Dew control on filters threated on the end of a Camera adapter.

[Marios]

Hi Guys

I am considering purchasing the below filter to thread onto the end of my Bintel 2inch Camera adapter. I am concerned that the filter may suffer from dew as it is exposed to the night air in my Newtonian scope.

Since the filter will likely rest on a inward focus or close to it a dew heater wrap around wont be able to be applied directly around the filter itself.

Can anyone suggest a work around to keep Dew off?

http://www.bintel.com.au/Astrophotography/Camera-Adapters---T-Rings/Bintel-Camera-Adapter-2-/35/productview.aspx

http://www.optcorp.com/idas-light-pollution-suppression-lps-filter-2-round-mounted.html

[Marios]

Found two solutions to move the 2 inch filter up the frame closer to the DSLR to reduce the risk of DEW.

http://agenaastro.com/baader-canon-dslr-t-ring-2-filter-container-nosepiece-dslr-t-2958550.html

http://www.optcorp.com/teleskop-service-2-inch-single-filter-drawer-system-tsfek2.html