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Final play with - California Nebula (ngc1499) in HaRGB


fwm891
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Details of the flattener used on this image:

 

I lent Francis a prototype Altair Planostar 3" 0.79x reducer/flattener which is designed to work with our three Wave Series APO refractors 102, 115 and big 130mm, so they operate at F5.53 with a larger field. It seems to be working well according to Francis's test, and we are a go with this new product, so (as usual) we'll do a small initial production run at an affordable price to get these in the field and into the hands of early adopters. You can sign up for that on the product page using the "notify when in stock" button. This will be a much anticipated accessory for 102 and 115 owners, and will connect directly to the focuser rear thread. We are also working on a smaller 2" version which can be used with Altair 102 APO and various refractors from f6 to f8. Francis may have a colour shot too (Image above/fwm891).

The idea was to have 3x telescopes in one, by swapping the accessories
- no flattener/reducer = visual instrument for deep sky or planetary viewing
- Planostar 1.0x field flattener = imaging at native FL for say galaxies and smaller DSOs
- Planostar 0.79x field flattener = imaging f5.53 for larger objects

Nick

Edited by fwm891
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