This is a continuation of applying the new shutter shock testing regimen first proposed and used in the last post this time to the Sony a7R and another 135mm lens. The reason there was no post yesterday was that I made some error – I’m still not sure what – that made some of the… [Read More]
Archives for January 2014
Testing the D800E with the ISO 12233 target
A couple of months ago, before I got started on the Sony a7R Odyssey, I was looking for a way to compare a photograph of the ISO 12233 target made with electronic flash to one made with a continuous light source. The idea was to use the electronic flash to find out what the target… [Read More]
Comparing Nikon D800E and Sony a7R shutter shock
In order to compare the a7R and the D800E’s sensor-level shutter release blur, I combined some of raw images from the last three posts into two images that show both camera’s performance with the same vertical and horizontal scales. To review, the two setups were: Zeiss 135mm f/2 APO Sonnar ZF.2 on a Nikon D800E,… [Read More]
D800E shutter & mirror slap testing with an oscilloscope, part 2
Yesterday, I reported on camera vibration with the Zeiss 135mm f/2 APO Sonnar ZF.2 on a Nikon D800E in landscape orientation. See that post for details on the test setup. Today I show results with the camera in portrait orientation, flipped on its left side using the RRS L-bracket. The direction of the oscilloscope trace… [Read More]
D800E shutter & mirror slap testing with an oscilloscope
I set up this gear: Zeiss 135mm f/2 APO Sonnar ZF.2 on a Nikon D800E, RRS D800 L-bracket, Arca Swiss C1 Cube, RRS TVC-44 legs. Release with electrical contact closure from Cognisys rail controller. ISO 100, lens set halfway between f5/6 and f/8. The resultant images were processed in Lightroom with default settings except for… [Read More]
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