FE 50/2.5 or 40/2.5 G for Sony A7C - Optically which is better?

Steve W

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So I understand the focal range differences very well and have owned several 40s and 50s. Currently own the 50/1.2, 35/1,4 an Batis 40/2 CF that I use on my larger Sony bodies but do want to buy one of the compact G lenses that sport aperture ring so I am looking at these two. Just wondering if anyone has direct experience and can comment on any optical quality differences between the two. Leaning toward the 50 because 3$/1.4 and 40/2 are not small but appear manageable (have had the body for a day now) but wouldn’t want to put the 50/1.2 on the A7C. Bought it for its compact size and not video since I needed something small for walking around with my wife were a large bag/backpack is not appreciated,

Please share your thoughts. Thank you.



Two things are infinite: the universe and human stupidity; and I’m not sure about the universe! - Words to live by. Albert Einstein
 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
 
Would simply get the best focal lenght for the job. What difference does optically almost equally good do if the focal lenght is not right?

In my case the 2.5/40 would have been the right lens (have the Sony 1.8/35) because the 2.5/50 would be a bit thight. Other will find 2.5/40 a bit too wide.

Let the focal lenght covering your need be your guide. ;-)
 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
 
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The DPR review of these covered some of the minor differences, so would've the Lenstip one but I think they goofed the charts and had the same exact data displayed for both, but yeah I'd agree with Trist and go with the more fitting FL for your use case or kit rather than whichever has any minor optical advantage.
 
The DPR review of these covered some of the minor differences, so would've the Lenstip one but I think they goofed the charts and had the same exact data displayed for both, but yeah I'd agree with Trist and go with the more fitting FL for your use case or kit rather than whichever has any minor optical advantage.
Well if I went based on focal length I probably would use a 40mm more. But I’ve said I do have the Batis 40/2 CF, which is not super small like these G lenses but is usable on the compact body but not as small as I wouId like. My 50mm f/1.2 GM is not usable so that points me at the 50/2.8 G. At 24mm I have the f/1.4 GM but that is small enough to use on the A7C.
 
The DPR review of these covered some of the minor differences, so would've the Lenstip one but I think they goofed the charts and had the same exact data displayed for both, but yeah I'd agree with Trist and go with the more fitting FL for your use case or kit rather than whichever has any minor optical advantage.
Well if I went based on focal length I probably would use a 40mm more. But I’ve said I do have the Batis 40/2 CF, which is not super small like these G lenses but is usable on the compact body but not as small as I wouId like. My 50mm f/1.2 GM is not usable so that points me at the 50/2.8 G. At 24mm I have the f/1.4 GM but that is small enough to use on the A7C.
Even the 100-400 GM is small enough to be used with the A7c. No reason why one should use only smaller lenses just because the camera body is small.

No lens is too small for the A7c. If I did not already have the 1.8/35 then the 2.5/40 G would usually sit on my A7c whenever wanting a compact system.
 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
Totally agree - I love the Samyangs even though they do feel cheap (at least partly a design decision to make them light).

I'm looking for a small walkabout lens and I've been stalking the 40G and 50G for a while but just haven't been convinced enough to pull the trigger. Nobody seems to love these lenses, they just seem to be ok-ish. Whereas lots of people love the Samyangs (and a fair few people don't, but that's OK too!). IMHO I think they made a mistake making them Gs - they're too slow and too expensive for what they offer to the end user. I think they should have made them non-G and cheaper, and then made slightly larger/heavier/more expensive lenses at say 1.7/1.8/2, something around there and made them the Gs. The non-Gs would have sold by the bucketload, and the A7c would have the option of a higher quality lens to match the form factor as well. Presumably that's coming anyway, but they'll have to price them way too high because of the existing G pricing.

For now it's hard to justify the cost of these G lenses when you've got Samyang tiny range, Sigma contemporary range and several 2.8s that offer competitive IQ and size for much less money.
 
