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cilinderman
Joined: 13 Dec 2008
Posts: 317
Location: Canillo, Andorra
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 Posted: Wed Mar 18, 2009 9:54 pm Post subject: Olympus 21/3.5 on a 5D |
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cilinderman wrote:
Hi everyone!
Does this lens needs any modification on a 5D? I've testing it during some days and it's not as sharp as supposed to be on infinity... Could that be an adapter issue? Lens model is 116589 Olympus OM-SYSTEM ZUIKO MC AUTO-W 1:3.5 f=21mm.
Tomorrow, if possible I'll show some photos and crops comparing it to the Distagon 28/2.8 at "infinity" (mirror issue  ).
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5D & Fujica ST801|| Carl Zeiss Planar MM 50/1.7 (departed for resurrection) || Carl Zeiss Distagon 28/2.8 AEJ || Meyer Orestor "Pentacon" (relabeled) 135/2.8 || Carl Zeiss Jena 135/3.5 || Carl Zeiss Sonnar MM 85/2.8 || Carl Zeiss Flektogon MC "White" 35/2.4 || Olympus Zuiko OM MC 21/3.5 || Super Takumar 55/1.8 || Rollei Planar HFT 50/1.8 || "The three tenors" from Orio (Nikkor pre-AI 85/1.8, 135/3.5 & 105/2.5) |
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F16SUNSHINE
Joined: 20 Aug 2007
Posts: 5486
Location: Left Coast
Expire: 2011-11-18
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| Posted: Wed Mar 18, 2009 10:05 pm Post subject: Re: Olympus 21/3.5 on a 5D |
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F16SUNSHINE wrote:
| cilinderman wrote: |
| Could that be an adapter issue? |
Yes it sounds like it to me.
If the images from closer distance are sharp on focus point then......for sure it is an adapter that hurts infinity.
I did buy one adapter from Roxsen for OM-EOS. It was to thick. Probably it is the same problem for you.
Happypage HK has the best adapters at the moment of HK/China ebay sellers.
I don't know maybe Alex has an OM-Eos adapter also.
Cheers
Andy
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cilinderman
Joined: 13 Dec 2008
Posts: 317
Location: Canillo, Andorra
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| Posted: Wed Mar 18, 2009 10:09 pm Post subject: |
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cilinderman wrote:
What would be the correct thickness?
_________________
5D & Fujica ST801|| Carl Zeiss Planar MM 50/1.7 (departed for resurrection) || Carl Zeiss Distagon 28/2.8 AEJ || Meyer Orestor "Pentacon" (relabeled) 135/2.8 || Carl Zeiss Jena 135/3.5 || Carl Zeiss Sonnar MM 85/2.8 || Carl Zeiss Flektogon MC "White" 35/2.4 || Olympus Zuiko OM MC 21/3.5 || Super Takumar 55/1.8 || Rollei Planar HFT 50/1.8 || "The three tenors" from Orio (Nikkor pre-AI 85/1.8, 135/3.5 & 105/2.5) |
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cilinderman
Joined: 13 Dec 2008
Posts: 317
Location: Canillo, Andorra
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| Posted: Thu Mar 19, 2009 9:04 am Post subject: |
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cilinderman wrote:
Mmmm could not compare with Distagon because I lack of adapter but I shot these at F11, on 3m mark. The DOF just goes from 1m to past infinity.
These are the results, what do you think? Is this lens well focused on infinity?
Whole picture (bilineal resize)
Crop center
Crop center left
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5D & Fujica ST801|| Carl Zeiss Planar MM 50/1.7 (departed for resurrection) || Carl Zeiss Distagon 28/2.8 AEJ || Meyer Orestor "Pentacon" (relabeled) 135/2.8 || Carl Zeiss Jena 135/3.5 || Carl Zeiss Sonnar MM 85/2.8 || Carl Zeiss Flektogon MC "White" 35/2.4 || Olympus Zuiko OM MC 21/3.5 || Super Takumar 55/1.8 || Rollei Planar HFT 50/1.8 || "The three tenors" from Orio (Nikkor pre-AI 85/1.8, 135/3.5 & 105/2.5) |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Thu Mar 19, 2009 9:21 am Post subject: |
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Orio wrote:
I would have to see a 100% crop of the foreground to be completely sure, but it looks like your lens is not focused to infinity.
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Orio, Administrator
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cilinderman
Joined: 13 Dec 2008
Posts: 317
Location: Canillo, Andorra
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| Posted: Thu Mar 19, 2009 10:30 am Post subject: |
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cilinderman wrote:
Where can I post a full resolution photo?
_________________
5D & Fujica ST801|| Carl Zeiss Planar MM 50/1.7 (departed for resurrection) || Carl Zeiss Distagon 28/2.8 AEJ || Meyer Orestor "Pentacon" (relabeled) 135/2.8 || Carl Zeiss Jena 135/3.5 || Carl Zeiss Sonnar MM 85/2.8 || Carl Zeiss Flektogon MC "White" 35/2.4 || Olympus Zuiko OM MC 21/3.5 || Super Takumar 55/1.8 || Rollei Planar HFT 50/1.8 || "The three tenors" from Orio (Nikkor pre-AI 85/1.8, 135/3.5 & 105/2.5) |
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cilinderman
Joined: 13 Dec 2008
Posts: 317
Location: Canillo, Andorra
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| Posted: Thu Mar 19, 2009 11:01 am Post subject: |
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cilinderman wrote:
Here is the full res pic
http://www5.picturepush.com/photo/a/1504998/img/1504998.jpg
The piture was taken from my balcony so it's like 4 meters to the nearest subject of the picture I think.
