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Old February 17th, 2016, 17:25   #5
Dartaflan
 
Join Date: Feb 2016
Quote:
Originally Posted by Verex View Post
You can contact GSCI and make an appointment to try them out.
I'd love to but way too far.

Quote:
Originally Posted by Deltastronk View Post
GSCI or Alpha will take care of you.

Russian Gen 3 tubes are fine these days and sometimes hard to tell apart from US Gen 3 tubes. Top, top top of the line Gen 3 tubes will still smoke Rus ones, but for 95% of the time they will be identical.

If you go the Gen 2 route, make sure you specify you want a Photonis tube, preferably something close to XD4 spec. If you are willing to live with a few dots in the image, you can get a unit with near Gen 3 performance at a Gen 2 price point. A nice, high quality Photonis Commercial Grade Tube is, basically, one of the best values you can get when buying in Canada.
I was actually thinking about building a custom unit with an XX1441 tube. What do you think of this one ?
Typical performance are FOM=1340, S/N=21, Sensitivity at 2850K=650 and 64lp/mm
http://www.alpha-photonics.com/produ...roducts_id=141

My concern is about very low light conditions, where Gen3 seems to be much more sensitive to light.
On the other hand, Gen2 is more rugged ...

Last edited by Dartaflan; February 17th, 2016 at 20:08..
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