The DPR review of these covered some of the minor differences, so would've the Lenstip one but I think they goofed the charts and had the same exact data displayed for both, but yeah I'd agree with Trist and go with the more fitting FL for your use case or kit rather than whichever has any minor optical advantage.
They did on their English site, not on the main polish one.


 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
Totally agree - I love the Samyangs even though they do feel cheap (at least partly a design decision to make them light).

I'm looking for a small walkabout lens and I've been stalking the 40G and 50G for a while but just haven't been convinced enough to pull the trigger. Nobody seems to love these lenses, they just seem to be ok-ish. Whereas lots of people love the Samyangs (and a fair few people don't, but that's OK too!). IMHO I think they made a mistake making them Gs - they're too slow and too expensive for what they offer to the end user. I think they should have made them non-G and cheaper, and then made slightly larger/heavier/more expensive lenses at say 1.7/1.8/2, something around there and made them the Gs. The non-Gs would have sold by the bucketload, and the A7c would have the option of a higher quality lens to match the form factor as well. Presumably that's coming anyway, but they'll have to price them way too high because of the existing G pricing.

For now it's hard to justify the cost of these G lenses when you've got Samyang tiny range, Sigma contemporary range and several 2.8s that offer competitive IQ and size for much less money.
I managed to get a used 40G. I love the lens. I like the images I get and the light weight. All the controls are convenient as well. One feature I really enjoy that I don't see discussed much in the close focus distance.
 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
Totally agree - I love the Samyangs even though they do feel cheap (at least partly a design decision to make them light).

I'm looking for a small walkabout lens and I've been stalking the 40G and 50G for a while but just haven't been convinced enough to pull the trigger. Nobody seems to love these lenses, they just seem to be ok-ish. Whereas lots of people love the Samyangs (and a fair few people don't, but that's OK too!). IMHO I think they made a mistake making them Gs - they're too slow and too expensive for what they offer to the end user. I think they should have made them non-G and cheaper, and then made slightly larger/heavier/more expensive lenses at say 1.7/1.8/2, something around there and made them the Gs. The non-Gs would have sold by the bucketload, and the A7c would have the option of a higher quality lens to match the form factor as well. Presumably that's coming anyway, but they'll have to price them way too high because of the existing G pricing.

For now it's hard to justify the cost of these G lenses when you've got Samyang tiny range, Sigma contemporary range and several 2.8s that offer competitive IQ and size for much less money.
I managed to get a used 40G. I love the lens. I like the images I get and the light weight. All the controls are convenient as well. One feature I really enjoy that I don't see discussed much in the close focus distance.
Fab there's a +1 then! I clicked through to your flickr with some photos from this lens, looks super nice - nice colours and contrast. Would have liked to have seen the F40 behind the Dino :)
 
I managed to get a used 40G. I love the lens. I like the images I get and the light weight. All the controls are convenient as well. One feature I really enjoy that I don't see discussed much in the close focus distance.
Fab there's a +1 then! I clicked through to your flickr with some photos from this lens, looks super nice - nice colours and contrast. Would have liked to have seen the F40 behind the Dino :)
Thanks. It was a great car show and should return next year.
 
The DPR review of these covered some of the minor differences, so would've the Lenstip one but I think they goofed the charts and had the same exact data displayed for both, but yeah I'd agree with Trist and go with the more fitting FL for your use case or kit rather than whichever has any minor optical advantage.
They did on their English site, not on the main polish one.

https://www.optyczne.pl/528.4-Test_obiektywu-Sony_FE_50_mm_f_2.5_G_Rozdzielczość_obrazu.html

https://www.optyczne.pl/527.4-Test_obiektywu-Sony_FE_40_mm_f_2.5_G_Rozdzielczość_obrazu.html
Nice catch, looks like the 40mm might have a slight edge in sharpness.
 
Nobody will EVER notice the difference in optical quality between the two except for lab technicians.
 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
Totally agree - I love the Samyangs even though they do feel cheap (at least partly a design decision to make them light).

