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120 / 220 film RF's 120 / 220 format rangefinders including Fuji, Koni-Omega, Mamiya Press, Linhof 6x7/6x9 cameras, Mamiya 6/7 among others, but excluding the 120 folders and the Voigtlander 667 cameras that have their own forums.

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Mamiya Press, Super 23.
Old 09-03-2018   #1
mark fewtrell
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Mamiya Press, Super 23.

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The second convex lens in the viewfinder assembly seems prone to a blue haze. This occurs regularly. What is it. Ive tried IPA toothpaste and peroxide. Its better than it was. And even cerium oxide.
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Old 09-03-2018   #2
besk
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That is interesting. I noticed it in my Universal even after a CLA.
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Old 09-03-2018   #3
charjohncarter
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Hmmm, no haze on mine and I've never had a CLA.
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Old 09-14-2018   #4
oftheherd
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I have three bodies, and iirc one has haze, but nothing blue in there.
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Old 12-23-2018   #5
absalom1951
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I am currently cleaning a Super 23 I got for a bargain price. The viewfinder is very hazy and dirty. Which mirror should not be cleaned ? I found a site which describes how to clean the veiwfinder assembly . It tells how to do everything , but it states nowhere of which mirror has the rangefinder spot . Yes, I am a novice at this. I have read where a novice such as I has wiped off the rangefinder spot by cleaning, and I wish to avoid that mistake. After learning on this Super 23 I will try to clean my good 23.
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Old 12-23-2018   #6
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I would say do more research you don't want to hurt either mirror. One thing nice about this rangefinder is that everything is big so you can adjust and clean easily. I didn't clean my mirror because I was worried like you are. The spot on mine is a little light but so big I can live with it.
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Old 12-24-2018   #7
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Thanks for the reply. You are absolutely correct . I've decided to just clean the viewfinder and call it good, . I'm not touching any of the mirrors because as you say- everything is so big.
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