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Thread started 02 Mar 2011 (Wednesday) 14:22
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It's finally here, Ontarian's glassless FD-EOS converter for 600 and 800mm FD lenses.

 
arentol
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Mar 02, 2011 14:22 |  #1

For those not already aware, about a year ago Ed Mika (Ontarian on Flikr) began development on a new glassless FD-EOS adapter (with AF confirm) that allows focus to infinity on 600mm and 800mm FD lenses, and longer focus than any other glassless converter on other lenses (300 feet on 400mm FD, 38 feet on 200mm):

http://www.flickr.com …n/sets/72157624​929098837/ (external link)

After a few different attempts he has finally finalized the design and first production run. They are now for sale on Ebay for $135:

http://cgi.ebay.ca …K:MESELX:IT#ht_​611wt_1141 (external link)

To use it you do have to mod your lens, but it is supposed to be a very simple and easily reversible mod (Just remove a screw or something).

I just placed my order for use with the 600mm FD I picked up last year. If you have a longer FD lens lying around you should look into getting one yourself.


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V-Wiz
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Mar 02, 2011 15:54 |  #2

subscribed.


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themadman
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Mar 02, 2011 18:45 |  #3

Wow... thats cool!


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drama
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Mar 02, 2011 21:11 |  #4

Very Interesting


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https://photography-on-the.net …/showthread.php​?t=1023198

  
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lannes
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May 22, 2011 18:04 |  #5

I got one of ontarian fd/eos adaptors, it works well with telephoto fd lenses like the 500mm f/5.6 mirror. It nearly focuses to infinity but requires +20 micro adjustment.

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MOkoFOko
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May 23, 2011 01:59 |  #6

Hmmm... too bad those 600 and 800mm L lenses still run $1000-$3000...


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Down_Shift
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May 23, 2011 10:10 |  #7

lannes wrote in post #12458936 (external link)
I got one of ontarian fd/eos adaptors, it works well with telephoto fd lenses like the 500mm f/5.6 mirror. It nearly focuses to infinity but requires +20 micro adjustment.

QUOTED IMAGE

QUOTED IMAGE

QUOTED IMAGE

holy crap




  
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tkbslc
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May 23, 2011 11:30 |  #8

MOkoFOko wrote in post #12461456 (external link)
Hmmm... too bad those 600 and 800mm L lenses still run $1000-$3000...

Well that is about 20% of what a used AF one would cost.


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kendon
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May 23, 2011 11:41 |  #9

lannes wrote in post #12458936 (external link)
I got one of ontarian fd/eos adaptors, it works well with telephoto fd lenses like the 500mm f/5.6 mirror. It nearly focuses to infinity but requires +20 micro adjustment.

MA on a manual focus lens???


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lannes
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May 24, 2011 06:11 |  #10

kendon wrote in post #12463390 (external link)
MA on a manual focus lens???

The adaptor AF chip allows you to shift the AF confirmation point so that it corresponds to a different point of focus via the MA on the 5dm2. Hope this explains it, I was able to align the focus confirmation signal with the correct point of focus by adjusting the MA.


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kendon
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May 26, 2011 13:12 |  #11

i think i get where this i going, not in full tho. wouldn't the focus confirmation beep just use the actual focus, measured by the (now "passive") af sensors?


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lannes
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May 26, 2011 20:23 |  #12

kendon wrote in post #12483652 (external link)
i think i get where this i going, not in full tho. wouldn't the focus confirmation beep just use the actual focus, measured by the (now "passive") af sensors?

Before I changed the MA for the lens, the focus confirmation would light and beep when the image was out of focus, by changing the MA I was able to align the focus confirmation with correct point of focus. I believe this has something to do with the AF chip on the adaptor and the body AF communicating.


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kendon
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Jun 01, 2011 07:25 |  #13

lannes wrote in post #12485819 (external link)
Before I changed the MA for the lens, the focus confirmation would light and beep when the image was out of focus, by changing the MA I was able to align the focus confirmation with correct point of focus. I believe this has something to do with the AF chip on the adaptor and the body AF communicating.

doesn't make any sense, but i guess it is because we don't know what happens between the body and the chip. the whole lens-chipping story is pathetic anyway, the body should be able to confirm the focus without any chips or hacks or tricks...


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FatCat0
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Jun 01, 2011 12:33 |  #14

lannes wrote in post #12458936 (external link)
I got one of ontarian fd/eos adaptors, it works well with telephoto fd lenses like the 500mm f/5.6 mirror. It nearly focuses to infinity but requires +20 micro adjustment.

QUOTED IMAGE

QUOTED IMAGE

QUOTED IMAGE

Wow, which lens were these taken with? The bokeh is a little strange but the quality is phenomenal.




  
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lannes
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Jun 20, 2011 00:33 |  #15

FatCat0 wrote in post #12516413 (external link)
Wow, which lens were these taken with? The bokeh is a little strange but the quality is phenomenal.

These were taken with the Canon 500mm f/8 FD Mirror lens using Ed's FD to Eos adaptor.


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It's finally here, Ontarian's glassless FD-EOS converter for 600 and 800mm FD lenses.
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