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Re: Limb corrections using a reflective artificial horizon
From: Greg Rudzinski
Date: 2014 Nov 6, 09:08 -0800
From: Greg Rudzinski
Date: 2014 Nov 6, 09:08 -0800
Dave,
You ask:
"Regarding the semi-diameter question, if I shoot using a natural horizon, then I need to +/- one semi-diameter, 16’. If I’m shooting limb to limb using a tray of oil, do I +/- 16, 32, or 64’?"
After dividing by two then you have Hs. Treat as a standard Hs and apply semi diameter of 16'. Don't forget to correct Hs for refraction also.
Greg Rudzinski