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 Some DIY aerochrome experiments on my self-converted full spectrum M5 | |
To begin with, I found this very detailed M5 tear down article on the internet:
https://www.ifixit.com/Teardown/Canon+EOS+M5+Teardown/133466
What is missing from the ifixit tear down is how to opening the sensor assembly. LifePixel has an instruction on converting a EOS M3, the very last section on opening the sensor assembly can be applied to the M5 too (not recommending converting a M3 though since its AF pixes creates faint lines across the photos):
https://www.lifepixel.com/tutorials/infrared-diy-tutorials/life-pixel-canon-m3-diy-digital-infrared-conversion-tutorial
This gave me great confidence to open the camera and convert it to full spectrum myself. It turned out to be quite easy, and just make sure to separate the screws and make some notes. Be extra careful while plugging on and off the ribbon cables since they are really fragile.
I bought a full spectrum filter glass from High Point Scientific. They say it fits both M3 and M5, but unfortunately it is noticeably bigger than the original IR block glass and is not an exact fit without modification. My suggestion is just removing the IR blocking glass, and keeping the dust cleaning glass. Then one can use a JJC EF to EFM drop-in filter adapter to compensate for focus difference caused by the loss of the IR blocking filter. The nice thing about this adapter is that it has the same thickness as the non-dropin adapter, so once a filter is installed, the camera can focus to infinity even without the IR blocking glass.
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