Mould on internal lenses of Zeiss Binoctar (7x50) binoculars
I have cleaned the outside of the lenses but can still see mould inside. Do I need an expert to deal with this? Does Zeiss have a repair centre in Sydney or can you recommend a repair service in western Sydney please?
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Binoculars are normally purged of all air and filled with nitrogen to prevent fogging and mould issues. If one side fogs internally it's a sign that a seal has leaked and needs to be replaced. The manufacture or any camera repair store should be able to replace the seal and refill the chamber with nitrogen.
zeiss is clearly one of the best optical instruments made. if you play with it you will only harm it. some old zeiss were sealed with black wax and have to be heated to get apart. wish you could repair it but it's impossible without traing in the repair field...g.l. larry@reichinstruments
Carefully clean your binoculars
by firstly removing any dirt or dust from the main
body and straps using a soft microfibre cloth.
Avoid the lenses at this point using any form of
cloth on the lenses before removing all dirt and
dust particles first could destroy
Gently remove all traces of grit,
dirt or dust particles from the lenses using a soft
lens brush or canned air specifically designed for
Waterproof binoculars can be
rinsed gently under a tap but be sure to use on
lightly running water, avoid high pressure water as
it could damage your
Gently remove any remaining marks
using lens cleaning tools such as a lens pen or
lens cleaning fluid and lens tissue. Do not be
tempted to use kitchen towel or anything else lying
around that is slightly rough and may scratch the
surface of the lens, only use a lens pen, lens
tissue or a lens cloth. Gently wipe the lens using
a circular motion working from the centre of the
lens to the outer edge. NEVER apply lens cleaning
fluid directly onto the glass (always apply to the
cloth) and always ensure that the lens cleaning
fluid you are using is recommended for the type of
lens coatings that have been applied to your
binoculars (Do not use general
household glass cleaning products or products
designed to clean computer screens or glasses. Such
products could destroy the lens coatings of your
binoculars if used).
You don't, a service guy will! Unless you are proficient in the removal and cleaning of such equipment you are only inviting trouble. There are many servicing agents around the world who can repair this type of fault. The question I'd ask is how did the moisture get in there in the first place and how long ago? Mould can take hold very quickly and destroy coatings, so the sooner you take action the better.
you are right the prisms have probably shifted and it needs to be realigned, cost to realign for that model would cost about 35.00 plus shipping, if i can help any further please call 5088331232...larry