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Old 10-10-2013, 04:29 PM
Shooting_Star (Romina)
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Join Date: Aug 2013
Location: North Parramatta
Posts: 37
Thanks JB80! Yes, I've been shooting in RAW though somehow I managed to inadvertently select RAW+JPG last night and ended up with duplicates

Quote:
Originally Posted by raymo View Post
Secondly, noise reduction. Turn camera to manual mode so all sections of the menu are available. In my 1100D it is in the last section. There is long exposure noise reduction, and high ISO noise reduction. Experiment with both
enabled, or either one on it's own. I generally get the best results with both enabled.

Thirdly, the B that Lewis mentioned stands for bulb. With the camera on manual turn the shutter speed wheel through longer and longer exposures until you reach 30secs, and the next click will then be B. In the B setting the shutter will stay open all the time the shutter button is held down.
You will need a shutter release cable, if you don't have one, in order to
avoid vibrations when touching the camera.[get one on ebay for a few dollars].

Fourthly, When doing fairly basic work, you don't need to worry about
dark frames; with noise reduction enabled the camera takes one after
every shot, and it also does some bias work. Some people over process
their shots, for instance, using bias frames when they don't need to.
raymo
Thanks raymo - I found the noise reduction in the end and it seemed to help. I live in the city and don't often have a chance to drive out to somewhere darker, so my shots still have light pollution, but they're looking a bit better. The foreground is discernible but not washed out and you can still see stars in the background, which is the effect I'm after. I used f4 and ISO 800 for 15sec on the 18-55mm lens when I was testing last night. I think I could go with a higher ISO when it's somewhere darker.

Is there any difference between using the 15sec setting and using Bulb setting for the same amount of time? I can't imagine how it would be different, but I could be missing something ... I was just using the 15sec setting. I do have a shutter release cable, though, it definitely helps!
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