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Archive 2012 · Medium format lenses converted on 35mm digitals.

  
 
Alf Beharie
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p.8 #1 · p.8 #1 · Medium format lenses converted on 35mm digitals.


contas wrote:
We do know EF/-s protocols are the same from SA , so I decided to use the AF confirm chip for Canon on my SA mount.Before doing it, I did a large search on the internet , but the result was absolute negative, many guys confirmed that can't do such thing, due to of different mount throat radiuses between the two.
OK, I did it and get it now.Is that easy?.No, it is a big NO here.Before got the last success, I broke 3 chips, used 2 sets of epoxy glue and fortunately didn't get a single electric shortcut, that could
...Show more


Blimey, I applaud your efforts...rather you than me!



Apr 01, 2013 at 10:17 PM
contas
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p.8 #2 · p.8 #2 · Medium format lenses converted on 35mm digitals.


Thanks Alf Beharie, if I can do so do you.Here is it look like.
http://farm9.staticflickr.com/8101/8611752217_076b1a4d6b_c.jpg



Apr 02, 2013 at 12:17 AM
contas
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p.8 #3 · p.8 #3 · Medium format lenses converted on 35mm digitals.


Mir 45mm ,@8.0 on SD1 Merrill Iso 100 1/200s.This lens grasps tiny patterns of water wave and cloud, never let me disappointed.
http://farm9.staticflickr.com/8391/8620026645_77bb623c33_h.jpg



Apr 04, 2013 at 09:26 PM
contas
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p.8 #4 · p.8 #4 · Medium format lenses converted on 35mm digitals.


River boat-house and fish-farm/ sea-shore city in background.
Mir 45mm, @f/8.0 on Sigma SD1 Merrill Iso 100 1/640s.
http://farm9.staticflickr.com/8385/8620259737_78ecdb93a0_h.jpg



Apr 04, 2013 at 11:42 PM
igmolinav
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p.8 #5 · p.8 #5 · Medium format lenses converted on 35mm digitals.


Hi,

Thank you for this nice and interesting thread : ) !!!

Kind regards,

igmolinav : ) !!!



Apr 08, 2013 at 01:24 PM
contas
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p.8 #6 · p.8 #6 · Medium format lenses converted on 35mm digitals.


Thanks Igmolinav, life is real nice itself, we are all blessed to live and see it.



Apr 08, 2013 at 09:11 PM
contas
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p.8 #7 · p.8 #7 · Medium format lenses converted on 35mm digitals.


Apo-Makro-Planar, @4.0 on Sigma SD1 Merrill Iso 100 1/2000s.
Nice wild flower found on the road, I drove by and saw it, stoped the car, drove back then shot it.

http://farm9.staticflickr.com/8531/8650213855_8993b04c05_h.jpg


Edited on Apr 15, 2013 at 12:01 AM · View previous versions



Apr 14, 2013 at 11:38 PM
contas
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p.8 #8 · p.8 #8 · Medium format lenses converted on 35mm digitals.


Another wild , the same combo at 1/320s.
http://farm9.staticflickr.com/8530/8650229487_33be735c58_k.jpg



Apr 14, 2013 at 11:44 PM
contas
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p.8 #9 · p.8 #9 · Medium format lenses converted on 35mm digitals.


A crouching dragon.
The same combo at 1/320s .
http://farm9.staticflickr.com/8538/8651341056_19b0c03c4c_h.jpg



Apr 14, 2013 at 11:52 PM
e6filmuser
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p.8 #10 · p.8 #10 · Medium format lenses converted on 35mm digitals.


Nice yellow flower. My personal preference would be to have used f8 or f11 to show lots of petal texture.

Harold



Apr 15, 2013 at 01:59 AM
contas
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p.8 #11 · p.8 #11 · Medium format lenses converted on 35mm digitals.


Thanks Harold, there is an untold rule for flower, lady and pet that I use the lens as much bokeh as possible .So only the good lenses can depict the details in the thin DOF.Using deep DOF by f/8.0 or higher the whole scene appears whithin the frame, causing a distraction from the main topic.IMHO.


Apr 15, 2013 at 04:33 AM
R.Young
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p.8 #12 · p.8 #12 · Medium format lenses converted on 35mm digitals.


