telecentric barlow request

wargrafix

Hi sam and team, i have been using vivitar's 3x teleconverter (screw mount) and its really amazing. Unlike a regular barlow, it has m42 threads male and female on the ends. This allows me to attach the camera to the ota with zero flexure.

My request is one from zwo with even better optics, that is is really good, and more improtantly better coatings. The weakpoint is the light tranmission could be better. Thank you kindly

riklaunim

4-element telecentric designs with fixed magnification aren't easy to come by. There is Meade TeleXtender and TeleVue Powermate only from the mainstream ones.

wargrafix

The only one i know is vivitar's screw mount one. One end scres into the 2"sct adapter and the camera screw into tele extender. The chain has no flexure. Powermate is.good but big

Sam@ZWO

we are not professional at this ;)

al bates

Try This

http://www.owlastronomy.com/barlows.htm

wargrafix

Its ok sam. With time i think the team will make an excellent barlow. Even an apochomatic one.

What makes this different is the camera screws in to the barlow and the barlow screws into 2" adapter m42 threads. I would buy that in a heartbeat.

I looked at the site. Good stuff, but not same idea.