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torbod
Joined: 31 Jan 2010 Posts: 379 Location: Sweden
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Posted: Tue Aug 16, 2011 10:12 pm Post subject: ISCO Göttingen Westromat 35/2.8 EDIXA |
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torbod wrote:
Some snapshots from a vintage ISCO Göttingen Edixa 35/2.8 Westromat in Zebra outfit I bought the other day in M42 mount.
The images are mostly boring snapshots, but I'd like to share some results with this lens. It is hard to believe how creamy the bokeh is, and it is only 35mm. It almost feels like I have a FF sensor now since the background is more blurred than I'm used to on APS-C. The performance is quite mediocre at 2.8 in terms of sharpness and ghosting, but it behaves very good from f4 where I tend to use it mostly. I toss in some comparison shots with the famous Flektogon 35/2.4 MC at similar f-stop.
I'm also happy to conclude that the CA and PF performance of the Westromat is even better than the already good Flektogon.
All shots between f/2.8 and 4.
Over sharpened (edge halos) but that's not what is important here...
This is not sharp due to hand shake, but look at the focus transition instead.
Sweet eyes...
Bokeh shots, first @ f2.8. As can be seen, ghosting is quite severe, but bokeh is really nice, like a painting.
Now @f/4. Nice and round highlight rings despite stopping down with only 5 blades in the iris. The hand painted texture from f/2.8 is more or less gone, but the overall appearance is very nice.
Now really unscientific bokeh comparison with Flektogon.
First Flek @f/4. E.g. look at the Ford sign or green wall at far back/right.
Now ISCO @f/4 focused approximately at the same distance
I have sen that the ISCO is much more creamy/blurry at f/4 than the Flek is even wide open.
Now sharpness/contrast comparison with Flektogon (infinity focus).
First Flek @f/4
Now ISCO @f/4
No big issues here, quite similar results on corner/center sharpness, contrast etc. The Westramat seems a tad wider.
Comment on that? _________________
For Sale or Trade: Pick from the list below.
Manual Lenses: CV 15 4.5 | MIR-20H 20 3.5 | Elmarit-R 28 2.8 | Flektogon MC 35 2.4 | S-M-C Tak 50 1.4 | Rollei 50 1.8 HFT | Helios 44-3 MC 58 2 | MC ROKKOR-X 58 1.2 | MacroPlanar 60 2.8 | Vega-12b 90 2.8 | Tamron 52B 90 2.5 | CZJ 135 3.5 | Jupiter-21A 200 4 | Tair-3s 300 4.5 | KOHBEPTEP K-1 | Takumar x2 |
Camera: Sony Nex 5N |
Last edited by torbod on Mon Nov 07, 2011 10:29 pm; edited 1 time in total |
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Orio
Joined: 24 Feb 2007 Posts: 29545 Location: West Emilia
Expire: 2012-12-04
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Posted: Sun Sep 25, 2011 5:03 pm Post subject: |
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Orio wrote:
A pity that this thread was left unanswered. Really nice and surprising samples from this lens! _________________ Orio, Administrator
T*
NE CEDE MALIS AUDENTIOR ITO
Ferrania film is reborn! http://www.filmferrania.it/
Support the Ornano film chemicals company and help them survive!
http://forum.mflenses.com/ornano-chemical-products-t55525.html |
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Hari
Joined: 29 Nov 2009 Posts: 1790
Expire: 2015-05-27
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Posted: Sun Sep 25, 2011 6:23 pm Post subject: |
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Hari wrote:
Orio wrote: |
A pity that this thread was left unanswered. Really nice and surprising samples from this lens! |
+10!
#2 and #3 are _________________
Analogue Rangefinders: Leica M5, Leica M6 Titanium classic 0.72, Leica M7 0.58, Leica M7 0.85
Digital Rangefinder: Leica M9, Leica Monochrom, Leica M240
SLR: Leica R3 electronic, Canon AE1P
DSLR: Canon 5D MK2
M mount Lenses: Super-Wide Heliar 15/f4.5 ASPH. + Leica 24/f3.8 ASPH + Leica 28/f2 ASPH. + Leica 35/f1.4 ASPH. FLE + Leica Noctilux 50/f0.95 + Leica Noctilux 50/f1 + Canon 50/f1.2 LTM + Leica 50/f1.4 ASPH. + Leica 50/f1.5 + Zeiss ZM Sonnar 50/f1.5 + Leica APO Summicron 50/f2 + Leica Summitar 50/f2 + Leica Rigid Summicron 50/f2 + Zeiss ZM Planar 50/f2 + Leica 50/f2.8 E39 + Leica 75/f1.4 + Leica APO 75/f2 ASPH. + Voigtlander 75/f2.5 + Leica Summarex 85/f1.5 + Leica APO 90/f2 ASPH. + Leica 90/f2 E55 + Leica 90/f2.8 + Leica APO 135/f3.4
Leica R mount Lenses: Leica-R 60/2.8 E55 + Leica-R 80/1.4 E67 + Leica-R 180/4
EF mount Lenses: Canon 50/1.8 II
M42 mount Lenses: Too many
My pictures: http://www.flickr.com/photos/dementedjesus/ |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Mon Sep 26, 2011 12:17 am Post subject: |
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woodrim wrote:
I'm guessing the ISCO infinity is at a longer distance than the Flek, thus the better bokeh in the first comparison set. How does MFD compare? _________________ Regards,
Woodrim |
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IAZA
Joined: 16 Apr 2010 Posts: 2587 Location: Indonesia
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Posted: Mon Sep 26, 2011 1:59 am Post subject: |
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IAZA wrote:
I missed this topic.
