RX10 lens quality?

Chris43 · Oct 18, 2013

Does anyone know when we might expect to see production level tests of this interesting new camera, and especially those which will tell us how good (hopefully) the lens is across the range.

My current setup is an A55 with various lenses from 18 up to 250mm, only one at f2.8, and it seems to me that this would be an ideal replacement, in just one convenient and probably better package.

I could probably sell most of my current kit and replace it at no extra cost with the RX10, similar size and certainly less weight.

My focal length analysis of my 14k+ photos shows I used >200mm on 0.4% of shots.With 25% extra pixels, some simple editing would catch that up easily; and the 24mm would bring me back to the angles I last had with my FF MInolta 700si.

Digital Nigel · Oct 18, 2013

But how many of your pics have a focal length >135, which is the RX10's max telephoto zoom in APS-C terms? Or, in other words, you'd be reducing your max from 375mm to 200mm in 35mm terms -- quite a drop.

MarioV · Oct 18, 2013

Digital Nigel said:
Digital Nigel wrote:

But how many of your pics have a focal length >135, which is the RX10's max telephoto zoom in APS-C terms? Or, in other words, you'd be reducing your max from 375mm to 200mm in 35mm terms -- quite a drop.

Yes, that has been on my mind also.

The RX10 covers most things, up to a certain point. 250mm (375mm on APS-C) is about the lowest I'd like to go.

I'd still like to see another innovation - a compact 24-480mm superzoom with 1/1.7" sensor and constant f/2.8 lens. This may be the best compromise in reach and quality?

SHood · Oct 18, 2013

MarioV said:
MarioV wrote:

MarioV said:

Digital Nigel wrote:

But how many of your pics have a focal length >135, which is the RX10's max telephoto zoom in APS-C terms? Or, in other words, you'd be reducing your max from 375mm to 200mm in 35mm terms -- quite a drop.

Click to expand...

Yes, that has been on my mind also.

The RX10 covers most things, up to a certain point. 250mm (375mm on APS-C) is about the lowest I'd like to go.

I'd still like to see another innovation - a compact 24-480mm superzoom with 1/1.7" sensor and constant f/2.8 lens. This may be the best compromise in reach and quality?

Cheng Bao · Oct 18, 2013

on paper, I've never seen a better MTF for a zoom lens here, let alone 8.3x F2.8 lens

Note, this MTF are marked as 60lp/mm, much higher than canon/nikon's 30 lp/mm and Zeiss/Leica's 40lp/mm standard.

In reality, the performance is remained to be seen.

Michael Fritzen · Oct 18, 2013

The RX10 is here scratching at the very principles of optical physics. When one needs to cover a certain sensor size the image circle produced by the lens needs to have the diametre of the frame's diagonal (or in real life a tad bigger). This is onepoint where one runs into limits. The second is the speed which means a lens with constant f/2,8 gets the bigger the longer the FL is. So for more reach one line for a compromise is to accept a slower lens (at least on the long end). Another compromise is working with a physically smaller sized sensor. And a combined compromise with a lens thst gets slower towards the long end on a camera with smaller sensor is what gets the super-mega-zooms. One principle though: there's no free lunch: a gain in one area means compromises in others.

--
Cheers,
Michael Fritzen

ncsakany · Oct 18, 2013

If real-life performance is anywhere close to that, it's very impressive indeed.

MarioV · Oct 18, 2013

SHood said:
SHood wrote:

SHood said:

MarioV wrote:

SHood said:

Digital Nigel wrote:

But how many of your pics have a focal length >135, which is the RX10's max telephoto zoom in APS-C terms? Or, in other words, you'd be reducing your max from 375mm to 200mm in 35mm terms -- quite a drop.

Click to expand...

Yes, that has been on my mind also.

The RX10 covers most things, up to a certain point. 250mm (375mm on APS-C) is about the lowest I'd like to go.

I'd still like to see another innovation - a compact 24-480mm superzoom with 1/1.7" sensor and constant f/2.8 lens. This may be the best compromise in reach and quality?

Click to expand...

VaLeX · Oct 18, 2013

Michael Fritzen said:
Michael Fritzen wrote:

The second is the speed which means a lens with constant f/2,8 gets the bigger the longer the FL is. So for more reach one line for a compromise is to accept a slower lens (at least on the long end).

christylewis · Oct 18, 2013

probably physically impossible

Chris43 · Oct 19, 2013

Digital Nigel said:
Digital Nigel wrote:

But how many of your pics have a focal length >135, which is the RX10's max telephoto zoom in APS-C terms? Or, in other words, you'd be reducing your max from 375mm to 200mm in 35mm terms -- quite a drop.

I'd agree, but the 200mm I mentioned is in APS-C terms, namely 135 in 35mm terms. I realise I may have then confused you by talking about the low end in 35mm terms, but at the long end I did mean what I said, I had already allowed for the 1.5 factor.

My pictures are usually people groups, landscapes, or of plants. This does skew the focal length ranges that I use towards the lower lengths, and why I use a 35mm -105mm old Minolta mini-beercan lens quite a bit, though it doesn't go low enough, though the macro isn't bad.

Chris43 · Oct 19, 2013

Cheng Bao said:
Cheng Bao wrote:

on paper, I've never seen a better MTF for a zoom lens here, let alone 8.3x F2.8 lens

Note, this MTF are marked as 60lp/mm, much higher than canon/nikon's 30 lp/mm and Zeiss/Leica's 40lp/mm standard.

