Askar V Exchangeable 60mm and 80mm Astrograph - ASKAR-V Optolong Filters It has a total transmission

It has a total transmission specification of 94

(FASTAR imaging requires a third party lens assembly in place of the secondary mirror)

and enhance the wave length of Hα and OIII

bringing your view of the Moon

Traditional design and more accurate than a simple collimation cap

Askar V Exchangeable 60mm and 80mm Astrograph - ASKAR-V Optolong Filters It has a total transmissionAskar V Exchangeable 60mm and 80mm Astrograph Have you every wanted to easily change your focal distance to meet your imaging needs? Now you can with the worlds first exchangeable astrograph system. Easily swap between apertures, focal lengths, and reducers to suit your shot! No more extra rigs. Focal range adjustable from 270mm up to 600mm using included main optics, reducer, and extender Replaceable objective lens can change from 80mm to 60mm