_________________
5D & Fujica ST801|| Carl Zeiss Planar MM 50/1.7 (departed for resurrection) || Carl Zeiss Distagon 28/2.8 AEJ || Meyer Orestor "Pentacon" (relabeled) 135/2.8 || Carl Zeiss Jena 135/3.5 || Carl Zeiss Sonnar MM 85/2.8 || Carl Zeiss Flektogon MC "White" 35/2.4 || Olympus Zuiko OM MC 21/3.5 || Super Takumar 55/1.8 || Rollei Planar HFT 50/1.8 || "The three tenors" from Orio (Nikkor pre-AI 85/1.8, 135/3.5 & 105/2.5) |
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YureW
Joined: 12 Feb 2009
Posts: 45
Location: Trieste, Italy
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| Posted: Thu Mar 19, 2009 1:02 pm Post subject: |
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YureW wrote:
As for me, the lens doesn't focus at infinity.
The closer object in the picture is the roof in the lower left corner, and it seems sharper than everything else. |
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Spotmatic
Joined: 18 Aug 2008
Posts: 4045
Location: Netherlands
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| Posted: Thu Mar 19, 2009 1:07 pm Post subject: |
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Spotmatic wrote:
What strikes me the most is that it does not look better than the Vivitar 20mm f/3.8 I used on my Canon... Not even on closer distances.
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Peter - Moderator
Pentax K-5 + Pentax 645 + Canon 5D + Bessa RF 10,5cm Heliar, and a 'little' bag full of MF lenses. The lens list is * here *.
My fast 80s: Asahi-Kogaku Takumar 83mm f/1.9 - Super-Takumar 85mm f/1.9 - FA 77mm f/1.8 Limited - Cyclop 85/1.5 (Helios-40 innards) - Komura 80mm f/1.8 - Meyer Görlitz Primoplan 7,5cm 1:1.9 - Carl Zeiss Jena 80mm f/1.8 Pancolar - Canon 85mm f/1.8 S.S.C. - Canon 85mm f/1.2 S.S.C. Aspherical |
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cilinderman
Joined: 13 Dec 2008
Posts: 317
Location: Canillo, Andorra
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| Posted: Thu Mar 19, 2009 1:46 pm Post subject: |
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cilinderman wrote:
I've been trying and if I put the lens handheld on the camera without the adapter and focus to infinity I go past infinity. If I move the lens forward then I get again something like infinity focus, but it's pretty damn hard to get infinity.
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5D & Fujica ST801|| Carl Zeiss Planar MM 50/1.7 (departed for resurrection) || Carl Zeiss Distagon 28/2.8 AEJ || Meyer Orestor "Pentacon" (relabeled) 135/2.8 || Carl Zeiss Jena 135/3.5 || Carl Zeiss Sonnar MM 85/2.8 || Carl Zeiss Flektogon MC "White" 35/2.4 || Olympus Zuiko OM MC 21/3.5 || Super Takumar 55/1.8 || Rollei Planar HFT 50/1.8 || "The three tenors" from Orio (Nikkor pre-AI 85/1.8, 135/3.5 & 105/2.5) |
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cilinderman
Joined: 13 Dec 2008
Posts: 317
Location: Canillo, Andorra
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| Posted: Thu Mar 19, 2009 6:51 pm Post subject: |
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cilinderman wrote:
Well, I've been reading kind of everything I could find on adapter and infinity focus and I think that my ultimate try is to shave a little bit the adapter (in fact, it's quite hard to mount it, maybe because of thickness) and try to achieve infinity or beyond infinty, because with an ultra wide angle is something necessary. Because I only have one OM adapter and one OM lenses I think its worth to try it .
I'll keep you in touch.
P.S: As I read, it's more difficult to achieve infinity with wide angles that with telephoto, so maybe the 2mm adapter are a bit less for ultra wides.
_________________
5D & Fujica ST801|| Carl Zeiss Planar MM 50/1.7 (departed for resurrection) || Carl Zeiss Distagon 28/2.8 AEJ || Meyer Orestor "Pentacon" (relabeled) 135/2.8 || Carl Zeiss Jena 135/3.5 || Carl Zeiss Sonnar MM 85/2.8 || Carl Zeiss Flektogon MC "White" 35/2.4 || Olympus Zuiko OM MC 21/3.5 || Super Takumar 55/1.8 || Rollei Planar HFT 50/1.8 || "The three tenors" from Orio (Nikkor pre-AI 85/1.8, 135/3.5 & 105/2.5) |
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cilinderman
Joined: 13 Dec 2008
Posts: 317
Location: Canillo, Andorra
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| Posted: Fri Mar 20, 2009 1:23 pm Post subject: |
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cilinderman wrote:
Well, finally after shimming the adapter a bit, there wasn't possible to get infinity in focus. I think that maybe my copy is a little bit soft. However with a bit of "incamera" sharpening the things change:
http://www4.picturepush.com/photo/a/1507122/img/1507122.jpg normal
http://www4.picturepush.com/photo/a/1507137/img/1507137.jpg sharp 4 (landscape mode)
http://www2.picturepush.com/photo/a/1507160/img/1507160.jpg sharp 7 (user mode)
What do you think?
_________________
5D & Fujica ST801|| Carl Zeiss Planar MM 50/1.7 (departed for resurrection) || Carl Zeiss Distagon 28/2.8 AEJ || Meyer Orestor "Pentacon" (relabeled) 135/2.8 || Carl Zeiss Jena 135/3.5 || Carl Zeiss Sonnar MM 85/2.8 || Carl Zeiss Flektogon MC "White" 35/2.4 || Olympus Zuiko OM MC 21/3.5 || Super Takumar 55/1.8 || Rollei Planar HFT 50/1.8 || "The three tenors" from Orio (Nikkor pre-AI 85/1.8, 135/3.5 & 105/2.5) |
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