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voigtlander 35/2.5 CV VS canon 35/2
Old 11-01-2005   #1
caila77
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voigtlander 35/2.5 CV VS canon 35/2

One month ago I bought a canon 35/2 ltm and I decide to compare it with my 35/2.5 color skopar. First I'd like to notice that canon is older than voigtlander (about 50 years) and this is very important to consider this two lenses.
I compared the lenses in BW (tri-x 220 iso and xp2 at 400 iso), on slide (agfa rsx and konica centuria, both 100 iso) and on a roll of colour print (economicALLY PERUTZ 200 ISO). Shots taken with manfrotto tripod and with the same camera (bessa-r) and I used my lunasixpro for light. Also, obvoiusly, the same shutter speed and f for the same photos.
Canon is well made, very compact and heavier than the voigtlander, so the impression of solidity is better for my parameters, and canon is faster too.
Now I think thath I can say:
At 2.8 voigtlander is better for contranst and is sharper than canon
At 5.6 /8/11 the lens are very similar but canon colours is better to my eyes (more saturation of colours).
Also I can tell to you thath in the low light voigtlander is better with more details at the same speed/f.

If someone had some observations I'll appreciate!
(sorry for my poor english)
regards
caila
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Old 11-02-2005   #2
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Thanks for sharing caila, your English is fine. Welcome to RFF.

Interesting that the CV 35 holds up so well against the Canon 35/2 as the latter is one of the best 35mm lenses from a generation or so ago. If you can it would be interesting to see some of the photographs you used in your comparison.
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Old 11-02-2005   #3
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I'm going to scan it rover
thanks











Quote:
Originally Posted by rover
Thanks for sharing caila, your English is fine. Welcome to RFF.

Interesting that the CV 35 holds up so well against the Canon 35/2 as the latter is one of the best 35mm lenses from a generation or so ago. If you can it would be interesting to see some of the photographs you used in your comparison.
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Old 11-02-2005   #4
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i am hard torn between getting one of those two
keenly expecting the scans

cheers

lee
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Old 11-02-2005   #5
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there is no doubt that the cv lens is very sharp and much more contrasty than the canon.
but to my eyes the photos taken with it are more harsh and clinical looking also.

joe
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Old 11-02-2005   #6
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......taken with it.... with canon or voigtlander?..., I don't understand




[quote=
but to my eyes the photos taken with it are more harsh and clinical looking also.

joe[/QUOTE]
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Old 11-02-2005   #7
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I believe that joe is refering to the CV in that statement.
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Old 11-02-2005   #8
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sorry, the photos taken with the cv 35 are more harsh looking than the photos taken with the canon 35.
that would be a side by side comparison, just looking at pics from the cv lens alone they just look very contrasty.
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Old 11-02-2005   #9
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Quote:
Originally Posted by rover
I believe that joe is refering to the CV in that statement.

that's right I think so!
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Old 11-02-2005   #10
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the colour redention of cv is not good as the one of canon and the colours saturation of canon appear to be better at my eyes




Quote:
Originally Posted by back alley
sorry, the photos taken with the cv 35 are more harsh looking than the photos taken with the canon 35.
that would be a side by side comparison, just looking at pics from the cv lens alone they just look very contrasty.
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Old 11-02-2005   #11
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i only shoot black & white, no idea what either lens does with colour.
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Old 11-02-2005   #12
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tomorrow I'll post some scans from my latest slide










Quote:
Originally Posted by back alley
i only shoot black & white, no idea what either lens does with colour.
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Old 11-02-2005   #13
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I look foeward to the scans too. Welcome to the forum Caila!

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Old 11-04-2005   #14
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Sorry, I'm late but in a few day I'll post them
Caila
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Old 11-06-2005   #15
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Ok, This is some shot taken with CV and Canon on centuria 100 slide.
I missed another observation: canon tend to flare more than CV (obviously for the age of canon)
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Old 11-06-2005   #16
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other photos
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Old 11-07-2005   #17
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I waiting for answer
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Old 11-08-2005   #18
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Are these full frame shots caila? It does appear that in two of the scenes you were shooting into the sun and both lenses suffered from flare. The third, the logs under the trees seem to be a crop of an original.
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Old 11-08-2005   #19
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[
only the first two couple images was cropped, the last two photos are original.
in the first comparison you can see that cv is better in the low light. flare is a little big problem for 35/2 canon (the age is the age)
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Old 11-08-2005   #20
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Hi Caila,
I've made a similar observation with the Canon 2/35 against the CV 1.7/35. The 1.7/35 is flare-prone as well! (high speed lens disease)
The CV is sharper but the Canon has better colors and contrast.
It's amazing that with my travel kit, the Canon is better supplement (similar picture characteristics) to the (very sharp) CV 21 or 25mm than the CV 1.7/35.
But I have to admit that at f/2 the Canon is poorer than the CV at f/1.7 and has a lot of light-falloff (probably due to its small size). So if possible use the Canon at f/5.6-8. The CV can be used at f/4-8 in the same matter.
pictures comparison here: http://www.taunusreiter.de/Cameras/C...ANON_RF_2-35mm

cheers, Frank
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Old 11-08-2005   #21
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I also noticed on many of my early photos taken with my 35 CV Ultron that the lens is very prone to flare; when using relatively modern Leica glass this isn't much of a concern, so I hadn't given it much thought back then.

Since then I've put a B+W MRC UV filter on it, and it seems to have improved the flare issues a lot; they haven't been cured, but I've seen a noticeable improvement.
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Old 11-08-2005   #22
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Thanks sonnar, very nice comment.
this 2 photos is a flare test: canon tents to flare more easilier than CV. And you are right whe say that canon is poor at f2
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Old 11-09-2005   #23
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Those are *miserable* scans ...If one is forced to share bad evidence, one might at least look at one's own evidence before drawing conclusions for others!

The best of this lot (last pile of logs) demonstrates Canon flaring substantially LESS than the CV ... the first/worst scans (lawn & buildings and little person) do too. (note blown highlights in grass).

The rows of trees DO show the Canon flaring more, as one would expect from a lens that's almost a full stop faster (f2 Vs 2.5 is almost f2 Vs 2.8). That they're both stopped down is irrelevant to the test...Canon's facing the sun with much more glass because it's a faster lens.

My wild guess is that the 35/2 Canon would blow the 35/1.7 Ultron away
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Old 11-10-2005   #24
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That's right, the scans are miserable (I've also a bigger scan at 300 dpi if someone want it)

In the photo with buiding you can't valuate flaring but only colour yield and in the last couple of photo

Why testing the lenses at stopped down is irrilevant?
I use both also at f8,f11,f16,f22 and the flare at f 11 is rilevant for my use
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Old 11-10-2005   #25
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Stopped down does show stopped-down performance, you're right. If you have to shoot into the sun at f8, the CV's better for the purpose (I'm assuming you used shades on both lenses because that would make a big difference).

But I don't think there's a basis to say the 2.5 lens is less prone to flare than the 2.0 because of modern design, I think it's just as likely to be the size of the front element. As well, there's the question of condition when testing a 45 year old lens, though arguably in several of those shots the older lens may have flared less.

Comparing an old Canon 2.8 and new CV 2.5 would be interesting.

And it'd also be interesting to see the Ultron compared to the Canon f2

BTW, I apologize for my aggressive tone in the previous post. Not gentlemanly, sorry.
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