Teardowns and Disassembly

How a Ballhead Works

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This will probably be of limited interest to most of you, but we like to know how things work, not just how well they work. Since we haven’t had any lenses or cameras to take apart lately, we thought we’d take a couple of pictures when we disassembled a ballhead in case any of you […]

Lenses and Optics

First Look: Zeiss CZ.2 70-200mm T2.9

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Ah, as if the 70-200 zoom field wasn’t crowded enough, with each camera maker having one or four along with the Tamron 70-200 f/2.8 VC and the Sigma 70-200 f/2.8 OS, but Tyler decided we have to stock yet another one. So today I have to test yet another 70-200mm, the Zeiss 70-200 T2.9 CP.2. […]

Lenses and Optics

Sharpening Maps and Masks

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Obviously I’m a gearhead, so I like to know the traits of the lenses I shoot with. I want to know what aperture gives maximal corner sharpness, for example, whether the plane of focus is curved or flat, where the distortion changes in a zoom, which end of the zoom range or focusing distance is […]

Humor and Sarcasm

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 […]

New Items

Leica M (Type 240) Resolution Comparison

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First and foremost, let’s be very clear: I am not a rangefinder shooter and certainly not a rangefinder reviewer. But I’m more excited than most people about the new Leica M (Typ 240) camera for one simple reason. It has live view and focus peaking so at long last I can, if I want, actually […]

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