Category Archives: Uncategorized

From what ISO point old and new cameras start “to make noise” on light sections of a picture

There would be tested 2 cameras: -Canon 5D mark II -Canon 1D X The second camera is the newest generation of top cameras from Canon, especially is interesting to compare it to the previous generation of cameras Canon 5D Mark II. Whether you…

ISO: Is there a reduction of noise on new matrixes?

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A few technical and theoretical data on ISO (sensitivity) Light through a lens arrives on a camera sensor. On a sensor there are microlenses which focus light from the bigger square at photo cells. Photo cells convert photons in an electrical charge which…

Exposure and exposure metering

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Now, when photo-cameras are literally typed by the latest electronics many beginning photographers have the impression, that the camera is capable to define illumination of the shot and appear of re-exposure or under-light, there are feelings that somewhere the vendor of the camera…

The lenses Yashica — the catalog

I want to introduce, dear readers, the catalog of lenses of the Japanese company Yashica. About 30 years ago Yashica was the largest company in Japan, the producer of photooptics and cooperated with the German company Carl Zeiss. Not without reason the lenses…

Logos of the Soviet optical plants and some history of cameras

Union there was any marketing. Is it a logo or special trademark? To understand, whether there were other brands at the same plant it is necessary to dig more deeply. So so far we will call them logos and I will describe here…

Lens elements and focal length

Lens Elements and Image Quality The camera component referred to as a “lens” is actually made up of several different lens elements. Each of these elements plays a role in directing light rays through the camera onto the film plane or digital sensor…

All lenses of the Minolta company

This catalog removed to the general access from “A premium section”. I will try to make it convenient for all readers. Full catalogs, characteristics, pictures and personal impressions. There will be also a lot of information on old cameras which became fashionable again.…