The Swan Nebula in Ha 7nM

batema (Mark) · #1 14-06-2010, 09:47 AM

Hi,

I have never really had a go at this object so on Saturday night I tool 18 x 10 minute shots using a Hydrogen Alpha filter 7Nm.

Taken through a William Optics Flt 110 and guided with PHD and stacked using DSS and processed in Photoshop CS3. Camera was a QHY-9 at
-20c. Darks applied but I have not done flats as I am struggling using my light box that I can not turn down and I don't really understand how to use EZCAP(program that came with the camera). Weather permitting I will have a crack at some colour ones of this tonight.

Feedback welcome.

Mark

gregbradley · #2 14-06-2010, 10:53 AM

Nice one. Looks like it could take a bit of sharpening.

Is this FLT110 the TEC oiled triplet lens?

Greg.,

batema (Mark) · #3 14-06-2010, 11:39 AM

Hi Greg,

The lens says designed by TMB and has some coating on it.

Mark

batema (Mark) · #4 14-06-2010, 11:45 AM

Sharpened using unsharped mask. Thanks for the advice. I was happy with the first but can definately see the benefits in the second.

Mark

TrevorW · #5 14-06-2010, 01:05 PM

Second one for sure Mark although I'd go for somewhere in between well done

gregbradley · #6 14-06-2010, 01:29 PM

That looks good. That'd be a high quality lens then. Nice.

Greg.