| Re: Photographing star trails
Sounds like you have your aperture too wide and getting over-exposed shots. I was using f5.6 for a 30 second exposure. For a 90 second exposure I'd try f11 or even f16.
Good luck - let us know how it goes...
Dave P.
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(a.k.a. "Horizontal Dave")
"A good man is hard to find, especially if he's hiding. In a field. With combat fatigues and a false beard." - Wilson Dixon |