I should be better at accepting defeat. Knowing your personal failings is one thing. Overcoming them is another. So I tried one more time to tame the s7R shutter shock in portrait orientation. I ditched the Arca Swiss C1 entirely, and mounted the vertical post from a RRS pano setup directly on the tripod deck…. [Read More]
Archives for 2014
Comparing Sony a7 and a7R sharpness, part 4
Continuing in my portrait-orientation shutter vibration mitigation experiments, I removed the cable tie from the setup of the preceding post. There was no change to the test images. That was a relief. The cable tie made it difficult to focus the lens, and I didn’t think such an attachment would be a good field solution… [Read More]
Comparing Sony a7 and a7R sharpness, part 3
In an attempt to ameliorate the a7R portrait-orientation vibration blur in the preceding post, I made two modifications to my setup. I cinched the lens to the support with a cable tie (shown before the ends were cut): And I put a two-pound weight on the bottom of the camera: The result was an improvement… [Read More]
Comparing Sony a7 and a7R sharpness, part 2
Ready for an unscientific experiment? Set up a sturdy tripod and head as if you were going to make a photograph, but don’t mount your camera on the head. Make sure there’s plenty of room around you. Make a fist. Holding your hand about a foot above the clamp, bring your hand down smartly, but… [Read More]
Comparing Sony a7 and a7R sharpness
We’ve seen that the a7R is affected by shutter shock. We’ve seen ways to ameliorate those effects. We’ve seen that the a7 is essentially free of shutter shock effects by virtue of its electronic first curtain shutter. What if we put all that together and consider the question, “At its worst shutter speed, is the… [Read More]
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