I'm looking for a small walkabout lens and I've been stalking the 40G and 50G for a while but just haven't been convinced enough to pull the trigger. Nobody seems to love these lenses, they just seem to be ok-ish. Whereas lots of people love the Samyangs (and a fair few people don't, but that's OK too!). IMHO I think they made a mistake making them Gs - they're too slow and too expensive for what they offer to the end user. I think they should have made them non-G and cheaper, and then made slightly larger/heavier/more expensive lenses at say 1.7/1.8/2, something around there and made them the Gs. The non-Gs would have sold by the bucketload, and the A7c would have the option of a higher quality lens to match the form factor as well. Presumably that's coming anyway, but they'll have to price them way too high because of the existing G pricing.

For now it's hard to justify the cost of these G lenses when you've got Samyang tiny range, Sigma contemporary range and several 2.8s that offer competitive IQ and size for much less money.
Yes, these are overpriced by about $200. Either that or put out a non-G for $250-300 (fyi, Nikon just released a 40mm f2 for $300). Do either of those and these lenses would be flying off the shelves, they'd sell more cameras, attract a wider customer bse, and more customer reviews would be piling up on online stores.
 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
Totally agree - I love the Samyangs even though they do feel cheap (at least partly a design decision to make them light).

I'm looking for a small walkabout lens and I've been stalking the 40G and 50G for a while but just haven't been convinced enough to pull the trigger. Nobody seems to love these lenses, they just seem to be ok-ish. Whereas lots of people love the Samyangs (and a fair few people don't, but that's OK too!). IMHO I think they made a mistake making them Gs - they're too slow and too expensive for what they offer to the end user. I think they should have made them non-G and cheaper, and then made slightly larger/heavier/more expensive lenses at say 1.7/1.8/2, something around there and made them the Gs. The non-Gs would have sold by the bucketload, and the A7c would have the option of a higher quality lens to match the form factor as well. Presumably that's coming anyway, but they'll have to price them way too high because of the existing G pricing.

For now it's hard to justify the cost of these G lenses when you've got Samyang tiny range, Sigma contemporary range and several 2.8s that offer competitive IQ and size for much less money.
Yes, these are overpriced by about $200. Either that or put out a non-G for $250-300 (fyi, Nikon just released a 40mm f2 for $300). Do either of those and these lenses would be flying off the shelves, they'd sell more cameras, attract a wider customer bse, and more customer reviews would be piling up on online stores.
I wouldn't say they're that overpriced, if they were $200 cheaper (ie $400) they would essentially be close to price parity with stuff like Samyang's primes, and AFAIK those don't have declickable aperture wheels (granted the custom switch that lets you use the focus wheel for it is handy), or linear AF motors, or linearly mapped MF, or the same short MFDs, and some of them lack sealing.

Those G-class features are worth something even if they aren't your priority, so size and speed trade-offs aside I think $600 isn't that bad for the Sony trio. I'm sure they'll eventually be on sale for $50 or $100 off and they're pretty popular as is, the Sigma 24/3.5 & 45/2.8 aren't much cheaper either. I think if size isn't a big priority there's absolutely better values tho.

IMO the 50 G and the 40G in particular face a bit stiffer competition from the SY 45/1.8 (only 10mm longer) and the bevy of 35s available, whereas the 24G is mainly competing with the Sigma 24/3.5 & SY 24/2.8 (if it's size is a priority). YMMV I think Sony knows what they're doing tho, they're not trying to race to the bottom against 3rd parties.

That $300 Nikon is like a 1st party lens built like a 3rd party one IMO, no sealing, slower AF motors, etc. Nothing wrong with that as it's still adding to Z mount's appeal, but E mount isn't lacking in $200-300 primes.
 
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I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
Totally agree - I love the Samyangs even though they do feel cheap (at least partly a design decision to make them light).

