Category Archives: tools

How to measure CMOS position with a dial gauge


Case You want to replace the shutter in a newer Canon camera, you will have to take out at first the sensor. And the sensor is positioned regarding the flange NOT with the help of some adjustment washers, but with … Continue reading

Posted in Canon camera, DIY, tools | 10 Comments

Dust blow gun – compressed air


I know, that there is possible to work with a hand-pump too – but trust me, the difference is HUGE. If You work with 2-3 bar, or special cases 5-6 bars, any solid contamination will be eliminated. At first, You … Continue reading

Posted in dirty, dust, tools | 3 Comments

Polishing a damaged lens – cerium-oxide


Normally I repair only Canon DSLR-s – but sometimes I cant resist to other optical devices either. I had to clean a DLP (!)  video-projector for my sons school – it was terrible, a half kg of dust in a … Continue reading

Posted in dirty, dust, lens, tools | 3 Comments

Glued screws – when the serviceman get’s angry


I have got a Sigma 300 mm F2,8 lens from a customer, which has some dirt in the inside. A lens element was dirty or some fungus on the surface. (As a supplementary information I was told, that on the … Continue reading

Posted in DIY, lens, tools | 1 Comment

DIY suction cap for lens disassembling


In fact, I didn’t wanted to make it. I just wanted to buy a tool for disassemble a very expensive lens (a Canon 85mm F1.2). Unfortunately, the tool was not available in short time. Here is the link to the … Continue reading

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