>So who would have thought that Canon Digital ends up being as backward
>compatible with Pentax lenses as Pentax Digital is!  <VBG>

LOL. It's true.

Wasn't -quite- as compatible as I had been led to believe. There was a
small mod I had to make to the M42 / EOS adapter. When I first mounted
the lens, the shutter wouldn't fire and it threw an error message: 'ERROR
01' which turns out to be 'clean the freakin lens contacts you moron - I
can't find the bloody lens'...

Puzzled, I took the lens off the adapter and tried firing with just the
adapter aboard. No joy. Then I took the adapter off and fired it bare-
bones with nowt but God's own air as the lens. It fired.

Aha - so on closer inspection down the neck of the Canon, I find a small
detector at the end of one of the flanges for the EOS mount, so that when
an EOS lens is mounted, it contacts this small moveable protrusion and
tells the camera that there is in fact a lens aboard, and so can you
contact the lens via the row of electrical contacts? With an EOS lens,
the camera says, 'sure, I can feel every one of those little brass
buggers, ready to fire, heee-hawww'.

But with the M42 / EOS adapter aboard, the little detector is engaged but
the camera can't feel the contacts and say's, 'sheesh, sumpin fishy goin
on here - sposed to be a lens here, but they ain't no friggin contacts on
it - hell you ain't firin with that mess there boy'. ERROR 01.

So, a quick trip into the garage and I fired up the bench grinder. Three
minutes later and a suitable chunk is removed out of the end of one of
the flanges on the M42 / EOS adapter. This time, the adapter is attached,
but there is no metal to contact the detector, and so the camera thinks;
'they ain't nuthin there boy, you go ahead and do whatever it is you
wanna, i'm layin low. BTW, you got manual, you got program, an you got AV
and that's all boy...'

And so it works :-)




Cheers,
  Cotty


___/\__
||   (O)   |      People, Places, Pastiche
||=====|      www.macads.co.uk/snaps
_____________________________
Free UK Mac Ads www.macads.co.uk

Reply via email to