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vbasia · 09-19-2013, 01:02 AM

Hi,
I bought ML-60 focusing screen and tried it on Pentax K-30,
In view finder subject seems out of focus when using AF setting but when looking into the image it perfectly in focus,
I tried on MF setting and its opposite (Subject in focus while looking into view finder but image completely out of focus,
When using original MF60 screen then don't have this problem at all.

Any advise if something wrong with the installation or any other reason? Thanks!

topace · 09-19-2013, 01:33 AM

You sometimes have to calibrate a focus screen by installing thin shims to offset its position. Maybe that's what you're missing. I myself have been lucky enough not to need it.

vbasia · 09-19-2013, 05:09 AM

Originally posted by topace

You sometimes have to calibrate a focus screen by installing thin shims to offset its position. Maybe that's what you're missing. I myself have been lucky enough not to need it.

Hi Topace!
Thanks for the reply, actually there is no thin shims together with the screen,
I will find it and try to check if it works

I think you are right as I read it in other forum discussion as well as on focusingscreen.com site.
Thanks again!

09-19-2013, 01:02 AM	#1
vbasia New Member Join Date: Jul 2013 Posts: 9	Pentax ML-60 focusing screen Hi, I bought ML-60 focusing screen and tried it on Pentax K-30, In view finder subject seems out of focus when using AF setting but when looking into the image it perfectly in focus, I tried on MF setting and its opposite (Subject in focus while looking into view finder but image completely out of focus, When using original MF60 screen then don't have this problem at all. Any advise if something wrong with the installation or any other reason? Thanks!

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09-19-2013, 01:33 AM	#2
topace Senior Member Join Date: Sep 2011 Location: Stockholm Posts: 198	You sometimes have to calibrate a focus screen by installing thin shims to offset its position. Maybe that's what you're missing. I myself have been lucky enough not to need it.

09-19-2013, 05:09 AM	#3
vbasia New Member Join Date: Jul 2013 Posts: 9 Original Poster	Originally posted by topace You sometimes have to calibrate a focus screen by installing thin shims to offset its position. Maybe that's what you're missing. I myself have been lucky enough not to need it. Hi Topace! Thanks for the reply, actually there is no thin shims together with the screen, I will find it and try to check if it works I think you are right as I read it in other forum discussion as well as on focusingscreen.com site. Thanks again!

Pentax ML-60 focusing screen

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