Shutter Shock: My ep5 is bad. Would an em5 do better?

Started Jan 26, 2014 | Discussions thread
DonSC Senior Member • Posts: 1,032
Re: Shutter Shock: My ep5 is bad. Would an em5 do better?

Anders W wrote:

Just in case you didn't already know, Paulmorgan (alias Alumna Gorp alias Silvernitrate) is the number-one shutter-shock denier on the forum. Judging by the evidence we have this far, no rational argument will make him change his mind.

As the number-one shutter-shock claimer on the forum I'm not sure if you're not throwing rocks while living in a glass house on this one. Surely you can do better than a personal attack.

In this particular case, it's very hard to reconcile the shutter speed of 1/250 with an image which is entirely blurred. At those speeds the second curtain will be closely following the first curtain, so a good part of the sensor (and image) will have been exposed before the first curtain closes. As the Imaging Resource piece which you cite as support for your shutter shock claims makes clear, if the entire image is blurred at 1/250 then the blurring is inconsistent with the theory that the burring is being caused by internal vibrations induced by the shutter/first curtain. Put another way, since non-uniform blurring was the prime piece of evidence cited so support the speculation that the blurring was being caused by the shutter, uniform blurring such as found refutes the idea that the blurring is being caused by the shutter.

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