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04-01-2010, 01:10 PM   #1
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focusing screen for 645N

I received my 645N today (in addition to the 645). While I can see why people feel it is a huge improvement over the 645 original (apart from the finishing, which feels more solid on the original), my 645N was used - and a bit more used than I expected.

The matte focusing screen has vertical marks on the left and right side, as a damp mirror on which someone drew lines with two fingers on each side, left and right. It doesn't show all of the time, but I do find it distracting.

I do not know what it is - whether it is damage to a layer, or something that could be cleaned off the screen. Are there any repair centres in the UK (preferably near London) which anyone can recommend to me? Or perhaps even Pentax UK?

I looked into a new screen, and found that there are differences between the 645 and 645N screens - with all offerings I found relating to the original 645. Grrr. How often do 645N screens pop up, and are they similar to 645NII ones?

Otherwise, very satisfied, shot a first roll today to check the camera & lens (120/4 macro) and hope to receive results within a week.

The 645N manual speaks of a "sprit screen" option. A nice example of hypercorrection.

04-07-2010, 09:46 AM   #2
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The 645n and NII share the same screen code number 8X, the 645 use a different type of screen code number 2X. HTH
04-20-2010, 04:16 PM   #3
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I've located one via Japan Exposures.
05-03-2010, 10:16 PM   #4
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Just got mine from Dirk at Japan Exposures as well. Dynamite guy! Great Service! Time to take ours out to break them in!


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