I'm looking for a small walkabout lens and I've been stalking the 40G and 50G for a while but just haven't been convinced enough to pull the trigger. Nobody seems to love these lenses, they just seem to be ok-ish. Whereas lots of people love the Samyangs (and a fair few people don't, but that's OK too!). IMHO I think they made a mistake making them Gs - they're too slow and too expensive for what they offer to the end user. I think they should have made them non-G and cheaper, and then made slightly larger/heavier/more expensive lenses at say 1.7/1.8/2, something around there and made them the Gs. The non-Gs would have sold by the bucketload, and the A7c would have the option of a higher quality lens to match the form factor as well. Presumably that's coming anyway, but they'll have to price them way too high because of the existing G pricing.

For now it's hard to justify the cost of these G lenses when you've got Samyang tiny range, Sigma contemporary range and several 2.8s that offer competitive IQ and size for much less money.
Yes, these are overpriced by about $200. Either that or put out a non-G for $250-300 (fyi, Nikon just released a 40mm f2 for $300). Do either of those and these lenses would be flying off the shelves, they'd sell more cameras, attract a wider customer bse, and more customer reviews would be piling up on online stores.
I wouldn't say they're that overpriced, if they were $200 cheaper (ie $400) they would essentially be close to price parity with stuff like Samyang's primes, and AFAIK those don't have declickable aperture wheels (granted the custom switch that lets you use the focus wheel for it is handy), or linear AF motors, or linearly mapped MF, or the same short MFDs, and some of them lack sealing.

Those G-class features are worth something even if they aren't your priority, so size and speed trade-offs aside I think $600 isn't that bad for the Sony trio. I'm sure they'll eventually be on sale for $50 or $100 off and they're pretty popular as is, the Sigma 24/3.5 & 45/2.8 aren't much cheaper either. I think if size isn't a big priority there's absolutely better values tho.

IMO the 50 G and the 40G in particular face a bit stiffer competition from the SY 45/1.8 (only 10mm longer) and the bevy of 35s available, whereas the 24G is mainly competing with the Sigma 24/3.5 & SY 24/2.8 (if it's size is a priority). YMMV I think Sony knows what they're doing tho, they're not trying to race to the bottom against 3rd parties.

That $300 Nikon is like a 1st party lens built like a 3rd party one IMO, no sealing, slower AF motors, etc. Nothing wrong with that as it's still adding to Z mount's appeal, but E mount isn't lacking in $200-300 primes.
I think you're right in what you say - they are premium-ish lenses (at least heading in that direction) but I'm just not sure people want that in a slow walkabout lens enough to pay that sort of premium. I'm willing to bet that sales of these lenses have been very low, and Sony are rethinking their strategy a bit for the next releases along this line. There's very little chat or discussion about these lenses (apart from how much they're overpriced!), there are very few moving in the used marketplace, very few image threads etc.

I'd love one, but I'm not paying £629 for one - that's insane. Why do you need declickable aperture wheel or focus hold button if they're too small to easily use, why do you need dual linear motors to move such small glass, is the build quality really G quality? I've heard a lot of people say the Sigmas are better built. Are they really G IQ? IMHO they should have dropped one or two of these features and put them out around £499 and they would have had better luck. You can get them grey import for £429 and I'm still on the fence even at that price.
 
I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
Totally agree - I love the Samyangs even though they do feel cheap (at least partly a design decision to make them light).

I'm looking for a small walkabout lens and I've been stalking the 40G and 50G for a while but just haven't been convinced enough to pull the trigger. Nobody seems to love these lenses, they just seem to be ok-ish. Whereas lots of people love the Samyangs (and a fair few people don't, but that's OK too!). IMHO I think they made a mistake making them Gs - they're too slow and too expensive for what they offer to the end user. I think they should have made them non-G and cheaper, and then made slightly larger/heavier/more expensive lenses at say 1.7/1.8/2, something around there and made them the Gs. The non-Gs would have sold by the bucketload, and the A7c would have the option of a higher quality lens to match the form factor as well. Presumably that's coming anyway, but they'll have to price them way too high because of the existing G pricing.

