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C/y 35-70 thread
  
 
mMontag
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p.50 #1 · p.50 #1 · C/y 35-70 thread


Most owners of this lens are happy with it and tend to hold onto them - I for one - highly recommended.

Originally produced by Zeiss for Contax - some of these lenses have been "converted" using an after market Leitax adapter to Nikon, Sony, Canon & etc mounts. You can also use a simple AF confirm adapter from E-bay.

http://www.ebay.com/itm/Contax-Vario-Sonnar-35-70mm-F-3-4-MMJ-Lens-EX-/280738664275?pt=Camera_Lenses&hash=item415d540f53

http://www.leitax.com/Zeiss-Contax-lenses-for-Canon-cameras.html

http://www.ebay.com/itm/Contax-Yashica-Canon-Adapter-AF-Confirm-OPTIX-V5-/120745596206?pt=LH_DefaultDomain_0&hash=item1c1cff952e



Sep 22, 2011 at 01:09 AM
Krosavcheg
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p.50 #2 · p.50 #2 · C/y 35-70 thread


Shooting a set with a model last night. Simple one strobe off camera setup. Noticed this morning a strange artefact (shot in portrait mode 90CCW rotation, so must be bottom line):

100% crop






Scanlines Hmm..also shot 21/2.8, Rokkor58 and Mamiya 85/1.9 that night, but can't see anything similar in other shots. Must be the flash attribute...

This particular is shot at 5.6, I recall...



Sep 23, 2011 at 09:53 AM
FlyPenFly
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p.50 #3 · p.50 #3 · C/y 35-70 thread


Looks like a recording or processing error.


Sep 23, 2011 at 11:31 AM
Krosavcheg
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p.50 #4 · p.50 #4 · C/y 35-70 thread


certainly looks like! perhaps time to retire my CF card..


Sep 23, 2011 at 11:49 AM
Krosavcheg
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p.50 #5 · p.50 #5 · C/y 35-70 thread


Just checked few random shots...this is only present in 35-70 shots with off camera flash.


Sep 23, 2011 at 12:34 PM
mirkoc
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p.50 #6 · p.50 #6 · C/y 35-70 thread


Krosavcheg wrote:
Just checked few random shots...this is only present in 35-70 shots with off camera flash.

How do you trigger your off camera flash? Some remote flash triggers are known to interfere with 5D.



Sep 23, 2011 at 01:53 PM
Krosavcheg
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p.50 #7 · p.50 #7 · C/y 35-70 thread


Mirkoc: That is absolutely correct. I use Cactus V4 right now.
Afaik, interference shows at 1/200-250s range and was a well known issue.
This is really weird - I shot a set before with 35-70 and remote trigger and didn't see a hint of this artefact...
But I am inclined to believe that this is indeed a trigger issue. Will have to shoot a bunch of test shots again..



Sep 23, 2011 at 03:45 PM
Krosavcheg
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p.50 #8 · p.50 #8 · C/y 35-70 thread


Upon closer examination, it appears to be signal interference. Not much to do except to shield the trigger best I can..


Sep 24, 2011 at 05:58 AM
briantho
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p.50 #9 · p.50 #9 · C/y 35-70 thread


Just testing...


Jan 29, 2014 at 09:44 PM
briantho
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p.50 #10 · p.50 #10 · C/y 35-70 thread


OK, so that explains why very old threads have been popping up on the forum lately... Arhcived threads can be brought back to life. Didn't know that.

Anyway, this is a good thread to bump now that I own this lens



Jan 29, 2014 at 09:46 PM
 

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leo11877
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p.50 #11 · p.50 #11 · C/y 35-70 thread


briantho wrote:
OK, so that explains why very old threads have been popping up on the forum lately... Arhcived threads can be brought back to life. Didn't know that.

Anyway, this is a good thread to bump now that I own this lens


Good to know too. There are some hidden gems in the Archive. I would like to see more of the 35-70mm images now that we have A7/Fuji and other mirrorless marvels ready to exploit this little master



Jan 29, 2014 at 09:50 PM
philip_pj
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p.50 #12 · p.50 #12 · C/y 35-70 thread


Let me tell you leo, the a7r loves the 35-70 to death, lol, it brings out all the subtlety of the colour and microncontrast the zoom has in abundance. Best used above 45mm, a little CA appears at the short end with the tough new taskmistress.

While on the subject, what I think the a7r does to most (depressingly many) lenses is this: where lower res sensors flatten out the best each lens has (in the centre regions) so the outer frame and corners look not bad at all, the a7r takes the centre to a higher level (often much higher) and outer frame and corners suddenly look weak, being far below.

It also exposes related weaknesses that underlie these frame areas such as curvature and sudden drops in microcontrast. Happily the 35-70 is close to the top of the pile, after 20 years...



