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Archive 2011 · Samples - NEX-7 with Zeiss ZM

SKumar25
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p.1 #1 · p.1 #1 · Samples - NEX-7 with Zeiss ZM

Yet another Nex thread!

Found these interesting. Sorry if this is old news...

http://forums.dpreview.com/forums/readflat.asp?forum=1042&message=39562656&changemode=1

Oct 27, 2011 at 12:42 AM

kosmoskatten
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p.1 #2 · p.1 #2 · Samples - NEX-7 with Zeiss ZM

It could have been interesting, but it was too poorly executed for me to make anything out of.

I am somewhat disappointed by the ZM18 performance on the NEX7, but it is hard to see what he actually focused on. Also, I find it strange that his corner performance is so bad at f4 since it looks A LOT better on the full frame M9. Right side looks worse so I am wondering what's out of whack here.

ZM25 performance does not look like what I am used to seeing. The ZM28 looks worse and the difference is in line with what to expect but neither looks like nearly as good as what I've managed to cram out of the NEX5N or the M9 which leads me to think that there is something wrong here.

ZM85 looks downright misfocused and after looking at these four samples I decided I could not make anything out of this. From this quick and dirty test I would not buy the NEX7 but I don't think it does the NEX or the ZM lenses justice. If I were a potential buyer of the NEX7 or ZM lenses this set of images would have put me off.

Oct 27, 2011 at 01:24 AM

SKumar25
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p.1 #3 · p.1 #3 · Samples - NEX-7 with Zeiss ZM

Some from the 35 ZF too. These look a lot better than the ZM samples:

http://www.flickr.com/photos/sportsphotorob/

Oct 27, 2011 at 01:28 AM

kosmoskatten
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p.1 #4 · p.1 #4 · Samples - NEX-7 with Zeiss ZM

Yes, they look a whole lot better! What gives?

I am starting to think a lousy adapter here. The samples of the ZM are so bad I can't really believe it. It sure looks like he used a Hawk's adapter and knocked the variable helicoid out if its infinity stop.

Oct 27, 2011 at 01:38 AM

slungu
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p.1 #5 · p.1 #5 · Samples - NEX-7 with Zeiss ZM

From the CA amount in some of the wide open shots ( that are unfortunately overexposed at 1/4000 ) I would suspect that there are issues with the adapter. I could focus the ZM35 on infinity based on the amount of CA that is visible, so I would suspect something wrong with the adapter, that shows more or less in the various tests. Sorry, but I can only partly look at the color cast on the wides - that was also what I wanted to see.

Oct 27, 2011 at 02:02 AM

philber
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p.1 #6 · p.1 #6 · Samples - NEX-7 with Zeiss ZM

I've only had my ZM 18 a couple of days on my 5N, but if it had looked anything like this, I would have returned it ASAP.

Oct 27, 2011 at 02:02 AM

SKumar25
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p.1 #7 · p.1 #7 · Samples - NEX-7 with Zeiss ZM

Could it be the shorter registration distance for the ZMs?

Quite disappointing. Was hoping to use the nex whilst I collected lenses for m10 / m11...

Oct 27, 2011 at 02:04 AM

slungu
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p.1 #8 · p.1 #8 · Samples - NEX-7 with Zeiss ZM

SKumar25 wrote:
Could it be the shorter registration distance for the ZMs?

Quite disappointing. Was hoping to use the nex whilst I collected lenses for m10 / m11...

I think that's a good idea and it will work, either with the 5N or with the 7. I don't think you should read too much into this test. The only thing I still fight after almost one year with the NEX3 is infinity focus.

Oct 27, 2011 at 02:39 AM

SKumar25
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p.1 #9 · p.1 #9 · Samples - NEX-7 with Zeiss ZM

philber wrote:
I've only had my ZM 18 a couple of days on my 5N, but if it had looked anything like this, I would have returned it ASAP.

Hi Philippe, please can you share some samples if you can. Do you see colour issues in the corners?

Oct 27, 2011 at 02:40 AM

SKumar25
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p.1 #10 · p.1 #10 · Samples - NEX-7 with Zeiss ZM

slungu wrote:
I think that's a good idea and it will work, either with the 5N or with the 7. I don't think you should read too much into this test. The only thing I still fight after almost one year with the NEX3 is infinity focus.

Thanks slungu. What's the issue with infinity focus?

Oct 27, 2011 at 02:44 AM

kosmoskatten
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p.1 #11 · p.1 #11 · Samples - NEX-7 with Zeiss ZM

I will quick post a sample in a few minutes, I am heading out the door but I think I can swiftly upload a sample of the ZM18 on the 5N. I have had no trouble with it and I haven't noticed any color issues either. But I'll have to look extra close before saying that for sure, stay tuned.

Henrik

Oct 27, 2011 at 03:36 AM

kosmoskatten
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p.1 #12 · p.1 #12 · Samples - NEX-7 with Zeiss ZM

Just for you, instant straight OOC Jpeg, nothing altered and full frame on Auto Iso.
ZM18 at f4 on the NEX5N. One of the living room walls. I shut off the downlights as not to mess up the lighting so it will be easier to gauge the outcome against the white wall.

¨

Left hand upper corner shadow is from our cat pole.

