Anders W

OK. So the figures shown in green on the top panel are the averages I was talking about. And the figures show that ISO 125 on the GX7 is a real ISO (i.e., they are about 2/3 EV lower in the ISO 125...

Hi Mike, See here for my views on anti-shock, more generally as well as in my personal case: http://www.dpreview.com/forums/post/52275510

No the old rule is not valid for MFT if you use the actual focal length (FL). You either have to replace FL by EFL (the equivalent FL for an FF camera) or, equivalently, multiply the actual FL by...

I doubt that DPR's diagnosis is correct. Apparently, they overlooked the possibility that the problem is due to shock from the shutter movement rather than from pressing the shutter button (in...

You are certainly right about that. Thanks for spotting the error.

Good. It is reasonable on the three grounds I mention in my previous post. What you are saying is only that you personally prefer to avoid both losses with your Canon files (at the expense of...

I don't know for sure but it's a regular pattern that the lag is shorter with pre-AF than with MF. My guess is that when you pre-AF and keep the shutter button half-pressed, the body goes into a...

I have looked for more precise info on that too but haven't found any. My guess is that it's from the moment you depress the shutter button to the moment the shutter opens and it should be...

If you look at my attempt at a summary again, here http://www.dpreview.com/forums/post/52276303 you will see that I distinguish between the loss of resolution due to resampling per se and the loss...

On the GH3 yes. And most likely on the GX7 too if ISO 125 turns out to be a real ISO on that camera as it is on the GH3. If, on the other hand, it turns out to be a fake ISO (i.e., one that doesn't...

I have no trouble believing that. It is however perfectly clear to everyone that you are not picky when it comes to sharpness and have no idea of how to do proper testing. In short: You are the...

That's not so clear unfortunately. What is known is that the E-M1, in contrast to prior Oly bodies, corrects lateral CA. However, it does this not only on the 12-40 but also on other lenses from...

That may be your understanding but it is most likely the wrong understanding. That's why other people keep talking about shutter shock. Placing the camera on a tripod can be expected to help no...

As others have pointed out already, the GX7 may turn out to work the same way as the GH3, i.e., that its ISO 125 is real in spite of the fact that it is labeled "extended" (which in many other...

I didn't say that the accuracy is absolute. I said that the absolute distance is communicated. And that is what Fredrik G denied with your apparent approval. All that is required to register and...

Hi Ga, Imaging Resource provide data on shutter lag as part of their reviews (see under the "performance" tab). Here are the lag times (in fractions of a second) for some of the cameras you might...

Well, I said they should be tolerated but not as part of science. So I don't think kids should be taught "Intelligent design" as an alternative evolutionary theory at school but I do think people...

Another thing you might want to try if you haven't already is to hold the camera by the body only, supporting with your left hand on top and below the body rather than under the lens, and abstain...

Because in your case it is neither comparative nor controlled and therefore gives us a poor basis for deciding the amount of shutter-shock induced blur. You mean diffraction limits.

Sure. Shutter shock is results in camera motion. When that motion interacts with the motion of the water, you will see the pattern Big Ga describes.