Resolution measurements - TZ30 (ZS20) - Many images

Started Apr 3, 2013 | Discussions thread
OP J C Brown Senior Member • Posts: 1,617
Re: Resolution measurements - TZ30 (ZS20) - In sights into how to test..

karlreed wrote:

Sadly, I stopped teaching software testing almost five years ago;  if I was still teaching, I'd be using your approaches (and Ken Rockwell's) to get students thinking about how to test.

In this case, you have put a huge effort into getting resolution tests that are as useful as the best professional results, and, they involve techniques we can use ourselves with a little difficulty.

What's more your images relate to images we may actually capture, in that we can see the colours and the image size as it is.

Warm Regards, and, I may even get one of these cameras just for fun.

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karl reed


Thank you very much for your interest and for your very complimentary remarks.

I am delighted to hear that you think that I’ve succeeded in creating a resolution test chart which in addition to being relatively straightforward to use allows acceptably accurate measurement of the B&W and colour resolution of digital cameras.

If you are interested in knowing more about the development and use of the chart you may find the following posts of interest. See: “Dpreview's OM-D E-M5 Review, Second thread” and

With regard to your suggestion that "I may even get one of these cameras just for fun" I think that you might be pleasantly surprised by the quality of the results which can be obtained with such a small easily pocket-able yet very versatile camera.



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J C Brown

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