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Pentax M lens + * ist D & handheld meter = no problem?


Jochen_S

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Sorry, I read Douglas'question and suppose it isn't answered properly

yet. I have just enough $$ for a *ist D, which I 'd love to use with

my old lenses. Does it close the aperture to what I selected, when I

have the custom function set to fiering with M lens?

Next: Is the ISO setting of the camera comparable to film speeds? - I

want to use it as a Polaroid substitute too.

Is the Autofocus usable indoors with medium modelling lights and a 4x

or 8x ND filter? - My strobes are fitting to slow film and LF camera

and a bit to strong for 35mm and ISO 200.

Thanks

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  • 2 weeks later...

from PDML

QUOTE

-------

Hi folks,

I played around today with various lenses and thought I'd report

back the results.

 

F50/1.4, FA24/2, 77/1.8, Sigma 28-200 3.8-5.6 (AF), Tokina AT-X 80-200

2.8 (MF)

As expected all lenses gave correct exposure. With the Sigma lens the

focal length was recorded but not the lens name. The Tokina was

described as "A lens" but no focal length or aperture value was given.

 

SMCT 85/1.8 and 300/4 using M42->K converter

These gave correct exposure in Av mode if use in stopped down (manual)

mode. The f-stop is not displayed but the speed is, and as you stop down

further the speed decreases. It is all perfectly workable.

 

SMCT 6x7 135/4 (with #3 tube) and SMCP 67 165/2.8 using 6x7->M42 and

M42->K converters.

Once again, with the lenses set to manual stop down metering in Av mode

worked just fine.

 

M35/2

In Av mode it won't stop the lens down, so regardless of what you set

the aperture ring to it is always wide open. This means that the

metering is correct and the picture is correctly exposed.

In Manual mode it will stop the lens down so you need to get the correct

exposure. There is no need to swap between modes. Hit the "green button"

(that is the official pentax name) and you will get the correct exposure

for wide open, then adjust your shutter speed accordingly.

 

Note: If you take an A/F/FA lens off the A setting on the aperture ring

it will behave as if it is an M lens. You won't see the aperture value

in the viewfinder and you can't set it from the body either.

 

Basically the M42 and 67 lenses are just as usable as with any other K

mount body, so no loss there. The K and M series lenses are usable, but

it is a bit more kludgey than I would like. With rapidly changing

lighting it would be a pain, otherwise I can live with it.

 

 

Paul Ewins

Melbourne, Australia

----------------

End of quote

 

Erwin

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