LewisM
25-09-2012, 03:06 PM
Or, as an alternate title, Disassembling your DSLR...
I have had a BAD trigger on a Canon 40D for MANY years - so bad sometimes you just cannot make it fire. I plan on modding this with a cooling case, IR cut sensor etc to make it a dedicated astrocam (I have my 5dMkII for usual use, and it is also a GREAT astrocam surprisingly, though needs cooling too). I sw online a way to clean the trigger, which requires COMPLETE disassembly, and went to it.
There are LOTS of screws. LOTS. And all different length and thread. LOTS. Disassembly was SIMPLE, and cleaning was child's play (I used propanol on the trigger pad plates - lots of oxidation and grease came off). Reassembly was not so... I had forgotten where some screws went, and by the time I had realised where I went wrong, I had stripped the head on one screw, rendering taking one panel off again impossible. So, i went with what I had, and only have 4 screws left over. It's solid, so shouldn't fall apart any time soon, and functions FLAWLESSLY now.
Now to get the Baader IR plate in and do that - seems only need to remove the front plate, so no issue there.
Maybe i'll dry ice cool the camera like they used to with the hyper-film cameras years ago :) (may not be as silly as it sounds, if I can rig an external power source in lieu of the battery).The Canon tech manual shows one :)
I have had a BAD trigger on a Canon 40D for MANY years - so bad sometimes you just cannot make it fire. I plan on modding this with a cooling case, IR cut sensor etc to make it a dedicated astrocam (I have my 5dMkII for usual use, and it is also a GREAT astrocam surprisingly, though needs cooling too). I sw online a way to clean the trigger, which requires COMPLETE disassembly, and went to it.
There are LOTS of screws. LOTS. And all different length and thread. LOTS. Disassembly was SIMPLE, and cleaning was child's play (I used propanol on the trigger pad plates - lots of oxidation and grease came off). Reassembly was not so... I had forgotten where some screws went, and by the time I had realised where I went wrong, I had stripped the head on one screw, rendering taking one panel off again impossible. So, i went with what I had, and only have 4 screws left over. It's solid, so shouldn't fall apart any time soon, and functions FLAWLESSLY now.
Now to get the Baader IR plate in and do that - seems only need to remove the front plate, so no issue there.
Maybe i'll dry ice cool the camera like they used to with the hyper-film cameras years ago :) (may not be as silly as it sounds, if I can rig an external power source in lieu of the battery).The Canon tech manual shows one :)