Sigma says the E-mount too small for FF.

stevo23 said:

Fast tele primes are the kind of thing that comes out later after zoom tele. First, you need a 50 and a 35 equivalent - check. Then, people tend to want wide coverage and short telephoto coverage - most people get a 24-70 type of zoom - check.

Click to expand...

So, nobody takes portraits with Sony cameras? Where are 85-135 mm fast primes?

stevo23 said:

Sony's roadmap is actually quite logical - I don't have any complaints.

Click to expand...

I do: no fast AF tele primes are even on a roadmap.

'Sony needs...great lenses.'

Do you have any idea how many lenses fit the a7 and for that matter, all MILC Sonys?

Let me pass on a quick tip - it takes less time to fit any lens and adapter to these Sonys than any of these inane posts take the antagonist to type - yet still they come! It would make a cat laugh.

philip pj said:

Do you have any idea how many lenses fit the a7

Click to expand...

I do: Sony has exactly o-n-e fast AF e-mount prime for A7: 55mm F/1.8.

Total Sony has whopping t-w-o primes for A7: 55/1.8 and 35/2.8.

philip pj said:

Let me pass on a quick tip - it takes less time to fit any lens and adapter to these Sonys

Click to expand...

I have a tip for you too: Canikon lenses works without adapter on Canikon cameras, and have really fast and accurate autofocus.

Al_10D said:

stevo23 said:

Fast tele primes are the kind of thing that comes out later after zoom tele. First, you need a 50 and a 35 equivalent - check. Then, people tend to want wide coverage and short telephoto coverage - most people get a 24-70 type of zoom - check.

Click to expand...

So, nobody takes portraits with Sony cameras? Where are 85-135 mm fast primes?

Click to expand...

you are forgetting one salient fact - A7 is an open format allowing virtually any lens to adapt and work well. So no A7 user is without such a lens. I like the zeiss/contax 135 2.8 but I could get a Leica 135

Al_10D said:

Al_10D said:

Sony's roadmap is actually quite logical - I don't have any complaints.

Click to expand...

I do: no fast AF tele primes are even on a roadmap.

Click to expand...

The cameras been out only a year and the roadmap just goes into 2015 with a few blanks to fill in. I compare this to x series lens release frequency and Sony is comparable or ahead of where Fuji was. No need to cast dispersion just yet.

Hope I had a bad copy. May try again.

stevo23 said:

you are forgetting one salient fact - A7 is an open format allowing virtually any lens to adapt and work well.

Click to expand...

I'm not forgetting, I just don't care about adapters and manual (or slow) focus lenses.

Al_10D said:

stevo23 said:

Fast tele primes are the kind of thing that comes out later after zoom tele. First, you need a 50 and a 35 equivalent - check. Then, people tend to want wide coverage and short telephoto coverage - most people get a 24-70 type of zoom - check.

Click to expand...

So, nobody takes portraits with Sony cameras? Where are 85-135 mm fast primes?

Al_10D said:

Sony's roadmap is actually quite logical - I don't have any complaints.

Click to expand...

I do: no fast AF tele primes are even on a roadmap.

Click to expand...

There's a 90 macro but I believe it's one of those huge lenses intended for full frame cameras.

stevo23 said:

Al_10D said:

stevo23 said:

Fast tele primes are the kind of thing that comes out later after zoom tele. First, you need a 50 and a 35 equivalent - check. Then, people tend to want wide coverage and short telephoto coverage - most people get a 24-70 type of zoom - check.

Click to expand...

So, nobody takes portraits with Sony cameras? Where are 85-135 mm fast primes?

Click to expand...

you are forgetting one salient fact - A7 is an open format allowing virtually any lens to adapt and work well. So no A7 user is without such a lens. I like the zeiss/contax 135 2.8 but I could get a Leica 135

stevo23 said:

stevo23 said:

Sony's roadmap is actually quite logical - I don't have any complaints.

Click to expand...

I do: no fast AF tele primes are even on a roadmap.

Click to expand...

