Micro Four Thirds Focal Reducer Shootout

Started Feb 20, 2014 | Discussions thread
tomtom50 Veteran Member • Posts: 3,244
Re: Given your clear vested interest in the results......

dougjgreen1 wrote:

How can we know that you tested equally representative samples of each of these items? Other than the Light Cannon, which is clearly an inferior product, the differences - especially between the Speed Booster and the Lens Turbo, are quite subtle and could easily be explained by sample variations.

How do we know you didn't test a cherry-picked sample of the Speed Booster? It's fairly common practice to use an internally screened sample of one's own product for benchmarking purposes.

How would a tester know they had equally representative copies of two products? In theory he could buy a large number, test them until some sort of bell curve emerged, and compare using median samples.

I think we can safely assume that wasn't done as it would be cost-prohibitive merely to back up a forum post!

On the other hand he disclosed himself as the designer, and Lens Turbo performed pretty decently in the test. He has earned the benefit of my doubt.

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