File :-(, x, )
Anonymous
how do I won at star photography?

Seem like everytime I try, I fail hard. If I use 200mm, I get trails. If I use 50mm prime, I get too much ambient light. Pic related.
>> Anonymous
your lens is only sharp in the center of the field at full aperture.
stars dimmer than 9th magnitude are visible (10 times dimmer than what you could see with your eye in a very dark sky), quite good. take lots of short exposures and stack them to build signal to noise ratio
>> Anonymous
>>83130
but how do I stacked multiple exposure with moving stars?
>> Anonymous
Equitorial Mount + DeepSky Stacker (Program)

Other than that, its star trails or nothing :)
Have fun
>> Anonymous
>>83174
no it isnt you idiot
there are several pieces of software to do this for you
iraf is one of them, you can do it in shop as well, NIH image , XV, etc...
>> Anonymous
>>83157
you need a tracker to eliminate star trails
>> Anonymous
     File :-(, x)
>>83130how do I stacked frames
i dunno lol

Camera-Specific Properties:Camera SoftwareAdobe Photoshop CS MacintoshImage-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution72 dpiVertical Resolution72 dpiImage Created2005:07:06 13:21:03Color Space InformationUncalibratedImage Width958Image Height796
>> Anonymous
>>83225
Could probably even use panorama alignment software like hugin/autopano.
>> Anonymous
>>83225
Show me a program that autoaligns the stars and corrects for the earths rotation in the software.

Stacking images works fine without a mount if you want star trails, But I've yet to see one that auto corrects your alignment
>> Anonymous
>>83248
iraf was mentioned already, or check out the sbig web site or maybe google it newfag