I posted sharpness test results with and without EFCS with the Zeiss 135mm f/2 APO-Sonnar here. EFCS seemed to make a significant difference at shutter speeds from a few tenths of a second to a hundreth or so. Some people have reported no improvement with common zoom lenses. I thought I’d try the AF-S Nikkor… [Read More]
Archives for July 29, 2014
EFCS on the Nikon D810
Before I get to how the electronic first curtain shutter (EFCS) on the D810 works, it will be instructive to look at how the all-mechanical focal plane shutter operates. Here’s a photograph of an analog oscilloscope with the time base set to 0,5 milliseconds/division. EFCS was disabled, and the shutter speed was 1/1000 second: … [Read More]