ATX Scopes Objective Focal Lengths ? (1 Viewer)

[oneclik]

Does anyone know the objective lens focal lengths for the 65, 80 and 90mm scopes?

In the old brochure the ATM80 angled scope had a 460mm objective focal length. I can't see objective focal length mentioned in the new brochure only 'length', which seems different as the ATS 80 angled is stated with a length of 400mm?

I therefore assume the length listed for the ATX range is not the objective focal length.

Thanks

 

[kabsetz]

OC

There was a thread on Cloudy Nights that concerned the use of the ATX 95 objectives to make a binocular telescope that uses astro eyepieces. From the mentioned eyepiece focal lengths and magnifications it appears that the focal length of the 95mm objective would be 552-553mm, which would mean that the focal length of the 65 & 85 objectives would be 460mm.

Kimmo