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04-14-2014, 06:43 AM   #1
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new split screen on K20D

I had some dust that I just couldn't remove on my K20D's focusing screen so I ordered a new split focusing screen from China for about $15.00 on Ebay. Big difference, it's like getting a new camera

04-14-2014, 10:27 AM   #2
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Sounds good Peter. How about a link?
04-14-2014, 10:51 AM   #3
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Are these hard to replace? I also have some dust on mine that I can't seem to get off of it, but I'm kind of afraid of changing it myself.
04-14-2014, 12:15 PM   #4
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very easy to replace

here's what I ordered for on K20D. It took a while to get since it was from China but I wasn't in any hurry and it was the least expensive one that I could find.
Single 180 Split Image Focusing Focus Screen for Pentax K10D K20D SLR Camera | eBay

04-14-2014, 12:35 PM   #5
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Thanks for that video, Peter
04-26-2014, 08:34 PM   #6
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QuoteOriginally posted by peterjcb Quote
very easy to replace
K10D Changing your focusing screen. - YouTube

here's what I ordered for on K20D. It took a while to get since it was from China but I wasn't in any hurry and it was the least expensive one that I could find.
Single 180 Split Image Focusing Focus Screen for Pentax K10D K20D SLR Camera | eBay
This is very helpful. Thanks very much.
04-29-2014, 06:46 PM   #7
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Most the time the focussing screen, once removed, can just be blown off and put back in.
05-14-2014, 04:05 AM   #8
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Hello Peter, Can you please describe the diferences? Is the manual focusing easier? S

05-15-2014, 07:25 AM - 1 Like   #9
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QuoteOriginally posted by Sivas Quote
Hello Peter, Can you please describe the diferences? Is the manual focusing easier? S
it's easier & clearer to focus
https://www.pentaxforums.com/forums/attachments/6-pentax-dslr-discussion/1096...-p1180906-.jpg
05-15-2014, 11:26 PM   #10
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Just as a disclaimer to this thread many replacement focusing screens require shimming to correct for slight thickness differences or you will have front or back focus.
The actual replacement of the screen is easy provided you don't fumble and scratch it, or or get even more dust on it.
There is also the potential of the split prism to interfere with spot metering, something that may matter to some a lot, and others not at all. On some types of screens there is a slight difference in metering but its usually consistent enough to compensate for in the EV correction setting if necessary.

For cleaning if the dust won't blow off I find a lens brush good for loosening up difficult dust on the very non flat surface of the focusing screen and then you can blow it off with a rocket blower.

I put a Katzeye in my K20D but I won't bother in my K5, I just use the green focus indicator when I using manual lenses.
If a FF body came out I might put a better screen in it, as with the much larger viewfinder I would do more optical focusing than I do with the smaller crop viewfinder. I would pick the S type screen from focusingscreen.com in that case.
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