View single post by Robert
 Posted: Sat Jul 25th, 2020 03:34
Robert



Joined: Sun Apr 1st, 2012
Location: South Lakeland, UK
Posts: 4066
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With more recent bodies I have found there is negligible battery drain from leaving the camera turned on throughout a session, so I don't quite see the concern about the very short start up delay.  I have never been able to beat the startup time, even with the D1, by the time the camera is to my eye and I press the shutter release the capacitor is charged and it fires the shutter.  The only issue was the first D1-D1X battery I built with 18650 cells I used wire which was too thin and created a resistance to the main capacitor, once I had replaced the wire with a heavier size it was perfectly OK.  Indeed I have occasionally left cameras turned on for days and found the battery drain has been insignificant, not that I am recommending the practice because I think it could be bad for battery health.

Using the D300S for time-lapse over six weeks I became tired of swapping out batteries, I was rotating five EN-EL3 batteries  I could see the difference in capacity between the batteries, indeed one died during that session, I eventually used a mains power source which obviously fixed the battery problem but I still had to swap out the CF cards regularly.



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Robert.