Unaware that you were doing a dark exposure, the camera takes another "dark"
exposure with same shutter speed as the original one for doing noise
correction.
This happens with any long exposure (1 sec and over?) if you set the noise
correction on.
Dario
----- Original Message -----
From: "Don Williams" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, November 18, 2005 5:40 PM
Subject: Long Exposure *ist D
Hi all,
Today I did an experiment to check noise at ISO 1600. I capped the lens,
put the camera in a black bag and made a series of exposures 20, 40, 60
and 80 seconds. But this is the interesting bit:
After the first exposure the shutter wouldn't trip a second time. I took
the camera out of the bag and saw the egg timer was displayed. It was
almost a minute before it disappeared and the camera was back to normal.
This happened after every long time exposure. Does anyone know why this
should be? Why should the buffer unloading itself to the card, or whatever
it is that is happening, take so long to complete?
Don
--
Dr E D F Williams
_______________________________
http://personal.inet.fi/cool/don.williams
See feature: The Cement Company from Hell
Updated: Print Gallery -- 16 11 2005
