I've seen small heating elements advertised. The lens only needs to be slightly
warmer than the air. I don't know it the real astro photographers use them
though.
-jeff
-------------- Original message from Komtanoo Pinpimai <romerun@xxxxxxxxx>:
--------------
>
> Hello,
>
> I tried to shoot stars last night and the problem that occured is
> humidity. After 10 minutes, outside my OM lens turned to be dewy. I
> think it's a very common problem, since every night in fall season,
> the humidity is high, I wonder how they overcome it ?
>
> thanks.
> kem.
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|