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Old 15-08-2007, 01:51 PM
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MortonH
Deprived of starlight

MortonH is online now
 
Join Date: Nov 2006
Location: Sydney
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I assume you want just the umbral phase? It lasts approx 3.5 hours from 18:50 to 22:20 I believe. Using very rudimentary maths (which may be completely wrong), I would guess that the moon would move 360 x (3.5/24) = 52 degrees during that time. I'm not sure what focal length gives that much coverage, but you could roughly work it out by measuring 52 degress of azimuth from your location and then seeing what lens will be wide enough. I'm sure someone more technical than me will work this out properly.

I imagine the moon will be pretty small in the shots with a relatively wide angle lens. I'd be tempted to shoot the moon with a long lens or telescope and add it to a foreground shot digitally. Whether you keep the relative size of the moon realistic is up to you!

Morton
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