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Category Archives: Roger’s Ramblings

There Is No Perfect Lens Test, Either

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In my last article, I wrote about the fact that every copy of a given lens has some bit of sample variation. This affects lens reviews, whether lab-based or photography-based, because the copy they tested will be just a bit different from the copy you buy. I suggested, that if you want to get a […]

Fun with Color Vision

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I’ve been doing a lot of technical things lately, writing up our repair data and investigating methods of reducing optical variation in lenses. So I thought I’d take a bit of a break and write a post about something fun. Human vision is always fun to me, since it’s an area where I can apply […]

Photography Consumer’s Bill of Rights

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In 1962, then President Kennedy presented to the U. S. Congress a Consumer’s Bill of Rights. The second and third points of this Bill are as follows: (2) The right to be informed–to be protected against fraudulent, deceitful, or grossly misleading information, advertising, labeling, or other practices, and to be given the facts he needs […]