taking long exposures with heavy light polloution

[RikM]

Louise, did you save the DSS output as an unstretched tiff or did you save with the screen stretch applied? If you 'Apply adjustments and save' you will get some clipping and loss of star colour. You can get better results if 'Embed adjustments, but do not apply them'. You will have to do all the stretching manually, but you will have the full pixel data to work with.

[Thalestris24]

Louise, did you save the DSS output as an unstretched tiff or did you save with the screen stretch applied? If you 'Apply adjustments and save' you will get some clipping and loss of star colour. You can get better results if 'Embed adjustments, but do not apply them'. You will have to do all the stretching manually, but you will have the full pixel data to work with.

Hi Rik

I save unstretched from DSS and do all my processing in StarTools

Louise

[WebSentinel]

I'm a complete novice when it comes to AP, so I can't comment or provide any advice but I recently came across this youtube video whilst researching how to take a good Milky Way photo - it shows how to eek out a great image from a heavy LP location such as Los Angeles - it's well worth viewing just to see the stunning Milky Way images that Ian Norman has created but there might be some good tips in there to help.

[RikM]

Nice video but the recommendations about ISO settings are a bit of red herring. The comparison shot was worse because of the 15sec exposure rather than 30sec, nothing to do with the lower ISO.