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Category Archives: Roger’s Ramblings

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 [...]

Whose Camera Will I Buy in 2018?

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I’m not really sure why, but if you want to watch the Fanboys go completely insane, the simplest thing to do it is throw out “your brand is probably going to be out of business in a few years.” But the simple reality is that’s what happens to most companies eventually, especially technology companies. Photography [...]

Wavelength-Detecting Sensor Eliminates Bayer Filter, Triples Resolution

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“Current camera sensor technology is completely backwards.” Dr. Eno Lirpa Everyone knows that in order to generate color, a digital camera’s sensor is overlaid with a Bayer filter. The filter makes each pixel sensitive to either red, blue, or green light.   Standard Bayer filter, courtesy Wikipedia Commons   Software than interpolates this red, green [...]

Roger Buys a Camera System: Refining My Choices

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In the earlier portions of this process, I have: 1) Gotten a quick idea about the relative importance of lens versus sensor resolution 2) Screened for camera systems that might meet my needs 3) Investigated the rough cost of candidate systems After some preliminary screening I had decided to investigate several full-frame and several APS-C [...]

Roger’s Law of New Product Introduction

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For several years now, my occupation has been to basically read everything written about new equipment. In order to help everyone save time, and to save the Internet millions of electrons, I have developed a concise method to summarize all such discussions for all newly introduced imaging equipment. I modestly call this Roger’s Law of [...]