The cameras been out only a year and the roadmap just goes into 2015 with a few blanks to fill in. I compare this to x series lens release frequency and Sony is comparable or ahead of where Fuji was. No need to cast dispersion just yet.

Click to expand...

"Cast dispersion" ?????

For many lenses, I would quess no.

let's get it straight. Sigma did not say it cannot make FF lenses in e-mount. What was stated was that it presented some difficulties. What was not said was that the difficulties were insurmountable.

Euell said:

stevo23 said:

Al_10D said:

stevo23 said:

Fast tele primes are the kind of thing that comes out later after zoom tele. First, you need a 50 and a 35 equivalent - check. Then, people tend to want wide coverage and short telephoto coverage - most people get a 24-70 type of zoom - check.

Click to expand...

So, nobody takes portraits with Sony cameras? Where are 85-135 mm fast primes?

Click to expand...

you are forgetting one salient fact - A7 is an open format allowing virtually any lens to adapt and work well. So no A7 user is without such a lens. I like the zeiss/contax 135 2.8 but I could get a Leica 135

Euell said:

Euell said:

Sony's roadmap is actually quite logical - I don't have any complaints.

Click to expand...

I do: no fast AF tele primes are even on a roadmap.

Click to expand...

The cameras been out only a year and the roadmap just goes into 2015 with a few blanks to fill in. I compare this to x series lens release frequency and Sony is comparable or ahead of where Fuji was. No need to cast dispersion just yet.

Click to expand...

"Cast dispersion" ?????

Click to expand...

The camera's been out a year and there is so much complaining. They're doing quite well - better than you've seen with any other.

stevo23 said:

Euell said:

stevo23 said:

Al_10D said:

stevo23 said:

Fast tele primes are the kind of thing that comes out later after zoom tele. First, you need a 50 and a 35 equivalent - check. Then, people tend to want wide coverage and short telephoto coverage - most people get a 24-70 type of zoom - check.

Click to expand...

So, nobody takes portraits with Sony cameras? Where are 85-135 mm fast primes?

Click to expand...

you are forgetting one salient fact - A7 is an open format allowing virtually any lens to adapt and work well. So no A7 user is without such a lens. I like the zeiss/contax 135 2.8 but I could get a Leica 135

stevo23 said:

stevo23 said:

Sony's roadmap is actually quite logical - I don't have any complaints.

Click to expand...

I do: no fast AF tele primes are even on a roadmap.

Click to expand...

The cameras been out only a year and the roadmap just goes into 2015 with a few blanks to fill in. I compare this to x series lens release frequency and Sony is comparable or ahead of where Fuji was. No need to cast dispersion just yet.

Click to expand...

"Cast dispersion" ?????

Click to expand...

The camera's been out a year and there is so much complaining. They're doing quite well - better than you've seen with any other.

Click to expand...

The point was grammatical. The usage is "casting aspersions," not dispersions. It made me chuckle.

is 'casting nasturtiums', lol. I love how the web reinforces errors, like 'looser' - I guess a lot of losers are kind of loose characters, so fair enough. Born Looser would make a great tattoo, though.

And the great Americanism: 'I could care less' - to which any other Anglophile might reply: 'Well, why don't you?' The correct expression is: I couldn't care less.

A survey of health complaints some years back solicited the condition 'very coarse veins' (varicose veins).

Jimi Hendrix song lyric: 'Scuse me while I kiss this guy' ('scuse me while I kiss the sky).

Ben Affleck got enthusiastic about the Dems with: 'We have to enervate the base.' (energize)

An all time favorite: 'Woss this here sauce?' (Worstershire Sauce).

English is a language for the barking mad.

philip pj said:

is 'casting nasturtiums', lol. I love how the web reinforces errors, like 'looser' - I guess a lot of losers are kind of loose characters, so fair enough. Born Looser would make a great tattoo, though.

And the great Americanism: 'I could care less' - to which any other Anglophile might reply: 'Well, why don't you?' The correct expression is: I couldn't care less.

A survey of health complaints some years back solicited the condition 'very coarse veins' (varicose veins).

Jimi Hendrix song lyric: 'Scuse me while I kiss this guy' ('scuse me while I kiss the sky).

