Antares High Contrast Filters Size:1.25" It has an aperture of

It has an aperture of 107mm

The ASI071MC-PRO camera comes with a completely upgraded anti-dew and mechanical body

the simplest

000 counts per revolution

Optical Info Optical Design ED Doublet Lens Coatings Fully Multi-Coated True Aperture (mm) 72 Primary Aperture (mm) 72 F/Ratio 5

Antares High Contrast Filters Size:1.25" It has an aperture ofSpecialty blocking filter: transmits only 480 510nM. M28. 4x0. 6 2UHC 2UHC is a filter that blocks the visual spectrum except for wavelengths between 480nM and 510nM. Often called a Nebular or ALP (anti light pollution) filter, this allow passage of ionized oxygen and hydrogen lines, but blocks light pollution reflectance from mercury and sodium vapor lamps. Threads into all 2" accessories. UHC(1. 25) UHC is a filter that blocks the visual spectrum