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06-17-2012, 07:26 PM   #1
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H1a Viewfinder

Pre K-mount bodies are know to have dim viewfinders, my H1a is no exception.

I know that some people have successfully fitted Fuji ST801 prisms in Spotmatics to make the viewfinder brighter.

Are that any known tricks to make the viewfinder in H1a brighter? Any repairmen recommandations?

06-17-2012, 07:39 PM   #2

Join Date: May 2011
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For quality Pentax repair, Eric is considered the guy -> Home

Incidentally, I have the original Asahi Pentax and it does not have a dim viewfinder. Of course Eric did service it . . .
06-18-2012, 04:43 AM   #3
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The H1a viewfinder is much better at judging depth of field than the newer and brighter finders. I'd rather have accurate focus than brightness. For fast lenses the "Original Pentax" with plain groundglass center is better yet.
04-04-2014, 01:15 AM   #4
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I haven't seen my H1a since it was burgled in 1979, but I don't remember it having a dim finder. However I didn't know that many people with SLRs then, so my comparisons were limited. Mine had fine and coarse microprisms and was very good for focusing.

04-29-2014, 10:09 PM   #5
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My SV has a slightly brighter viewfinder than my SPII's, which was a surprise. I'd have thought any silvering of the prism that was developed by 1962 would have made into the Spotmatics, so perhaps the lack of a meter means more light ends up going to your eye (rather than to the meter)? I'm speculating though...

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