Ben Affleck got enthusiastic about the Dems with: 'We have to enervate the base.' (energize)

An all time favorite: 'Woss this here sauce?' (Worstershire Sauce).

English is a language for the barking mad.

Click to expand...

And I had thought this was supposed to be about cameras!

So, as with all difficulties, there are many possibilities.

Note, I own the Olympus 75mm f1.8 and judge all lenses I own, or have ever owned, by it.

Euell said:

stevo23 said:

Euell said:

stevo23 said:

Al_10D said:

stevo23 said:

Fast tele primes are the kind of thing that comes out later after zoom tele. First, you need a 50 and a 35 equivalent - check. Then, people tend to want wide coverage and short telephoto coverage - most people get a 24-70 type of zoom - check.

Click to expand...

So, nobody takes portraits with Sony cameras? Where are 85-135 mm fast primes?

Click to expand...

you are forgetting one salient fact - A7 is an open format allowing virtually any lens to adapt and work well. So no A7 user is without such a lens. I like the zeiss/contax 135 2.8 but I could get a Leica 135

Euell said:

Euell said:

Sony's roadmap is actually quite logical - I don't have any complaints.

Click to expand...

I do: no fast AF tele primes are even on a roadmap.

Click to expand...

The cameras been out only a year and the roadmap just goes into 2015 with a few blanks to fill in. I compare this to x series lens release frequency and Sony is comparable or ahead of where Fuji was. No need to cast dispersion just yet.

Click to expand...

"Cast dispersion" ?????

Click to expand...

The camera's been out a year and there is so much complaining. They're doing quite well - better than you've seen with any other.

Click to expand...

The point was grammatical. The usage is "casting aspersions," not dispersions. It made me chuckle.

Click to expand...

Ha ha. Thought you might like it.

philip pj said:

I blame Al! 10D or no 10D!

Click to expand...

Sorry, you lost me there.

tomtom50 said:

There is no optical argument to be had here. You can take any Sigma DSLR lens and out it on an a7 with an adapter and it is optically fine!

Sigma already understand E mount aperture and AF control, because they make AF E mount lenses.

Therefore...

Adding some FE lenses is not harder for Sigma than adding another DSLR mount. Easier, actually, because there is no mechanical aperture linkage in the FE mount. The mechanical adaptation involves lengthening the barrel and screwing on a different mount, that's all.

Click to expand...

Sorry but thwat is not completely true. The FE lenses are optimized for CDAF, the DSLR lenses are optimized for PDAF. This has all to do with how the lenses focus internly, it is not just other electronics or focus motor. Why do you think DSLR lenses are so slow in focussing on a MILC?

So it is more difficult (read more to design) for Sigma to create a new lens for FE. Not impossible (Sigma only tell it is more difficult and they are right).

tomtom50 said:

These lenses will not be compact, because they were designed for DSLR lens registers. I think they would be desirable nonetheless, because there are so few native FE choices.

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Unfortuantely it is not what will happen. And even when it was possible FE mount is such a small market that Sigma is probably not wanting to make lenses for it, even in the way you discribe, look how much longer it takes for them to create an A-mount or Pentax version of there lenses.

tomtom50 said:

What if you want a wider wide-angle zoom? Sigma makes a 12-24.

Click to expand...

You have to adapt the lens, it is probably cheaper then using an adapted by sigma lens.

tomtom50 said:

What if you want a telezoom but $1500 is out of budget? The Sigma 70-300 OS is a $200 lens.

Click to expand...

You have to adapt the lens, it is probably cheaper then using an adapted by sigma lens.

tomtom50 said:

What if you want faster than f4 in a telezoom? Sigma makes an f2.8.

Click to expand...

You have to adapt the lens, it is probably cheaper then using an adapted by sigma lens.

tomtom50 said:

This does not break Sigma's business model. Adjusting barrel length and making lenses for multiple mounts IS their business model.

Click to expand...

But mirrorless lenses are so much different from DSLR lenses that "simple build in adapter" is not enough. And you can do that yourself with an adapter.