I have to go with the Spotmatics too, just so nice to use...everything feels just right. The best design is not necessarily the best camera though.
There is only one other camera that felt perfect and didn't make me wish I was holding the F3 instead - Leicaflex SL - but its finder was so yellow that it was pretty much unusable. I would love to get my hands on another in good condition, but that would be costly as I have only two lenses for it (Angenieux 45-90/2.8 and Leitz Macro-Elmarit 60/2.8).
Is it possible to bleach the yellow out of the viewfinder by standing it in the sun for a few days? I see that recommended for yellowed lenses all the time.
What follows is me repeating things I heard or found on the internet.
Some lenses turn yellow because of Thorium, which was used in their construction. It's a radioactive element and the yellow tint is the product of Thorium's decay. Or something of that sort. Apparently, or allegedly, this can be helped by leaving the glass exposed to UV lights (sunlight).
Leicaflex' prism becomes yellow due to "desilvering" and the only help is to have the prism replaced. I don't know if it's the same process that happens to old mirrors. Either way, no sunbathing will help.
edit: It's not (only) plastic lenses. 35/1.4 Nikkor (of NC Auto kind) often has a yellow tint, and its glass is real glass. Of very good radioactive quality.
What follows is me repeating things I heard or found on the internet.
Some lenses turn yellow because of Thorium, which was used in their construction. It's a radioactive element and the yellow tint is the product of Thorium's decay. Or something of that sort. Apparently, or allegedly, this can be helped by leaving the glass exposed to UV lights (sunlight).
Leicaflex' prism becomes yellow due to "desilvering" and the only help is to have the prism replaced. I don't know if it's the same process that happens to old mirrors. Either way, no sunbathing will help.
edit: It's not (only) plastic lenses. 35/1.4 Nikkor (of NC Auto kind) often has a yellow tint, and its glass is real glass. Of very good radioactive quality.
I have two Nikon F3's and I think that they are the smoothest, most beautiful black boxes that I have handled. They just feel right - great ergonomics. Of course the details are very subtle. The F3 is a wonderful example of "form follows function"!
Some have actual silver, which must be overcoated to protect from tarnishing.There are several firms which will resilver prisms, first surface mirrors, etc. I believe Ian G knows of at least one. Since the "silver" is actually aluminium, it's doable at home with a vacuum pump, bell jar, car battery, and a bit of aluminium wire.
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