I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Started Oct 10, 2011 | Discussions
Rob from thepicturedeskca Regular Member • Posts: 485
I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

I spent a couple hours testing the Sony NEX7 with some Zeiss lenses.

This is a list of the images on flickr and blogs for the Sony NEX7 I tested with a selection of Zeiss M-mount lenses. The camera is pre-production but I just received it Thursday and it's the most up-to-date version I've had so far.

Sorry I did not have the 21mm f4.5, 35mm f2.8, or 50mm f2 Planar. I don't have the 15mm f2.8 either but who does. LOL

-Rob Skeoch

Sony NEX7 with Zeiss ZM 18mm

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-m-mount-18mm-zm.html

http://www.flickr.com/photos/sportsphotorob/6232343310/in/photostream

Sony NEX7 with Zeiss ZM 21mm f2.8

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-m-mount-21mm-zm.html

http://www.flickr.com/photos/sportsphotorob/6232369426/in/photostream/

Sony NEX7 with Zeiss ZM 25mm

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-m-mount-25mm-zm.html

http://www.flickr.com/photos/sportsphotorob/6232391766/in/photostream/

Sony NEX7 with Zeiss ZM 28mm f2.8

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-m-mount-28mm-zm.html

http://www.flickr.com/photos/sportsphotorob/6231896723/in/photostream/

Sony NEX7 with Zeiss ZM 35mm f2

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-m-mount-35mm-zm.html

http://www.flickr.com/photos/sportsphotorob/6231917737/in/photostream/

Sony NEX7 with Zeiss ZM 50mm f1.5 Sonnar

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-m-mount-50mm-zm.html

http://www.flickr.com/photos/sportsphotorob/6231932967/in/photostream/

Sony NEX7 with Zeiss ZM 85mm

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-m-mount-85mm-zm.html

http://www.flickr.com/photos/sportsphotorob/6231947191/in/photostream/

Sony NEX7 with Zeiss Nikon mount 35mm f1.4

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-f-mount-35mm-zf2.html

http://www.flickr.com/photos/sportsphotorob/6232505836/in/photostream/

aman74 Veteran Member • Posts: 3,002
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Good job, but didn't you post this 3 hours ago?

James63 Forum Member • Posts: 87
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

aman74 wrote:

Good job, but didn't you post this 3 hours ago?

No last post was all sony lenses with Zeiss E-mount , these are all Zeiss M-mounts...

OP Rob from thepicturedeskca Regular Member • Posts: 485
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

I'm done posting.... for a long while. LOL. This was a ton of work and I've run out of ideas anyway.

Hope this is useful to someone.

-Rob Skeoch

Gary H Senior Member • Posts: 2,473
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Thanks.. you deserve a break. I've lots of Zeiss glass so this was useful.

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sroute Senior Member • Posts: 2,497
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Rob from thepicturedeskca wrote:

I spent a couple hours testing the Sony NEX7 with some Zeiss lenses.
Sony NEX7 with Zeiss Nikon mount 35mm f1.4

http://thepicturedesk.blogspot.com/2011/10/sony-nex7-with-zeiss-f-mount-35mm-zf2.html

First, thanks for taking the time to shoot and post these.

From the images it appears the Zeiss Nikon mount 35mm suffers from far less light fall off than the ZM glass. Would you expect that to hold true to other focal lengths?

seachicken2000
seachicken2000 Veteran Member • Posts: 3,237
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

These are invaluable, thanks for taking the time to shoot them.

The 85mm ZM at f/4 is a shocker. Is that really the way it behaves?

My Contax G is razor sharp at f/4 on the NEX-5 and I'd expect it's a similar design. Or did you test the tele Tessar rather than the Sonnar?
--
A rose by any other name is still a chicken.

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OP Rob from thepicturedeskca Regular Member • Posts: 485
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

I think the 85mm f4 is a tele design and not the sonnar. I think the 85mm f2 that was recently discontinued was a sonnar.

Photoworks Contributing Member • Posts: 606
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Thanks for posting this set of images. I was keen to see how M-mount glass performed on the NEX7. As fas as I can tell, IQ looks very poor in the outer zones of images for all lenses. I expected that it may struggle with wides below 28mm. But I was hoping it would perform well with 35mm and up. Unfortunately, this does not seem to be the case.

john inglis Regular Member • Posts: 446
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Thanks much!!

