a77 elaboration speed

Started Aug 23, 2014 | Questions thread
Edward Sargent
Edward Sargent Veteran Member • Posts: 4,693
Re: a77 elaboration speed

If you take a long exposure, say 15min. Take another with the cap on for the same length of time. Of course take 20 long shots at 15min each you only need 1 with the cap on.

You then combine the two shots in software, I think with a 50% bleed though. It is important that the cap on shot be taken at the same outside air temp so don't wait until you go inside.

The concept is that the noise is random and combining the cap on shot with the actual shots the noise will cancel out.

Sarge
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