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Archive 2011 · Canon 35mm f2.8 T&S Converted to EOS
  
 
roboticspro
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p.1 #1 · Canon 35mm f2.8 T&S Converted to EOS


Hi,

Still digging into the FD bin for lenses to convert over, and I figured this one would be pretty straight forward. Other than being very careful with measurements (measure twice, cut/mill/turn once...), the toughest part was getting the shift leadscrew out. The endcollar lock screw on the leadscrew had a pretty strong adhesive on the threads, so the solvent of choice was MEK (be careful with that stuff...).

I started out with a backplate thickness of 5.82mm, so I milled it down to 2.50mm, and milled the M42-EOS adapter from 1.42mm to 1.20mm. The .12mm undercut ensures that infinity focus is maintained after heat/pressure bonding with J-B weld between the backplate and lens mount. Also, the joining ring and its' mount needed to be shorted (because of the thinning of the backplate). I "hexed" the joining ring and burnished both female and male threads with a SS radial brush to help reform the threads...it worked perfectly. Everything threaded fine and tightened up very snug. The original spring for the rotation detent was replaced with a re-wound ball-point pen spring, and provides the same holding force as the orginal. The M42-EOS mount has a "holding hole" for it to reside in.

Finished photos will be posted Sunday afternoon, and hopefully some shots also. Last time I used this lens was on a T90, with Kodachrome 25...got to find those slides and get them scanned.





















Edited on Feb 26, 2011 at 09:50 PM · View previous versions



Feb 26, 2011 at 09:45 PM
roboticspro
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p.1 #2 · Canon 35mm f2.8 T&S Converted to EOS


And some more...

















Feb 26, 2011 at 09:45 PM
JimBuchanan
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p.1 #3 · Canon 35mm f2.8 T&S Converted to EOS


Nice job.

After its put together, and if you need to fine tune infinity focus any more, the screws are under the ID ring. Its glued on so you need a "L" shaped blade to loosen lift it off.



Feb 26, 2011 at 10:12 PM
davenfl
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p.1 #4 · Canon 35mm f2.8 T&S Converted to EOS


That's a real quality effort and that is a beauty of a lens. Love to see some photo's and really love to see some scans of those Kodachromes.

Dave



Feb 26, 2011 at 10:26 PM
pengland
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p.1 #5 · Canon 35mm f2.8 T&S Converted to EOS


Edd,

Looks like another tidy job!

Good work!

Nick



Feb 26, 2011 at 10:58 PM
roboticspro
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p.1 #6 · Canon 35mm f2.8 T&S Converted to EOS


Hi Guys,

Thanks for the kind words/comments. I figured that I would share the info here so if anyone else is "itching" to do the conversion, the photos and comments on the process should be helpful. I was checking out some other sites (Manual Focus I think), and a lot of the postings were "teaser" photos of what someone did, to drum up business. They did not answer the "how-to" questions posted as such.

Anyway, time to kick back and watch hockey, another "ExLax for the Mind" passion...

Regards,

Edd

Edited on Feb 27, 2011 at 02:09 PM · View previous versions



Feb 26, 2011 at 11:35 PM
ersatz
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p.1 #7 · Canon 35mm f2.8 T&S Converted to EOS


Impressive conversion. And there's currently a Canon FD TS 35mm 2.8 SSC lens on ebay. Interested in making another adapter?


Feb 27, 2011 at 06:26 AM
 

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roboticspro
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p.1 #8 · Canon 35mm f2.8 T&S Converted to EOS


Hi,

It's finished and working well, complete with focus confirm chip (max f-stop, focal length, and zeroed-in MA) made by EMF. I am going to take a hike later, after the storm here for some better attempts at snow scenes.

Jim: The measurements/cuts worked for infinity, as I used LiveFocus on the moon late last night and it focused on the mark, but thank you for the heads-up advice.

Thanks for looking and your comments...but no, I won't be doing another one of these anytime soon .

Regards,

Edd






















Feb 27, 2011 at 02:19 PM
roboticspro
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p.1 #9 · Canon 35mm f2.8 T&S Converted to EOS


And some quick test shots...




  Canon EOS 5D Mark II    35mm    f/2.8    1/1600s    800 ISO    0.0 EV  






  Canon EOS 5D Mark II    35mm    f/2.8    1/1000s    800 ISO    0.0 EV  




Feb 27, 2011 at 02:21 PM
ZoneV
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p.1 #10 · Canon 35mm f2.8 T&S Converted to EOS


Congratulation!

Looks like a well done conversion job. And like a very interessting lens :-)
Sometimes I think about bidding more on such a lens - but at the moment I more on the DIY tilt lens trip. Next step would probably be a tilt/shift lens out of an russian 45 mm lens for 24x36 DSLR - with better mechanics than my first tilt lenses.

I suppose crop EOS DSLR cameras with their flash would have problems with their flash housing? On one of my Rebel XT I saw this away :-)



Feb 28, 2011 at 01:16 PM
jcolwell
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p.1 #11 · Canon 35mm f2.8 T&S Converted to EOS


Nice work!


Feb 28, 2011 at 02:28 PM
helimat
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p.1 #12 · Canon 35mm f2.8 T&S Converted to EOS


Great job.


Feb 28, 2011 at 07:31 PM
roboticspro
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p.1 #13 · Canon 35mm f2.8 T&S Converted to EOS


Hi,

THank you Dave, Nick, Markus, Jim, and Helimat...these conversions are fun and addictive. I need to get the right subject matter for the tilt to really shine through, not just "hey, isn't this cool". I am going to try the Kenko 1.4x DGX on it that Rich Swanner is always singing praises about. His hummingbird photos with it (or without it...) are outstanding, period.

Jim: I love the new shift lens you have posted about...a trend is starting for sure.

Regards,

Edd



Feb 28, 2011 at 11:06 PM





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