Just realized: photos on the wall (mid and right) are taken with the old Hassy that is on the wall mounted cupboard. I built the cupboard out of oak scrap, made the pictureframes at a welding shop, my GF framed the shots, they were printed at home. Even the speakers on the cupboard are home made, as is the shelf on the wall. The only thing bought in the picture is the lantern. And the doors for the cupboard. Man, I feel cheap.

Edited on Oct 27, 2011 at 04:20 AM · View previous versions

Oct 27, 2011 at 03:44 AM

kosmoskatten
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p.1 #13 · p.1 #13 · Samples - NEX-7 with Zeiss ZM

This is how close the Hawk's adapter will take you with the ZM18/4. Excuse the poor quality, it is handheld and merely downsized and Photubucketized. The color shift in the corner is simply due to the downlights being on and the one downlight in that spot fading out.

This one is roughly at the near focus limit with possibly a small twist on the helicoid. Again, Photobucket kills the sharpness, but here it is:

EDIT; both shots are quick and dirty Jpegs.

Oct 27, 2011 at 04:08 AM

DoubleNegative
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p.1 #14 · p.1 #14 · Samples - NEX-7 with Zeiss ZM

Those DPR samples (on Flickr) are HORRIBLE. What is up with the corners in every shot? Granted, in some shots the lenses are wide open... But still. Every image has soft, smeared corners.

Ugh. I *was* slightly interested in the NEX-7 but I think I'm over that now.

Oct 27, 2011 at 07:20 AM

slungu
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p.1 #15 · p.1 #15 · Samples - NEX-7 with Zeiss ZM

DoubleNegative wrote:
Those DPR samples (on Flickr) are HORRIBLE. What is up with the corners in every shot? Granted, in some shots the lenses are wide open... But still. Every image has soft, smeared corners.

Ugh. I *was* slightly interested in the NEX-7 but I think I'm over that now.

So, a clearly flawed so-called "test" with a preproduction camera is setting you off ? I'm over looking at those pictures, but not the NEX-7, even if I probably end up with a 5N and a EVF.

Oct 27, 2011 at 07:29 AM

VinnieJ
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p.1 #16 · p.1 #16 · Samples - NEX-7 with Zeiss ZM

The f8 shots are not that bad. You need to pixel peep to see any smearing. All the wide open shots had obvious problems but who would shoot a scene like that wide open?

Oct 27, 2011 at 07:31 AM

slungu
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p.1 #17 · p.1 #17 · Samples - NEX-7 with Zeiss ZM

SKumar25 wrote:
Thanks slungu. What's the issue with infinity focus?

I am always having a hard time focusing my lenses for infinity right, esp. the 35 and the 15, since both adaptors will allow focusing past infinity. I should try and take some time to calibrate those adaptors, because I suspect some degradation of performance also. For subjects close- to mid-distance everything works fine and the results are great, but far subjects are a hit and miss for me right now. I liked the times when I was walking with a Canon and a 28mm put up to 5.6 and at infinity and everything worked great. Hope to get to that one time.

Regards,
Stefan

Oct 27, 2011 at 07:34 AM

Tariq Gibran
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p.1 #18 · p.1 #18 · Samples - NEX-7 with Zeiss ZM

kosmoskatten wrote:
Just for you, instant straight OOC Jpeg, nothing altered and full frame on Auto Iso.
ZM18 at f4 on the NEX5N. One of the living room walls. I shut off the downlights as not to mess up the lighting so it will be easier to gauge the outcome against the white wall.

http://i7.photobucket.com/albums/y292/kosmoskatten/Skumar0443.jpg¨

Left hand upper corner shadow is from our cat pole.

Just realized: photos on the wall (mid and right) are taken with the old Hassy that is on the wall mounted cupboard. I built the cupboard out of oak scrap, made the pictureframes at a welding shop, my...Show more →

Wow, you have skills man! Everything looks really nice with a simple elegance as well.

Regarding the ZM's on the NEX-7, these examples were shown in another thread a while back. Some think they are unreliable, some think it may indicate that these lenses will not perform as well on the NEX-7 as the NEX-5n, possibly due to the smaller sensel size.

Oct 27, 2011 at 07:50 AM

DoubleNegative
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p.1 #19 · p.1 #19 · Samples - NEX-7 with Zeiss ZM

slungu wrote:
So, a clearly flawed so-called "test" with a preproduction camera is setting you off ? I'm over looking at those pictures, but not the NEX-7, even if I probably end up with a 5N and a EVF.
We'll see how it works out on newer tests...

VinnieJ wrote:
The f8 shots are not that bad. You need to pixel peep to see any smearing. All the wide open shots had obvious problems but who would shoot a scene like that wide open?
Doesn't mean you don't shoot OTHER scenes wide open...

Oct 27, 2011 at 08:12 AM

Tariq Gibran
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p.1 #20 · p.1 #20 · Samples - NEX-7 with Zeiss ZM

DoubleNegative wrote:
Doesn't mean you don't shoot OTHER scenes wide open...

Your also throwing away resolution by F8 due to diffraction, though the softness in these examples trumps diffraction effects by far. Your likely not seeing any better resolution in these examples than you might with something like a 12MP camera that performs well with the same lenses.

Oct 27, 2011 at 08:31 AM

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