Well, that kind of mod writes the K adapter off indeed. The sales pitch
wouldn't suggest any modification to the lens.
Currently I own two M42 lenses - a Pentacon 55/1.8 and SMC Takumar
135/2.5. Purchasing one of those adapters for just one lens (the 500n
came with an EF 50mm and EF 28~80mm) hardly seems a good move.
Are there any different adapters that you know of that would not need
those mods - maybe rotating the lens as Godfrey mentions in the K-> 4/3
interface?
The 500n is a crude thing, but last night I took a reading of some scene
at the office, setting the lens wide open. Then I disengaged the lens so
the electric contacts were off - so the camera would not "notice" the
lens anymore. Sure thing, the aperture would not register, the focus
confirmation became dead even if the scene remained in proper focus, but
the camera offered the same reading - and took the pic when I triggered.
LF
Adam Maas escreveu:
M42 lenses readily adapt to EOS but K mount is a different story
altogether. Using K mount lenses on EOS bodies other than the EF-S
digital bodies (Digital Rebels, 20D-50D) requires non-reversible
physical modification of the lens in question. The guard for the
aperture stop-down lever must be removed (permanent mod) and the
stop-down lever itself must either be removed or cut down (may be
reversible depending on lens).
Infinity focus is achievable. Aperture Priority and Manual modes work
with TTL flash but metering may not be reliable depending on body (I'm
not sure if the 500n has accurate stop-down metering). You lose
everything else (AF, full-aperture metering VF display of aperture,
all exposure modes other than Av and M)
-Adam
On Mon, Apr 13, 2009 at 8:10 PM, Luiz Felipe <[email protected]> wrote:
Since I'm stuck for a while with a EOS 500n, I'm wondering about those
adapters. Found one version local, but I'm told no AF confirm is expected
since it's a plain metal interface.
I know some of you use those adapters... how much did you pay for your
version, and what EOS functions are kept? Infinity in focus? Any eletric
contacts?
I'd be using that with Pentax lenses ranging from M42 with K adapter to FA,
manual focus and aperture of course, but without focus confirm it's just not
worth it.
Comments?
LF
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Luiz Felipe
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