I finally got to shoot with my Hasselblad-EF tilt adapter. 80mm f/2.8 Planar on 5D2:


Hackney Farm by Rob.Young, on Flickr



Apr 15, 2013 at 04:38 AM
e6filmuser
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p.8 #13 · p.8 #13 · Medium format lenses converted on 35mm digitals.


contas wrote:
Thanks Harold, there is an untold rule for flower, lady and pet that I use the lens as much bokeh as possible .So only the good lenses can depict the details in the thin DOF.Using deep DOF by f/8.0 or higher the whole scene appears whithin the frame, causing a distraction from the main topic.IMHO.


Fair enough. I have never bothered much with bokeh, although I can think of subject material for which I might.

Harold



Apr 15, 2013 at 04:43 AM
contas
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p.8 #14 · p.8 #14 · Medium format lenses converted on 35mm digitals.


As I received some questions about Iris controling of Apo-Makro-Planar on Sigma SD1 Merrill, I did a VC on how it works.




Apr 22, 2013 at 03:13 AM
kkibrisli
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p.8 #15 · p.8 #15 · Medium format lenses converted on 35mm digitals.


Hi contas, I liked your pictures so much that I am considering to get s SD1 Merrill myself. YGM.


Apr 23, 2013 at 05:36 PM
contas
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p.8 #16 · p.8 #16 · Medium format lenses converted on 35mm digitals.


Thanks thminhduc and kkibrisli.
Before you buy a Sigma SD1 you must plan which type of photography, then the suitable lens.The SD1 owns an excellent sensor, it out resolves Sigma and Canon lenses, some others like Zeiss, Leica, CZJ and Russian Zeiss copies could match totally or partially.The best mustbe MF( medium format)Zeiss.Doing a conversion isn't an easy task as you might see.
I am doing it, so I know how risk it is and am doing it not alone, around me there are lathe mechaniks, electroniks, lens part retailers, who knows their jobs brilliantly, that I can count on, but they don't know my job in the whole - that's a big secret.So be considered before you take a serious jump.I could share some of mine for courageous people who can take their own risk as a reward.



Apr 23, 2013 at 09:10 PM
RustyBug
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p.8 #17 · p.8 #17 · Medium format lenses converted on 35mm digitals.


Of course, you can still use the excellent optics via adapter (much simpler than conversion). You'll typically have to use them in stopped down mode (guessing same for Merrill) and won't have shutter priority or program mode. Manual and Aperture mode typically work fine.

Then if you REALLY REALLY want to go for a conversion as contas has ... go for it. Me, I'm too chicken to try such a conversion, but I still use MF glass on DSLR with regularity.



Apr 23, 2013 at 09:33 PM
Mescalamba
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p.8 #18 · p.8 #18 · Medium format lenses converted on 35mm digitals.


Im pretty sure some regular C/Y lens can feed SD1M too. Or Leica R. But either way, its going to be quite expensive, cause that sensor is incredibly demanding.

But, for example 35/1.4 Sigma was make for SD1M and now there will be 18-35/1.8 which again is made for SD1M.

Must say that resolution from SD1M photos always make me want to have one. Considering I shoot mostly flowers, I might get one.. one day.



Apr 23, 2013 at 10:07 PM
contas
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p.8 #19 · p.8 #19 · Medium format lenses converted on 35mm digitals.


For SD1 there no easy meal like for Canon, Nikon, Nex.A closest adaptor is Kipon-EOS with mechanical iris:
http://www.ebay.com/itm/Kipon-Contax-645-mount-lens-to-Canon-EOS-EF-Adapter-for-5D-II-III-7D-60D-600D-/350568187636?pt=US_Lens_Adapters_Mounts_Tubes&hash=item519f7e06f4
You can replace EF mount by M42-SA mount:
http://www.ebay.com/itm/M42-Mount-Lens-to-Sigma-SA-SD-Mount-Adapter-For-SD7-SD9-SD10-SD14-SD15-/271191801451?pt=US_Lens_Adapters_Mounts_Tubes&hash=item3f244a7e6b
Usually m42-SA mount is less 0.5mm than EF mount so you need to add a shim.Further more if you want to have a AF confirm you can follow my instructions on the top of this page.



Apr 23, 2013 at 10:34 PM
inglis
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p.8 #20 · p.8 #20 · Medium format lenses converted on 35mm digitals.


This is all so interesting about the possibilities and difficulties with the SD1M
and also all the MF stuff. Thanks all!

By the way, can anyone recommend sharpening ballpark settings for lightroom to begin with?
I see that many have discussed photoshop settings on various threads.
Am starting to experiment and find that the settings I normally use don't seem sharp enough.
Took the plunge with a Mamiya 120 macro and feel like I am sinking into a foreign sea.

Any other suggestions for simple minded beginners?



Apr 24, 2013 at 11:33 AM
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