Askar Focal Plane Adjuster - FPA vendor-rigel-systems model #3339R-SGP fits the SkyGuider-Pro

model #3339R-SGP fits the SkyGuider-Pro mount

but you can always use the 80PHQ on a heavy-duty equatorial mount with a larger saddle (Losmandy-style) with the addition of an accessory or two

Tele Vue Advanced Tele-Pod with Encoders

93 arc seconds Light Gathering Power (Compared to human eye): 329x Secondary Mirror Obstruction: 51mm (2

(NOT applicable to A7R Mark III or A7 Mark III

Askar Focal Plane Adjuster - FPA vendor-rigel-systems model #3339R-SGP fits the SkyGuider-ProMost of the focal plane adjusters not the market today use a three point push pull mechanism to make adjustments. However, when adjusting the tilt angle in this manner, the relative distance between the two ends changes, thus changing the back focus and lowering star quality at the edges of the image. The Askar focal plane adjuster uses a unique spherical adjustment design to adjust the tilt angle, ensuring the focal plane is perpendicular to the