DSS and Canon 60D?!

[pvaz]

I captured some subs and was meaning to stack them on DSS, but

seams it doesn't support the Canon 60D RAW format. Tryed v3.3.3 beta 29 and still nothing.

Are there any alternatives?

[keef_uk]

Have you tried registax or AviStack?

[Psychobilly]

convert the Raws to tiffs and then stack them .. a real pain but it will get you going...

Hmmmm?

http://www.cloudynights.com/ubbthreads/showflat.php/Cat/1,2,3,4,5,8/Number/3924674/Main/3924674

[pvaz]

thanks I'll give it a go

[pvaz]

I made it! Converted the images to DNG then used DSS. Here is the gear and settings used.

This are my 1st attempt on imaging so any constructive critics and tips are most welcome.

Gear used:

Canon 60D

EF 50mm f/1.8

Manfrotto 190xprob and ballhead

Settings:

ISO 800

2.5"

f/1.8

White balance for daylight

Subs for orion: 90

Subs for Beehive:98

Darks: 29

DSS settings:

Threshold moved up till it would detect ~50 stars on the image (read that somewhere). Mosaic mode with 2x Drizzle.

My editing steps:

- Stacked

- Fiddled with curves a bit on DSS

- moved to PS

- cropped

- fiddled with curves and levels to remove a little noise

- save as jpg to upload and here they are

[Psychobilly]

Hi Paulo,

Glad you got it sorted...

The Nifty 50 really needs stopping down to between f2.8 and f4.0 to give better star shapes... the exact ammount will depend on your particular lens... you can check how far you need to go by placing a bright star towards the corner of the frame and checking with zoomed in liveview... better again if you can do it on a laptop screen...

Apart from that it looks like everything else is pretty well sorted...

Billy...

[pvaz]

Ah! That's why I could never get the focus just right! Thanks, will play with it a bit to find the best aperture.

[pvaz]

Another thing: The subs on Orion had the nebula center slightly "burned" (I mean overexposed with loss of details, "burned" is what we call it in Portuguese and I'm not sure it translates). I find it odd for a 2.5" shutter speed. Some of you guys do 5 min subs with guided EQs. How do you achieve that without over exposing the nebula's brighter area?

[Psychobilly]

You were shooting wide open at f1.8 ISO800 for widefield with the Nifty 50 I tend to shoot f4 and lower ISO... both of which will increase the exposure time...

Billy...