woodrim wrote: |
I'm guessing the ISCO infinity is at a longer distance than the Flek, thus the better bokeh in the first comparison set. How does MFD compare? |
+1 I would like to see comparison in closest distance too
I have Isco westrocolor 50/1,9, it looks has same character with this lens _________________ nex5, Olympus EPM1, yashica half 14, Canon eos 650 want to see samples of mine? please click My lenses
and My gallery
~Suat~ |
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torbod
Joined: 31 Jan 2010 Posts: 379 Location: Sweden
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Posted: Mon Nov 07, 2011 9:55 pm Post subject: |
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torbod wrote:
I have missed your replies on this. Unfortunately I have sold the lens, but let med recall my findings from old brain cache.
woodrim wrote: |
I'm guessing the ISCO infinity is at a longer distance than the Flek, thus the better bokeh in the first comparison set. How does MFD compare? |
I have not focused with infinity in any image, rather by eyesight with both lenses. But at the infinity shot samples I think both hit the infinity stop. From what I remember both had similar and quite good infinity calibration.
As for the first bokeh comparison shot, non is of course focused to infinity. Focus is set on portrait distance, approximately 1 meter, so I don't really understand you comment?
So, how can I know both are focused at the same distance. Well it was a part of my testing when I bought the lens. As I said, non scientific, but this is how it was:
The guy (seller) in the image is leaning against my car. I stood at the front door in both shots and to reproduce as identical focusing distances as possible (since he had to leave suddenly). I set the focus at the rear part of the car where he stood. So I would assume a maximum focusing difference of 20 cm. 20 cm can be much for OOF rendering at MFD, but the focus is set far from that. The results are representative for the difference, I promise. I have done a lot of A/B switching with these lenses in test shooting since I was so impressed with results I got on an APS-C sensor. As I wrote, the bokeh was blurrier at f/4 with the ISCO than the Flek was at wide open. I have not experienced anything like it before, especially not with anything as wide as 35mm. I can post some more images with it if anyone is interested, but I have no more A/B comparison shots.
Cheers
T _________________
For Sale or Trade: Pick from the list below.
Manual Lenses: CV 15 4.5 | MIR-20H 20 3.5 | Elmarit-R 28 2.8 | Flektogon MC 35 2.4 | S-M-C Tak 50 1.4 | Rollei 50 1.8 HFT | Helios 44-3 MC 58 2 | MC ROKKOR-X 58 1.2 | MacroPlanar 60 2.8 | Vega-12b 90 2.8 | Tamron 52B 90 2.5 | CZJ 135 3.5 | Jupiter-21A 200 4 | Tair-3s 300 4.5 | KOHBEPTEP K-1 | Takumar x2 |
Camera: Sony Nex 5N |
Last edited by torbod on Mon Nov 07, 2011 10:27 pm; edited 2 times in total |
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torbod
Joined: 31 Jan 2010 Posts: 379 Location: Sweden
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Posted: Mon Nov 07, 2011 9:58 pm Post subject: |
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torbod wrote:
IAZA wrote: |
I missed this topic.
woodrim wrote: |
I'm guessing the ISCO infinity is at a longer distance than the Flek, thus the better bokeh in the first comparison set. How does MFD compare? |
+1 I would like to see comparison in closest distance too
I have Isco westrocolor 50/1,9, it looks has same character with this lens |
Look at my reply above, bots lenses are focused at close distance, not MFD but 1 meter or so.
Cheers
/T _________________
For Sale or Trade: Pick from the list below.
Manual Lenses: CV 15 4.5 | MIR-20H 20 3.5 | Elmarit-R 28 2.8 | Flektogon MC 35 2.4 | S-M-C Tak 50 1.4 | Rollei 50 1.8 HFT | Helios 44-3 MC 58 2 | MC ROKKOR-X 58 1.2 | MacroPlanar 60 2.8 | Vega-12b 90 2.8 | Tamron 52B 90 2.5 | CZJ 135 3.5 | Jupiter-21A 200 4 | Tair-3s 300 4.5 | KOHBEPTEP K-1 | Takumar x2 |
Camera: Sony Nex 5N |
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