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5 inch "Barkonian Refractor"

Started by Kevin Barker, 05/31/2012 04:26PM
Posted 05/31/2012 04:26PM Opening Post
A new atm telescope design!! A 5 inch RFT refractor.

Completely wooden (except for screws, optics, paint, glue, etc)

Works a treat and easy to collimate!!! the optics are very good on this old C5 lens. It is uncoated, air-spaced "super achromat"!!!!

Kevin Barker
Auckland, New Zealand

Attached Image:

Kevin Barker's attachment for post 55624
Posted 05/31/2012 04:29PM #1
Another view of the "Barkonian"
OTA is 18 cm X18 cm X73 cm. It has a mass of 4.5 kg approx.

50 mm eliptical Secondary is mounted on a 40 mm stalk of timber. Antares helical finder. lens is a 127/830

Works great I pushed it to 133 X last night on the moon and the images are very crisp.

Oddly CA seems quite low.
Design follows the KISS principle "Keep It Simple Stupid"

It is designed to be grab and go. The edge of the white Optical Box Assembly acts as a finder.

Kevin Barker

Attached Image:

Kevin Barker's attachment for post 144322