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barkingsteve

Altair tri band filter

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A quick ( very quick :) ) test of the tri band filter. Skies cleared at 4:45 am so i  set up and done a flat ( rushed 😕  ) and tested this filter. Weather looks good most of the week and i am off work so i expect to do some further testing soon but thought i would share my first results now. 

130pds on evo mount,  294mc pro bin 1 with AA tri band filter, flat and dark applied, 12 second x 50 frames at 120-150 gain. saved as viewed, again this was done quickly as i am impatient :D 

Orion Nebula

Stack_50frames_600s_WithDisplayStretch.thumb.png.68048dc287c0131abc7c15df566eea88.png

Horse head ( usually i cannot get this at all  ) 

Stack_49frames_588s_WithDisplayStretch.thumb.png.83f3884eae665af3b8f8fdca708db6c6.png

rosette ( it was starting to get light ) tracking seemed to have burped.

Stack_44frames_528s_WithDisplayStretch.thumb.png.25b0a31974f5207d0dc9dc31efde6395.png

I am really looking forward to further testing this week under better conditions :)  with this and the idas p2 i don't think i need to invest in any more filters :D 

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very nice results, the "AA tri band filter" seems to be doing well job. best wishes Martin

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There does seem to be a bit of lopsided haloing around the brighter stars ( collimation ? tilt ? ) but this was rushed. i should get a good session in tonight as the weather is looking clear, so we shall see. Still seems to get decent detail on the rosette ( considering the tracking, flat and daylight breaking ) but hopefully i should get a good comparison with the p2 on the  pacman and bubble tonight :) 

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Some wispy clouds tonight but i got a few more captures. Same as above but 30-50 x 12 seconds at 100-200 gain. 

Bubble and little lagoon

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Crescent

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Heart

Stack_45frames_540s_WithDisplayStretch.thumb.png.f8e58f936f779a69594eb13576319658.png

pacman

Stack_32frames_384s_WithDisplayStretch.thumb.png.4997c8d9f153cf40d98408f1e240c91a.png

pelican

Stack_48frames_576s_WithDisplayStretch.thumb.png.3643d583b5fdbc1be0ef7e93f9665c15.png

Edited by barkingsteve
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