For now it's hard to justify the cost of these G lenses when you've got Samyang tiny range, Sigma contemporary range and several 2.8s that offer competitive IQ and size for much less money.
Yes, these are overpriced by about $200. Either that or put out a non-G for $250-300 (fyi, Nikon just released a 40mm f2 for $300). Do either of those and these lenses would be flying off the shelves, they'd sell more cameras, attract a wider customer bse, and more customer reviews would be piling up on online stores.
I wouldn't say they're that overpriced, if they were $200 cheaper (ie $400) they would essentially be close to price parity with stuff like Samyang's primes, and AFAIK those don't have declickable aperture wheels (granted the custom switch that lets you use the focus wheel for it is handy), or linear AF motors, or linearly mapped MF, or the same short MFDs, and some of them lack sealing.

Those G-class features are worth something even if they aren't your priority, so size and speed trade-offs aside I think $600 isn't that bad for the Sony trio. I'm sure they'll eventually be on sale for $50 or $100 off and they're pretty popular as is, the Sigma 24/3.5 & 45/2.8 aren't much cheaper either. I think if size isn't a big priority there's absolutely better values tho.

IMO the 50 G and the 40G in particular face a bit stiffer competition from the SY 45/1.8 (only 10mm longer) and the bevy of 35s available, whereas the 24G is mainly competing with the Sigma 24/3.5 & SY 24/2.8 (if it's size is a priority). YMMV I think Sony knows what they're doing tho, they're not trying to race to the bottom against 3rd parties.

That $300 Nikon is like a 1st party lens built like a 3rd party one IMO, no sealing, slower AF motors, etc. Nothing wrong with that as it's still adding to Z mount's appeal, but E mount isn't lacking in $200-300 primes.
I think you're right in what you say - they are premium-ish lenses (at least heading in that direction) but I'm just not sure people want that in a slow walkabout lens enough to pay that sort of premium. I'm willing to bet that sales of these lenses have been very low, and Sony are rethinking their strategy a bit for the next releases along this line. There's very little chat or discussion about these lenses (apart from how much they're overpriced!), there are very few moving in the used marketplace, very few image threads etc.

I'd love one, but I'm not paying £629 for one - that's insane.
Not at all for those who want one and are willing to pay.
Why do you need declickable aperture wheel or focus hold button if they're too small to easily use, why do you need dual linear motors to move such small glass, is the build quality really G quality?
Well it is G lenses and extremely fast and precise auto focus are selling points. That is part of why one pay extra for those lenses. And the fact that the image quality is very good all over the focus range. Typically those cheaper lenses are much weaker at close focus.
I've heard a lot of people say the Sigmas are better built.
How do they know without disassembling the lens? Pure speculation.
Are they really G IQ?
What is G image quality?

My impression is that G is about the entire package and include build quality and even the focus motors in the lens.
IMHO they should have dropped one or two of these features and put them out around £499 and they would have had better luck.
But then they would be just like the cheaper options. Slower auto focus, more sloppy build quality, and not performing as good at close focus. If that is what you want why not just buy one of the cheaper options and be happy with that?

That is regarded as good value for the money for some. But not all.
 
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I haven't tried the 50 G. The Sigma 45 generally produces better images than the 40 G for me. The Sigma is much better put together. The Sony reminds me of cheap imitation of the Sigma. From a distance the Sony seems pretty nice, just don't look too closely or touch it. I do prefer the odd Sony hood. It makes the controls much easier to use.
That's interesting - is the 50G/40G built a bit more like the 28-60?

The Sigmas are a bit heavy but super nice build quality.
I've never handled the 28-60 but I don't mind the build of my 24/2.8 G at all, subjectively it still feels more solid than my Samyangs, practically speaking I just don't care that much about how they feel vs how they work. YMMV
Totally agree - I love the Samyangs even though they do feel cheap (at least partly a design decision to make them light).

