Cygnus in poor man's Ha - 2nd attempt

[michaelmorris]

A couple of weeks ago I experimented with using a very broadband Ha-type set up on my astro-modifed Canon 1100D with a Canon nifty-fifty at f 5.6 ( http://stargazerslounge.com/topic/221998-poor-mans-ha-image-of-cygnus/ ).  I was pleased with the initial results, but there was definite room for improvement.  Here is my second attempt with the lens wider, more subs and better framing.

The increased number of subs and better framing have improved things a lot, but the wider aperture was definitiely a mistake.  I've applied a very slight lens distortion in Photoshop to try to minimise the elongated stars at the edge of the field of view.  Even then it's had to be cropped slightly.  I'm going to experiment with f4 and f5.6 subs of the same view and compare the star elongation on the peripheries.

[laser_jock99]

Good effort.

[Pete Presland]

very nice,incredible amount of stars and gas. in some respects i quite liked the look of the elongated stars at the corners, it made think of going to "warp speed"

[ollypenrice]

I've never seen an image through a broad Ha filter before and it has a certain charm. Good stuff.

Olly

[michaelmorris]

Here at last is an attempt at blending the colour data with the luminance. 

Much thanks to the Rob Long's brilliant tutorial about how to get rid of red haloes from images taken with modifed DSLRs.

http://budgetastro.com/micro/articals/red_halos/red_halos.html