Blue varnish for steel. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Blue varnish for steel. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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To prepare blue varnish for steel, dissolve 4 part of borax in 1 parts of water, heat to a boil and, with constant stirring, add a solution of 5 parts of white shellac and 5 parts of alcohol. Then add methylene blue dye to the desired shade.

Cleaned steel objects are coated with this varnish.

Author: Korolev V.A.

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Problems with CANON and NIKON digital cameras 31.12.2005

CPA manufacturers talk about possible problems with their products.

It all started with a statement from Fujifilm, now it has been followed by such giants as Canon and Nikon. Although, in case of confirmation of the presence of the malfunctions described in the statements, they promise to fix the latter free of charge, it’s still a troublesome business, and it’s already somehow unpleasant to be the owner of a “time bomb”, even if the malfunction has not yet manifested itself.

So, Canon has announced possible problems with some DSCs and digital camcorders using CCD matrices. A manifestation is the complete absence of an image or distortion in the image. The probable cause is the destruction of the connecting conductors in the matrix under the influence of high temperature or humidity.

DSC models that may have the problem are PowerShot A60, PowerShot A70, PowerShot A75, PowerShot A300, PowerShot A310, Digital IXUS V3, Digital IXUS II, Digital IXUS lis, the same can be observed in MV600i, MV630i, MV650i, MV700i camcorders , MV730i, MV750i, MV5i, MV5i MC, MV6i MC, ZR60, ZR65 MC, ZR70 MC, ZR80, ZR85, ZR90, Elura 40 MC, Elura 50. Three Nikon models may have different problems. Autofocus may not work in F55. The D70 may freeze with the green memory card access light blinking and not responding to any controls.

A "bunch" of possible problems with the D2H: the exposure meter indicator can "false", the exposure values \uXNUMXb\uXNUMXbcan "get stuck" in some values, as a result of which the pictures may be under- or overexposed. Plus, autofocus may not work.

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