I'm looking for a small walkabout lens and I've been stalking the 40G and 50G for a while but just haven't been convinced enough to pull the trigger. Nobody seems to love these lenses, they just seem to be ok-ish. Whereas lots of people love the Samyangs (and a fair few people don't, but that's OK too!). IMHO I think they made a mistake making them Gs - they're too slow and too expensive for what they offer to the end user. I think they should have made them non-G and cheaper, and then made slightly larger/heavier/more expensive lenses at say 1.7/1.8/2, something around there and made them the Gs. The non-Gs would have sold by the bucketload, and the A7c would have the option of a higher quality lens to match the form factor as well. Presumably that's coming anyway, but they'll have to price them way too high because of the existing G pricing.

For now it's hard to justify the cost of these G lenses when you've got Samyang tiny range, Sigma contemporary range and several 2.8s that offer competitive IQ and size for much less money.
Yes, these are overpriced by about $200. Either that or put out a non-G for $250-300 (fyi, Nikon just released a 40mm f2 for $300). Do either of those and these lenses would be flying off the shelves, they'd sell more cameras, attract a wider customer bse, and more customer reviews would be piling up on online stores.
I wouldn't say they're that overpriced, if they were $200 cheaper (ie $400) they would essentially be close to price parity with stuff like Samyang's primes, and AFAIK those don't have declickable aperture wheels (granted the custom switch that lets you use the focus wheel for it is handy), or linear AF motors, or linearly mapped MF, or the same short MFDs, and some of them lack sealing.

Those G-class features are worth something even if they aren't your priority, so size and speed trade-offs aside I think $600 isn't that bad for the Sony trio. I'm sure they'll eventually be on sale for $50 or $100 off and they're pretty popular as is, the Sigma 24/3.5 & 45/2.8 aren't much cheaper either. I think if size isn't a big priority there's absolutely better values tho.

IMO the 50 G and the 40G in particular face a bit stiffer competition from the SY 45/1.8 (only 10mm longer) and the bevy of 35s available, whereas the 24G is mainly competing with the Sigma 24/3.5 & SY 24/2.8 (if it's size is a priority). YMMV I think Sony knows what they're doing tho, they're not trying to race to the bottom against 3rd parties.

That $300 Nikon is like a 1st party lens built like a 3rd party one IMO, no sealing, slower AF motors, etc. Nothing wrong with that as it's still adding to Z mount's appeal, but E mount isn't lacking in $200-300 primes.
I think you're right in what you say - they are premium-ish lenses (at least heading in that direction) but I'm just not sure people want that in a slow walkabout lens enough to pay that sort of premium. I'm willing to bet that sales of these lenses have been very low, and Sony are rethinking their strategy a bit for the next releases along this line. There's very little chat or discussion about these lenses (apart from how much they're overpriced!), there are very few moving in the used marketplace, very few image threads etc.

I'd love one, but I'm not paying £629 for one - that's insane.
Not at all for those who want one and are willing to pay.
Why do you need declickable aperture wheel or focus hold button if they're too small to easily use, why do you need dual linear motors to move such small glass, is the build quality really G quality?
Well it is G lenses and extremely fast and precise auto focus are selling points. That is part of why one pay extra for those lenses. And the fact that the image quality is very good all over the focus range. Typically those cheaper lenses are much weaker at close focus.
I've heard a lot of people say the Sigmas are better built.
How do they know without disassembling the lens? Pure speculation.
Are they really G IQ?
What is G image quality?

My impression is that G is about the entire package and include build quality and even the focus motors in the lens.
IMHO they should have dropped one or two of these features and put them out around £499 and they would have had better luck.
But then they would be just like the cheaper options. Slower auto focus, more sloppy build quality, and not performing as good at close focus. If that is what you want why not just buy one of the cheaper options and be happy with that?

That is regarded as good value for the money for some. But not all.
Fair points :)

It will be really interesting to see what Sony's next move is with this kind of lens design direction.
 

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