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07-19-2010, 02:04 AM   #1
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Tokina 28mm 2.8 Wont click into Pentax K-x

I just bought a Tokina 28mm and for some reason it wont click in i line up the red dots and it wont slide around. Looking at the mounts to my other lenses it doesn't look any different ?

It says on the back.

P/K-A R-P/K

Any ideas ?

Here is a picture.



07-19-2010, 02:50 AM   #2
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I believe you have this problem

https://www.pentaxforums.com/forums/pentax-dslr-discussion/15697-dangerous-th...nses-pk-r.html
07-19-2010, 02:59 AM   #3
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Maybe a Ricoh-mount.

Caution regarding Ricoh lenses on Pentax bodies: Pentax SLR Talk Forum: Digital Photography Review

I read somewhere that they also didnīt click, when they didnīt get stucked. Beware!
Look at the pictures further down in this thread and compare tha angles on the contacts on your lens with a pentax-lens.

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/46816-all-righ...ens-stuck.html
07-19-2010, 03:33 AM   #4
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Original Poster
Yes thanks for the reply guys, just after i posted i saw that the flange around the lens was getting in the way so i removed the two screws and it popped out, the lens goes in and out without a worry now, works great.
Anyone know if this has any effect on the lens ?

07-19-2010, 01:47 PM   #5
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On my Ricoh lenses I've just hacked the shield down to the same size as the ones on my Pentax lenses, but apparently a lot of people just leave them off.
07-19-2010, 04:04 PM   #6
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QuoteOriginally posted by Lloydy Quote
On my Ricoh lenses I've just hacked the shield down to the same size as the ones on my Pentax lenses, but apparently a lot of people just leave them off.
Any idea what the shield is there for ?
07-19-2010, 04:10 PM   #7
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QuoteOriginally posted by xedent Quote
Any idea what the shield is there for ?
To protect the aperture lever.


Steve
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