M45 Deconvolved Scaled 2.1-sm

Comment

Comment by Dave Lane on November 3, 2013 at 8:11am

OK I may have the culprit. Your use of the word protruding, I think, may well have solved the mystery. It looks like the guide scope was protruding out far enough to be in the very edge of the images. I've re-positioned it back a couple inches and it should be clear now. Could this have been my issue?

Comment by Dave Lane on November 3, 2013 at 7:40am

Conor

Thanks dude. All my processing was done in Microsoft Paint :)

I'll work on it once I get back home this was a 15 minute stab in the dark. I'm a little concerned on the Williams Optics Scope now gonna go check it in a couple. Its doing a nice job but yeah something is squirrely. Bobs friend Doug has this same setup interested to see if he has the issue.

Comment by Conor on November 3, 2013 at 6:38am

Last spam, I promise. Processing-wise, I'd handle the chrominance noise in PI with ACDNR and use a wavelet transform instead of L/R deconvolution. Your seeing is fine, morphological operations aren't going to do much when you've got decent FWHM like you have here. (I'm jealous!)

What are you shooting with these days? I'm delighted to more deep sky stuff from you, man.

Comment by Conor on November 3, 2013 at 6:32am

There's also evidence of mounting screws protruding over the baffles into the imaging circle. That'd be easy enough to do something about, but so far as the lense elements themselves go, not so much; apochromatic systems need to be calibrated with an optics bench.

Comment by Conor on November 3, 2013 at 6:30am

My mistake, I'd assumed a reflecting astrograph or a Mak-Cass.

If that's on a refractor, then you have bigger problems. I'd be inclined to return it to WO presently. It's easy to rectify on a reflector, but it's certainly not trivial to do with an apochromatic refractor unless you have an optics bench to spot test it on. If it came from the factory like that, then I'd get a full refund and buy from someone else.

Comment by Dave Lane on November 2, 2013 at 8:18pm

Even on a little refractor? Its a Williams Optics GTF81

Comment by Jeff McFarlin on November 2, 2013 at 4:28pm

I 2nd that about pinched optics. Should be easily fixed.

Comment by Conor on November 2, 2013 at 4:13pm

Nice data, man.

Your mirror is pinched though. You should loosen the collimating screws or, more probable, the clamps holding the mirror into the cell.

Glad to see someone's getting some clear skies!