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01-24-2012, 02:08 PM   #1
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Digital FF KAF lenses on a Pentax MX?

Hi.
I've just purchased a Pentax MX. Will "digital" FF KAF lenses fit on the MX?

01-24-2012, 02:13 PM   #2
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Yes, they will.

The Pentax Camera Lens Compatibility Chart

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01-24-2012, 02:22 PM   #3
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Thanks Adam!
01-24-2012, 03:01 PM   #4
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QuoteOriginally posted by zantaphia Quote
Thanks Adam!
unfortunately 'fitting' and working are a couple different things. the compatibilityl chart is correct that adam linked. the newer lenses
for digital that have a 'da' in their name do not have an aperture ring, making it impossible to set the f stop..... You didn't say
which lens you had, but the only way to select an aperature with the MX is with an aperture ring on the lens, and if it doesn't have one......

01-25-2012, 12:37 PM   #5
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QuoteOriginally posted by rvannatta Quote
unfortunately 'fitting' and working are a couple different things. the compatibilityl chart is correct that adam linked. the newer lenses
for digital that have a 'da' in their name do not have an aperture ring, making it impossible to set the f stop..... You didn't say
which lens you had, but the only way to select an aperature with the MX is with an aperture ring on the lens, and if it doesn't have one......
Hi. I meant FF as in FullFrame (not DA/ APS-C). I have (among others lenses) Tamron 18-24, 18-250, 28-75. I think they are designed for FF, not APS-C. And of course they need to have aperture ring and manual focus ring, otherwise they will be "unusable" on the MX.
01-25-2012, 12:56 PM   #6
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the 18-250 is actually designed for apsc (hence the Di in the name)
28-75 is definitely FF
if you meant the 10-24 it too is an apsc lens (di)

the ones without an aperture ring can be shot wide open and they can all be used but will vignette if a di lens, though like the pentax DA lenses you may find at the longer end of the zoom they don't (the 10-24 may at all lengths though starting at almost circular at the 10 end)
01-25-2012, 01:16 PM   #7
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QuoteOriginally posted by eddie1960 Quote
the 18-250 is actually designed for apsc (hence the Di in the name)
28-75 is definitely FF
if you meant the 10-24 it too is an apsc lens (di)

the ones without an aperture ring can be shot wide open and they can all be used but will vignette if a di lens, though like the pentax DA lenses you may find at the longer end of the zoom they don't (the 10-24 may at all lengths though starting at almost circular at the 10 end)
Thanks. I made a typo, it's as you indicated 10-24... Just found a M40/2,8 pancake, maybe that is more suitable for the MX.
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