[strongmanmike (Michael)]

Originally Posted by gregbradley

Here you go Mike:

1. Apogee cameras do not have cover slips:

http://tech.groups.yahoo.com/group/apogee/message/502

2. Here is a sample mask one guy made (U16M camera comes standard with a professional aluminium black mask and they supplied one free after the sale to me)

http://astro.ihermans.com/test/reflections/mask.html

3. Tests showing the results of with and without a mask on reflections:

http://astro.ihermans.com/test/refle...omparison.html

4. Comparison of reflections between Astrodon Gen 1 and Gen 11 filters on a Tak TOA 130 with field flattener:

http://astro.ihermans.com/test/refle...omparison.html

There is also a post somewhere with a TEC180 and Astrodon Gen 11 reflections. I'll have to find that myself before I get some.

Greg.

Hmm? quite compelling..? I may have to send my ProLine back for the FLI aperture mask to be installed - FLI cameras come standard with an aperture mask now but unlike Apogee, FLI cams are hermetically sealed units and filled with Argon gas so must go back to be opened up and backfilled after the install. The new Astronomiks on their way seem like they will be very welcomed though so that's good.

Cheers for that mate!

Mike