In reality, the performance is remained to be seen.

Those do look impressive. So when do we get to see if they are as good in real life?

perry rhodan · Oct 19, 2013

The samples in full say it all. Stunning up to 3200.

http://www.dpreview.com/forums/post/52346583

R P

supeyugin1 · Oct 19, 2013

MarioV said:
MarioV wrote:

MarioV said:

Digital Nigel wrote:

But how many of your pics have a focal length >135, which is the RX10's max telephoto zoom in APS-C terms? Or, in other words, you'd be reducing your max from 375mm to 200mm in 35mm terms -- quite a drop.

Click to expand...

Yes, that has been on my mind also.

The RX10 covers most things, up to a certain point. 250mm (375mm on APS-C) is about the lowest I'd like to go.

I'd still like to see another innovation - a compact 24-480mm superzoom with 1/1.7" sensor and constant f/2.8 lens. This may be the best compromise in reach and quality?

MarioV · Oct 19, 2013

supeyugin1 said:
supeyugin1 wrote:

supeyugin1 said:

MarioV wrote:

supeyugin1 said:

Digital Nigel wrote:

But how many of your pics have a focal length >135, which is the RX10's max telephoto zoom in APS-C terms? Or, in other words, you'd be reducing your max from 375mm to 200mm in 35mm terms -- quite a drop.

Click to expand...

Yes, that has been on my mind also.

The RX10 covers most things, up to a certain point. 250mm (375mm on APS-C) is about the lowest I'd like to go.

I'd still like to see another innovation - a compact 24-480mm superzoom with 1/1.7" sensor and constant f/2.8 lens. This may be the best compromise in reach and quality?

--
Have a shooting great day,
Mario
http://www.flickr.com/photos/mario5200/
http://www.dpreview.com/galleries/8024660727/albums

Click to expand...

There is Panasonic FZ200 with 25-600/2.8 lens, but the sensor is 1/2.3". Pentax Q7 has a 1/1.7" and you can easily adapt any 105/2.8 or faster lens to it, which will be equivalent of 480mm. There is native Q lens with 69-207/2.8 specs.

Thanks, but if I want to stay with changing lenses, I'd stick to my D5200 and 2.8 lenses.

I'm looking at all-in-one's like the RX10 with larger sensors than 1/2.3".

--
Have a shooting great day,
Mario
http://www.flickr.com/photos/mario5200/
http://www.dpreview.com/galleries/8024660727/albums

Rehabdoc · Oct 19, 2013

christylewis said:
probably physically impossible

I don't know about impossible... But it would be hard.

The closest I can think of is the Fujifilm finepix X20, which has a 28-112 (4x) equivalent f2-f2.8 on a 2/3" sensor.

To put that on a 1" sensor requires a lens about 50% longer and 50% wider than the X20's.

Making it f2 all the way through and giving it 5x zoom would add considerably more than that.

supeyugin1 · Oct 20, 2013

MarioV said:
MarioV wrote:

MarioV said:

supeyugin1 wrote:

MarioV said:

MarioV wrote:

MarioV said:

Digital Nigel wrote:

But how many of your pics have a focal length >135, which is the RX10's max telephoto zoom in APS-C terms? Or, in other words, you'd be reducing your max from 375mm to 200mm in 35mm terms -- quite a drop.

Click to expand...

Yes, that has been on my mind also.

The RX10 covers most things, up to a certain point. 250mm (375mm on APS-C) is about the lowest I'd like to go.

I'd still like to see another innovation - a compact 24-480mm superzoom with 1/1.7" sensor and constant f/2.8 lens. This may be the best compromise in reach and quality?

Click to expand...

Click to expand...

2eyesee · Oct 20, 2013

Rehabdoc said:
Rehabdoc wrote:

Rehabdoc said:

probably physically impossible

Click to expand...

I don't know about impossible... But it would be hard.

The closest I can think of is the Fujifilm finepix X20, which has a 28-112 (4x) equivalent f2-f2.8 on a 2/3" sensor.

To put that on a 1" sensor requires a lens about 50% longer and 50% wider than the X20's.

Making it f2 all the way through and giving it 5x zoom would add considerably more than that.

I hear what you are saying. I'm glad Sony have shown an interest in expending their 1" sensor lineup with the RX10, but personally I would have liked to have seen even the same RX100 28-100mm lens as a constant aperture f/2.0.

Obviously it would be much larger than the existing RX100/M2, but for those like me who don't absolutely require a pocketable camera it would be a nice option.

tbcass · Oct 20, 2013

Chris43 said:
Chris43 wrote:

My current setup is an A55 with various lenses from 18 up to 250mm, only one at f2.8, and it seems to me that this would be an ideal replacement, in just one convenient and probably better package.

You forgot the A55 crop factor of 1.5 which makes your lens range 27-375 FF equiv.

tbcass · Oct 20, 2013

SHood said:
SHood wrote:
The Olympus Sylus 1 is coming at the end of the month. It has a 1/1.7" sensor with 24-300mm f2.8 lens. Just falling short of your long end requirements. Cost is expected to be $700.

A 1/1.7" sensor can't compare to the 1" sensor of the RX10.

RX10 lens quality?

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