> BTW, anybody got any solutions to fogged lenses when shooting sunrises? If
> your equipment is cold (as it would be if you started shooting while still
> dark) it will fog up and moisture will condense as the morning air warms.
Ken,
Have you ever heard of the Kendrick dew remover? It's a 12v box and
plug in leads that end in a wrap that is essentially a series of
resistors that produce heat to dissipate dew. It is controlable from
the box via a variable control. It is rated at very low amp in the
low setting, which is all you need for most situations. It was
developed for the amateur astronomy crowd to solve dew problems with
telescopes but works great for cameras too. The actual heaters come
in different lengths for differing diameters. It is a quality product
not cheap but not excessive. It is designed to allow you to keep your
glass just above ambient air temp to prevent fogging. I use one and
couldn't operate in the nightime air without it. The dew cap
mentioned does help but remember that a camera lens has little mass
vs. a large refractor lens or reflector mirror. It will still cool to
below ambient air temperature very fast. The purpose of these caps is
as much to reduce stray light from entering the optical tube, the
same as in camera lens use. Visit his website at :
http://kendrick-studio.com
--greg
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