Sagitt. star cloud

[John W]

I took this image last night 23 July of the Sagittarius star cloud at 2 am while looking west. Single exposure with no tracking of 10 sec at iso1600 with canon 1200d modded camera 50 mm lens/f1.8. There is some slight movement in the stars - I thought 10 sec might be enough to not to get any trailing? Any comments appreciated. Low res image supplied.

[Somnium]

you picked up a lot of detail for a single exposure, maybe play around with the colour and tint to get a more natural look

[kon1966]

Have same modded camera and I suggest set the light to Fluorescent and that will tone down the red spectrum slightly.

Regards
Kon

[RB]

John I hope you don't mind, I adjusted the levels in Photoshop to get rid of the colour cast.
If you don't want this image up, let me know and I'll delete it.

Just some very quick adjustments to show what detail there is in the pic.
I might need to back off on the black point a little.
Nice widefield.

RB

[John W]

Hi Andrew, Thanks for altering the levels - it gives a different effect. Not sure what you adjusted to. I have just got this modded camera and have been experimenting. I'll also try adjusting white balance to fluorescent as suggested by other commenter. In the original pic (higher res - the stars have a slight trail - any comments on this?. Thanks everybody. JW.

[rustigsmed]

hi john,

when using that lens with my canon 600d I generally keep it to 8 seconds. that was just through trial and error rather than mathematics. I reckon if you manage to stack a few of those you'd have a great image.

Cheers

Russ

[John W]

Hi all, I just played around with the levels myself using GIMP and came up with this pic. Compare with my original. Thanks.

[rustigsmed]

Much better John :thumbsup::thumbsup:

[raymo]

Hi John, at 50mm focal length you can go to around 6 secs on a target
at 0 degrees declination, about 8 secs at 40 degrees dec., about 12 secs at 60 degrees, and around 30 secs at 80 degrees. The star cloud is around -30 degrees, so 7 or 8 secs as suggested by Rusty would be good.
raymo