Compatible with 1.25" ANTLIA IR685 infrared filter

Antlia IR 685 Pass filter

Seeing Optimizer Filter

The IR Pass 685nm filter is an absorbing filter. The filter absorbs the light before 685nm. In the infrared band, the sensitivity of the naked eye is reduced, so it is not suitable for visual inspection. It can effectively improve the lunar planetary photography. The influence of atmospheric jitter, the closer it is to the infrared, the relatively weaker the interference of ambient light and the atmosphere, which improves the contrast of the image. In addition to the lunar surface shooting, it can also be used for shooting other planets.
 
In addition, the IR Pass filter can be used with LRGB and U-Venus filters for different bands to show the details of planets in different bands.
Product parameters:
Optical glass
1.25", 2" is 2mm+/-0.05mm
Surface Finish: 60/40 (Conforms to US Army Table MIL-O-13830)
Double-sided grinding and polishing
Face: 1/4λ
Parallelism: 30″

Packing:1PCS

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On May 9, 2022 at 23:46:13 PDT, seller added the following information: