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jsmoraes
19-04-2012, 09:07 AM
Two new photos. Both GSO 305 mm - Cannon 350 D

with balow ED 2x - 20 m 59 s - 42 frames - ISO 800

and no barlow - 16 m 59 s - 34 frames - ISO 800

Gem
19-04-2012, 03:52 PM
Nice resolution. :)

Paul Haese
19-04-2012, 05:49 PM
Nice resolution Jorge. Colour is not quite right as the cluster has mainly old red giants. Your black point appears to be clipped too and that would be hiding fainter stars.

My suggestion is for you to try some of Ken Crawfords tutorials.

jsmoraes
19-04-2012, 10:16 PM
well told and well remembered, Paul. I will review the original, it might be by the digital treatment.

Can you post the link to Ken Crawfords tutorials ?

Paul Haese
19-04-2012, 10:51 PM
click on tutorials once you get there and then tutorials and presentations.

http://www.imagingdeepsky.com/

jsmoraes
20-05-2012, 10:58 PM
A week with a thin rain. Suddenly, a good seeing. But only two hours. After time lost with installation, I only got a single 10 sec iso 1800 shot before the rain fall again.
Despite of it, I got a more colored image.

Thanks Paul for Ken Crawfords tutorials link.

http://multiply.com/mu/jsmoraes/image/2/photos/45/600x600/14/NGC5139-full-A.jpg?et=wdhFreoHRHOlrI4bc%2C4Ggg&nmid=526698910

and a crop

http://multiply.com/mu/jsmoraes/image/2/photos/45/600x600/15/ngc5139-crop-A.jpg?et=MSdGuKi6Hxab47MGyTZbEg&nmid=526698910