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rbmorse Regular Member • Posts: 322
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Yes, but with 24MP to play with you can crop the soft stuff off the edges and still get a nice image with which to work....

Sosua
Sosua Senior Member • Posts: 2,342
You the man!

Thanks Rob - really appreciate all your work on this - excellent to see what a whole range of lenses can do on the NEX-7.

Some in this forum appear to be quite over zealous with their requests and expectations from you - perhaps its more an indicator of how highly anticipated the NEX-7 is.

Thanks,
--

http://www.samwaldron.co.nz

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Sosua
Sosua Senior Member • Posts: 2,342
Which lenses specifically?

I'm downloading all the ones of interest to me at the moment so havn't looked, but the ZM 18 looked to have the goods at F8?

Be sure you are not looking at DOF issues?
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Sosua
Sosua Senior Member • Posts: 2,342
I see your point

Interesting however how they all look great at F8?

I'm not suggesting a lens like the ZM28 would be so poor in the corners wide open on a crop sensor, but if its a microlens issue, is it aggravated at wider apertures?

I'm not personally as concerned as I either shoot for deeper DOF (where corners matter) or shallow DOF (where I could care less for corners).

Interesting though.
--

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 Sosua's gear list:Sosua's gear list
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Photoworks Contributing Member • Posts: 606
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

A 28mm FF lens is already cropped to 42mm (equiv). I would prefer to not have to crop further just to get sharp corners. This adds an extra step during processing. It will also be difficult to frame accurately during shooting since you need to compensate for the additional cropping required in post processing.

rbmorse wrote:

Yes, but with 24MP to play with you can crop the soft stuff off the edges and still get a nice image with which to work....

Photoworks Contributing Member • Posts: 606
Re: I see your point

I also shoot both ways. However, with such poor edge performance, for shallow depth of field (portraits) you're forced to position your subject in the centre of the frame. I often shoot with subjects off-centre and it is important to have good resolution wide open and towards the edges of the frame.

Sosua wrote:

Interesting however how they all look great at F8?

I'm not suggesting a lens like the ZM28 would be so poor in the corners wide open on a crop sensor, but if its a microlens issue, is it aggravated at wider apertures?

I'm not personally as concerned as I either shoot for deeper DOF (where corners matter) or shallow DOF (where I could care less for corners).

Interesting though.
--

http://www.samwaldron.co.nz

ekeroil Regular Member • Posts: 272
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Something is wrong with that f/4 shot, there's not one single pixel in focus on it. I don't think even the worst lens in my possession (Sigma 70-300 AF-D Nikon mount) behaves so poorly at 85mm.

seachicken2000 wrote:

The 85mm ZM at f/4 is a shocker. Is that really the way it behaves?

My Contax G is razor sharp at f/4 on the NEX-5 and I'd expect it's a similar design. Or did you test the tele Tessar rather than the Sonnar?

Sosua
Sosua Senior Member • Posts: 2,342
Yes, some focus issues

With these shots to make them directly comparable, although certainly a good resource nevertheless.

It appears with good glass (and the ZE 24mm 1.8, 30mm F3.5 and 50mm F1.8 appear to be quality) the NEX-7 will perform well.

These are preproduction jpegs with standard sharpening, so expect significantly better results with RAW processing and top technique.

Very encouraging except the corners of the ZM lenses at wider apertures.
--

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Sosua
Sosua Senior Member • Posts: 2,342
Re: I see your point

Do you think its related to the angles of light?

Just seems odd that the ZM lenses all look great at F8.

Also strange that the white balance is different in every stopped down shot.

The images have been shot wide open first, then stopped down (form exif) - I doubt they were refocussed between shots so who knows - a number of the files show erratic focussing (manually done or otherwise).

I'm more interested in the legacy option in the wide end (VC 15mm / 12mm) - the Z24 F1.8 looks good, as does the 30 macro and the 50 F1.8.
--

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aman74 Veteran Member • Posts: 3,002
Re: I tried the Sony NEX7 with a selection of Zeiss M-mount lenses

Wow, that is some work!

Should be a good resource when people are lens hunting.

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