fwm891 Posted October 10, 2013 Share Posted October 10, 2013 Combined 2x900s subs in each panel to form this image: Kit used: Atik 383L+ mono with SX filter wheel and Baader Ha filter (7nm) Altair Astro 115EDT-APO + reducer flattener Avalon Linear Fast EQ mount on observatory pier. Processed in AA5 to produce the two panel stacks and convert to 16 bit tiffs Two panels aligned and merged in PS CS3. Link to comment Share on other sites More sharing options...
Daz Type-R Posted October 10, 2013 Share Posted October 10, 2013 That is fantastic! Link to comment Share on other sites More sharing options...
Brantuk Posted October 10, 2013 Share Posted October 10, 2013 Very nice indeed Francis. Which reducer/flatener are you using? Link to comment Share on other sites More sharing options...
+Graham Posted October 10, 2013 Share Posted October 10, 2013 That is a stunner Francis. Link to comment Share on other sites More sharing options...
BAZ Posted October 10, 2013 Share Posted October 10, 2013 All the dark siders are doing this new fangled Ha. What happened to LRGB. That said, this lovely, some nice fine detail in there. Link to comment Share on other sites More sharing options...
fwm891 Posted October 11, 2013 Author Share Posted October 11, 2013 Thanks All. Baz its a 0.8x reducer Martyn - I've just finishing an HaRGB version will post that possibly today, its in 3 panels with more detail. Thanks again Francis Link to comment Share on other sites More sharing options...
Sheila Posted October 11, 2013 Share Posted October 11, 2013 I really do like Ha on its own, no colour... detail is really good Link to comment Share on other sites More sharing options...
fwm891 Posted October 11, 2013 Author Share Posted October 11, 2013 Thanks Sheila Link to comment Share on other sites More sharing options...
Doc Posted October 11, 2013 Share Posted October 11, 2013 Ha is natural and does not look fabricated in my opinion, this is a cracker of shot, well done Francis. Link to comment Share on other sites More sharing options...
fwm891 Posted October 11, 2013 Author Share Posted October 11, 2013 Thanks Mick. Link to comment Share on other sites More sharing options...
Guest Altair Posted October 13, 2013 Share Posted October 13, 2013 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. 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 Link to comment Share on other sites More sharing options...
fwm891 Posted October 13, 2013 Author Share Posted October 13, 2013 Thanks Nick - Colour version: http://www.eastmidlandsstargazers.org.uk/topic/6091-final-play-with-california-nebula-ngc1499-in-hargb/ Link to comment Share on other sites More sharing options...
Guest Altair Posted October 13, 2013 Share Posted October 13, 2013 (edited) Folks here's the Altair Planostar 3" 0.79x reducer/flattener specification, and I've put up a diagram showing spacing data for various telescopes in our range. I haven't got an exact price yet, but hoping it will be around £250. More availability info when I get confirmation on machining and lens assembly. The flattener will fit direct to the focuser via the rear adapter, also we have a new focuser coming along which it will also fit directly. Thanks Nick Edited October 13, 2013 by Altair Link to comment Share on other sites More sharing options...
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