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We recommend use of red
If you can't find the right one for your telescope
Overall length: 25mm
2X telecentric barlow lens fully optimized in coatings and optical design specifically for the Hydrogen Alpha wavelength
Uses two AAA alkaline or rechargeable batteries (not included)
Astrozap Meade ETX 105 and Celestron 4 & 4SE NexStar Flexible Dew Shield Software We recommend use of redFlexible Dew Shield If you are looking for a perfect fit, a quality build, and an affordable all in one single product for passive dew fighting, the Astrozap Flexible Dew Shield is what you need. Flexible Dew Shield Features: All Night Clarity. No more ruined sky parties resulting from dew build up or excess stray light. Enjoy long and clear observation sessions. Passive Dew Fighter. The product's physical design will eliminate dew from forming on