Jan 29, 2014 at 11:11 PM
dovey
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p.50 #13 · p.50 #13 · C/y 35-70 thread


Phillip,
I could not agree more strongly.
I have a selection of Canon L primes and zooms, now the ZE551.8 and soon the 24-70, but the Contax zoom and 28mm are on my camera more than any other lens. The zoom also offers a 1:1 macro!



Jan 30, 2014 at 01:48 AM
Steve Spencer
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p.50 #14 · p.50 #14 · C/y 35-70 thread


dovey wrote:
Phillip,
I could not agree more strongly.
I have a selection of Canon L primes and zooms, now the ZE551.8 and soon the 24-70, but the Contax zoom and 28mm are on my camera more than any other lens. The zoom also offers a 1:1 macro!


The macro feature is actually 1:2.5 (here is the link to the Zeiss data sheet: http://lenses.zeiss.com/content/dam/Photography/new/pdf/en/downloadcenter/contax_yashica/vario-sonnar3-4_35-70mm_e.pdf), but it is still very useful.



Jan 30, 2014 at 01:53 AM
philip_pj
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p.50 #15 · p.50 #15 · C/y 35-70 thread


1:2.5 is indeed correct for the CY 35-70, but very few 'macro' lenses are 1:1 these days. For example the well-regarded 50mm f2 Makro Planar ZE/F does 1:2.

The CY 35-70 also has pleasant bokeh and is lighter than both the 50MP and 35/2 Distagon in the ZE/F line. Better corners and less distortion (at 50mm) than the 50MP, factors that assume greater importance on the 36Mp a7r. Slow lenses like this one come alive with good focus aids - EVF, etc.



Jan 30, 2014 at 03:47 AM
Peire
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p.50 #16 · p.50 #16 · C/y 35-70 thread


Some of the recently processed C/Y Vario Sonner 35-70/3.5+NEX5N pics from last autumn:




























Jan 30, 2014 at 05:35 AM
ebrandon
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p.50 #17 · p.50 #17 · C/y 35-70 thread


The threads popping up on FM lately have been really in sync with my A7R experience.

I headed out the door on a gloomy San Francisco day today with a brand new Novoflex CY->NEX adapter and a bag full of CY Zeiss lenses, not least of which the 35-70mm f3.4.

Boy did this lens get along with the A7R! With this excellent adapter it's sharp pretty much edge to edge, and contrasty with seemingly no stray light bouncing around inside.

So here are some shots from today. Love this lens on the A7R.













What happened here?







Jan 30, 2014 at 06:21 AM
philber
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p.50 #18 · p.50 #18 · C/y 35-70 thread


philip_pj wrote:
Let me tell you leo, the a7r loves the 35-70 to death, lol, it brings out all the subtlety of the colour and microncontrast the zoom has in abundance. Best used above 45mm, a little CA appears at the short end with the tough new taskmistress.

While on the subject, what I think the a7r does to most (depressingly many) lenses is this: where lower res sensors flatten out the best each lens has (in the centre regions) so the outer frame and corners look not bad at all, the a7r takes the centre to a higher level (often
...Show more

I respectfully beg to differ. The A7R, with its great resolution, also shows which lenses are richer in detail than others. While the 35-70 does indeed score well on color, contrast and sharpness, I have always found it quite weak on detail. The picture of the bridge does confirm my impression, though a lens shouldn't be judged on one picture alone, where PP might be the cause.



Jan 30, 2014 at 10:39 AM
leo11877
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p.50 #19 · p.50 #19 · C/y 35-70 thread


philber wrote:
I respectfully beg to differ. The A7R, with its great resolution, also shows which lenses are richer in detail than others. While the 35-70 does indeed score well on color, contrast and sharpness, I have always found it quite weak on detail. The picture of the bridge does confirm my impression, though a lens shouldn't be judged on one picture alone, where PP might be the cause.


The previous pages have enough sharp images.



Jan 31, 2014 at 12:33 AM
ebrandon
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p.50 #20 · p.50 #20 · C/y 35-70 thread


philber wrote:
I respectfully beg to differ. The A7R, with its great resolution, also shows which lenses are richer in detail than others. While the 35-70 does indeed score well on color, contrast and sharpness, I have always found it quite weak on detail. The picture of the bridge does confirm my impression, though a lens shouldn't be judged on one picture alone, where PP might be the cause.


I have a whole other thread dedicated to how my A7R pictures are looking soft when downscaled for the web. http://www.fredmiranda.com/forum/topic/1270284

Perhaps this version of the bridge picture with a little post-downscaling sharpening will give you more faith in the 35-70mm?








Jan 31, 2014 at 01:14 AM
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