Eta in Ha

[TheDecepticon]

Here's one I did the other day. NGC3372 central region in Ha.
102mm Celestron Achro refractor with a Meade DSI Pro2.
I had to re-size it to get it on.
Thanks for looking.

[AlexN]

I like it... :)

Whats the F/ ratio of your 102mm achro? I have wondered recently if a large achro would be good for narrowband work, and judging by that image, im kind of annoyed that I sold my Saxon 152mm F/8.. Could have been a real monster for this kind of work.. What can you do eh?

[TheDecepticon]

Geees....I reckon it probably would've been ok as in this type of imaging the very narrow bandpass of each filter negates any chromatic abberation that you might get in normal LRGB imaging. My 102mm is F/5 and so is my 200mm reflector both of which are going to do a lot more of this.. I cant wait to do my next one, but exposure time is at least doubled or tripled, depending on the object of choice, except for Orions and Eta Carinae Nebs which are very bright any way. It's great to do an alternative to LRGB and some of the colour images are awesome. It wont be too much longer and I'll have out grown the DSI so I'll have to convince the Petticoat Government that I need to do another spend.:eyepop:

[CoolhandJo]

Anyway,

Nice shot from a DSI II!

[atalas]

Nice shot !