Canon eos M Full-spectrum modification (4K)
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- čas přidán 28. 05. 2015
- This procedure took 247 minutes.
Sample timelapses shot with a Hoya R72 (720nm) filter.
Music:
Kevin MacLeod - RetroFuture Clean
Kevin MacLeod - Mechanolith - Krátké a kreslené filmy
![► Kuokkala Bridge [ᴛɪᴍᴇʟᴀᴘsᴇ] 4K ᴿᵉᵐᵃˢᵗᵉʳ](/img/n.gif)
Sweet :) We shot our last movie "my days as a woflman" on the sony A7s with shogun. pretty nice picture quality :)
Hey man, im really glad you made this video. I am thinking about doing the same on my eos-m. My goal is actually to remove the optical low pass filter. I would love to see the full non speeded up version of this video so that I can follow the steps. Do you still have the footage? Could I get it from you? Does your autofocus work 100% after the modification? Thanks. I look forward to your reply.
Sorry, this was shot in timelapse to begin with, one frame per second if I remember correctly. I did remove the low pass filter completely and did not put anything in its place. This will disable the useful dust shake feature as the filter is normally attached to the vibrating arm. It should not affect auto focus with any mirrorless camera. However it is something of a half-assed method, as it leaves the sensor with less protection and lessened protection against dust. I did not find the removal of the filter to be difficult. Getting every board, lead and screw back in its place was the hard part. Taking pictures of the process when you begin disassembly is super useful. Unfortunately my picture folder is gone as I was actually looking for it a few months back. Hope this helps.
@@samisaarela Thanks so much for this reply. Im gonna see if i can get a broken eos-m to practice on and or use as a donor if anything goes wrong. Or ill just go for it. Im still deciding. Thanks again.
do you have a guide?
Hi @sami Saaraela just a question... with this method and using screw on filters on the lens... if you record video, is it recorded all red or will it retain false colors of infrared?
I only use my eos M for raw stills, mostly doing timelapse. There are two reasons why it really isnt viable for video: (1.) Not enough sensitivity; use of high iso's with a fairly modest fullHD capable camera will result in noisy and blurry video in iso's in the 1600 range. (2.) 8 bit video is really not well suited for infrared, because the white balance only goes so far and is not intended for anything this extreme. For raw video, I'd use something that can shoot raw video (like 5Dmk3 might be the cheapest option with magic lantern).
But yes, to provide a short answer, the video comes out as red when using an infra red filter, and very deep red at that. You're basically only getting data on the red channel and you can't compensate for it with in camera white balance setting, because the setting is limited to what is needed for visible light. With raw stills or raw video you can set the WB in post and consequently you capture a lot more useful data. Lacking this range, obviously you could just turn the resulting red video into black and white and many people do that.
So the canon eos m is not full spectrum....? U have to modify it to be FS?
Where to get a replacement for the internal infrared filter?
I searched for a cheap clear filter, but eventually I didn't want to pay 60e + shipping for what is basically a cut piece of clear optical glass. So knowing I'd always focus manually anyway, I didn't bother with a replacement at all, and it all worked out well. All my lenses focus to infinity.
www.astronomik.com/en/photographic-filters/mc-glass-for-dslr-astromodification.html
Really, really late with this one. Check my other reply. To put it shortly, you don't need the clear glass with mirrorless. At least mine worked fine without. Saves you 60 bucks.
I just want to remove the low pass filter. Ist there any problem with the fokus? Does AF work? Or is there a focusproblem like with a dslr?
people have printed some housings for the original filter which was in the camera, so you can remove and insert the filter as you wish via the EF bayonet hole.
Seriously I wish Camera Manufacturers would switch to this solution... instead of putting it just above the sensor...
If I don't replace the hot mirror for a clear glass do I loose AF?
Sorry, it appears I'm 5 months late and this is probably not worth mentioning any more. With mirrorless, af can usually compensate for the missing layer on its own, so it shouldn't be a problem. Opposed to conventional dslr, where focus detection and image sensor are separate systems and would require either the clear glass or af fine tuning of some sort (I don't think the af adjustment in the menu goes far enough, if even available).
It would be better if it was done in a laminar flow hood and the focal plane was calibrated before reassembly.
how do you do this calibration? can you buy the tool used for it??
@@karloklanac5519 calibration is to measure the distance between the flange and the CMOS. This can be done by a height guage, which is a common equipment.