[APML] Dew prevention on camera lens

[Allan & Julie Whetzel <whetzel@cox.net>]

Hello-

I'll be in the high Sierra Nevada in early August and wanted to do  
some star trail photography while camping. I'll probably go 2-3 hours  
with some exposures. I have a 28mm Zuiko f3.5 lens & hood on my  
trusty OM1. I'd like to avoid dew on the lens - so I  was  
contemplating the purchase of a Kendrick standard controller and as  
described on their website a "2 inch heater for 2 inch eyepieces,  
50mm finders, some camera lenses."

The 28mm Zuiko lens is 2" in diameter so it seems to me this would be  
the setup I'd want to get. If so - will it keep dew off the camera  
lens for long exposures? Would I just wrap the heater around the lens  
as close as possible to where the hood starts?

Any advice from the experienced would be appreciated!

Thanks,

Allan
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