Uploaded 2-Jan-15
Taken 2-Jan-15
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Photo Info

Dimensions1100 x 1660
Original file size295 KB
Image typeJPEG
Color spacesRGB
Date taken2-Jan-15 21:09
Date modified2-Jan-15 20:25
Shooting Conditions

Camera makeRICOH IMAGING COMPANY, LTD.
Camera modelPENTAX K-S1
Focal length15 mm
Focal length (35mm)22 mm
Exposure30s at f/4.5
FlashNot fired, compulsory mode
Exposure bias0 EV
Exposure modeManual
Exposure prog.Manual
ISO speedISO 800
Metering modePattern
Jan 2 - 1st attempt at stair trails

Jan 2 - 1st attempt at stair trails

I've never done star trails or astrophotography of any sort. It was below freezing tonight and so this was shot through a dirty window. I used 10 frames of 30 seconds each and merged them in CS6 by changing the layer mode to lighter color for all but the bottom layer. I thought it worked reasonably well for a first attempt.