Pentax FA31 Limited -> EOS

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Archive 2009 · Pentax FA31 Limited -> EOS

trifilmer
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p.1 #1 · Pentax FA31 Limited -> EOS

Is there an adapter to mount this on a 5D? If so, what is it?

Thanks

Apr 01, 2009 at 02:52 AM

HansenTsang
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p.1 #2 · Pentax FA31 Limited -> EOS

You can use a Pentax lens to EOS body adapter from vendor like Fotodiox. However you will have to cut off the aperture lever and protector from the lens to make it work on the 5D. That is a waste of a good lens since the surgery is non reversible.

Apr 01, 2009 at 03:02 AM

thrice
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p.1 #3 · Pentax FA31 Limited -> EOS

I'd say it's far from a waste, unless you're shooting Pentax film bodies. Pentax digital bodies are lagging quite far behind their stellar lenses. I think modifying this lens to use it on full frame Canon is doing it justice.

If Pentax/Samsung pull their thumb out and decide to make a FF digital (not likely) then it's a different story.

Apr 01, 2009 at 05:02 AM

jcolwell
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p.1 #4 · Pentax FA31 Limited -> EOS

If you have a chance, try it on a 1.6x crop body first, as this doesn't require the aperture leverectomy. This way, you can see if you like it (as far as you can tell on the CF body), and then decide if you want to keep it. I agree with thrice's comments, and add that it will still work on Pentax bodies, but only with manual stop-down aperture control.

Apr 01, 2009 at 11:50 AM

trifilmer
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p.1 #5 · Pentax FA31 Limited -> EOS

Is it the K mount adapter?

Apr 01, 2009 at 12:54 PM

HerbChong
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p.1 #6 · Pentax FA31 Limited -> EOS

i think my 31's (i own a pair) are as good as the Zeiss 28/2.8 in terms of CA, sharpness and falloff.

Herb...

Apr 01, 2009 at 03:17 PM

jcolwell
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p.1 #7 · Pentax FA31 Limited -> EOS

trifilmer wrote:
Is it the K mount adapter?

Yes.

Apr 02, 2009 at 01:51 AM

trifilmer
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p.1 #8 · Pentax FA31 Limited -> EOS

Has anyone done this to their lens? (the leveroctomy)

Apr 02, 2009 at 12:20 PM

Jonas B
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p.1 #9 · Pentax FA31 Limited -> EOS

trifilmer wrote:
Has anyone done this to their lens? (the leveroctomy)

When I went from K10D to 5D I contemplated this. In the end I sold the FA31 as I figured I could live without the CA and the strange mechanical build of the FA31. Better get some money for it. I bought a nice Zuiko 24/2.8 instead.

I did remove the aperture lever and its protecting shield from my FA20-35. It works a bit so-so at its widest end but is one of the few wide angle lenses with decent bokeh (when not everything is in focus that is... It was a 3 minute work using a plier including covering the rear element and finding the plier.

Apr 02, 2009 at 03:15 PM


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