NikonGear'23
Gear Talk => Lens Talk => Topic started by: Edgy01 on May 30, 2016, 02:49:38
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Have had my 1000mm Reflex-Nikkor for a number of years. I have also used my late model 2X telextender on it quite successfully. But I have noticed that I have some dust which seems to get in easily with this design.
Is there a simple (or relatively simple) way to get inside to clean elements, or the mirrors? Which lenses or mirrors are the more influential upon imagery quality if dusty?
TIA,
Dan
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Just remember, unlike the coatings on lenses, the aluminum coating on the mirrors is extremely fragile and easily scratched. If I were you, I would limit cleaning of the mirror surfaces to nothing more than blown air, or possibly a very soft brush if absolutely necessary.
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Good Advice!
Just remember, unlike the coatings on lenses, the aluminum coating on the mirrors is extremely fragile and easily scratched. If I were you, I would limit cleaning of the mirror surfaces to nothing more than blown air, or possibly a very soft brush if absolutely necessary.
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http://lenscleanservice.com/index.php?QBlog-20151118-3
too give you an idea ::)
a different lens, but construction should be the same. :o :o :o
have you tried the vacuum cleaner approach?
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I have not tried any methods yet. I can see how the design can literally suck dust laden air into the mechanism. I think I'll have to take the front mirror off to gain access to blow off the surfaces, o to vacuum out the internal workings.
Thanks
Dan
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Hello. I have just received a very nice condition Nikkor 1000mm f/11 lens. It came without the focusing handle.
Does anyone know what thread is used for the focusing handle? It is clearly less than the 1/4" tripod mount, but i don't have any suitable small bolts to do trial and error with.
Thanks, Ross
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Replying to my own question. A 5/32" bolt will fit roughly, but the thread spacing seems wrong. A 4mm bolt seems to screw in smoothly, and that is what I will use.
These old lenses take on a new lease of life with the ability to use focus peaking and the simplicity of increasing the contrast, either at the time of capture or in post-processing. Still needs a tripod.
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I would be extremely careful not to dislodge are anything in a catadioptric lens; since the light path is folded 3 times tolerances must be 3 times more carefully observed
p.