Author Archives: canonrepair

About canonrepair

Ruzsa János. Amatőr fotós, Canon DSLR váz. Amateur photographer. Canon DSLR user.

Canon EOS camera error codes and messages


original here: https://cpn.canon-europe.com/content/education/infobank/camera_settings/eos_error_codes_and_messages.do   And here is a copy from the official Canon site, case you don’t find the original.   Camera settings: EOS Error codes and messages When using your EOS camera you may occasionally get an error code … Continue reading

Posted in Canon camera | 4 Comments

Canon battery grip – how to take off


My customer had a Canon camera – and the (original Canon)  battery grip was no more possible to be taken off. This type of grips have a big actuator wheel for the fixing screw – which unfortunately is made of … Continue reading

Posted in Canon camera, grip | 2 Comments

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

Optical alignment


Cementing a Doublet: Opto-Alignment Technology, Inc. https://www.youtube.com/watch?v=cl6K-EXPILo   SmartAlign for lens alignment and assembly processes https://www.youtube.com/watch?v=D6KDGPw4-y8   Canon EF Lens Plant – Lens Assembly Process https://www.youtube.com/watch?v=4Oyud3EA9kE   Lens Handler Operations https://www.youtube.com/watch?v=_eHnrxYyb5k

Posted in lens | Leave a comment

The mystery of NO FOCAL LENGTH on flash


The customer has got a used Tamron 17-50 F2,8 lens, and realized that using with a Canon strobe, there is no change on the strobes display, it shows always 17mm focal length. I was sure that there has to be … Continue reading

Posted in Canon lens, Tamron lens | 7 Comments

Canon 5d MkII – error code 20 : shutter…


… or not the shutter?!? One of my customers has a 5d MkII. Time to time the camera stopped working with error code 30 after shooting. This is a general error code: “ Err 30Description: A malfunction with the shutter … Continue reading

Posted in 5d2, Canon camera, shutter | 2 Comments

Solvent for the cemented lens (not with canada balsam)


Case You want to dismantle a glued (cemented) lens, try to use this: 70% dichlor-methane https://en.wikipedia.org/wiki/Dichloromethane 20% methanol and 10% ammonia solution (I think 40%). Be carefull, dont swallow them, they all are dangerous.. After ca 1-2 days of soaking, you … Continue reading

Posted in General topics | 2 Comments