Author Topic: Canon EOS M  (Read 440638 times)

Teamsleepkid

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Re: Canon EOS M
« Reply #1250 on: July 15, 2017, 12:23:42 PM »
looks like it made it into one of the new experimental builds. very cool. so being able to frame in 5x zoom mode is super useful. anyone ever notice? or am i way off base here? i have no scientific proof but...5x crop mode seems to have tighter grain? makes no sense. and also seems less noisy for sure. maybe a little brighter? it definitely looks better than regular "crop mode". try it. 5x crop mode is cleaner in low light i swear to god. I've done lots of tests. i do them for myself though and i always delete them. just looking for someone else to corroborate this claim..
EOS M

Danne

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Re: Canon EOS M
« Reply #1251 on: July 15, 2017, 12:38:56 PM »
Cool if so. I use my eosm with crop_rec all the time recording 12bit with audio. Those files comes out golden. Chroma smooth set to --cs2x2 and ran through dfort focus pixel lists through bouncyball pixel map in mlv_dump and we get clean dng's.
Don't forget about darkframe averaging and files comes out even better. All baked in cr2hdr.app :)

Digby

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Re: Canon EOS M
« Reply #1252 on: July 15, 2017, 01:34:51 PM »
please can someone give a direct link to ML 2.03 for canon EOSM? I know its not finished testing yet, just want to try it.. been following links and hunting the forum but cant seem to find an active download.. many thanks :)

Danne

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Re: Canon EOS M
« Reply #1253 on: July 15, 2017, 04:14:20 PM »

loknar

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Tv Lens
« Reply #1254 on: July 16, 2017, 09:46:54 AM »
Hi,
if I understood correctly, when shooting raw video, most of you are using (one way or another) crop mode in either telephoto mode (with EF-M lenses) or you are using some short focal length C-mount TV lenses. Is there a list of usable (and affordable preferably) lenses (i'm looking for sub 15mm)? Problem with C-mount is that there are two versions and most seller cannot (or don't want to) differ between them, talking about C-mount and CS-mount, same thread but different flange distance (CS 12.5 mm, C 17.5 mm) so CS is pretty much unusable since it's impossible to focus it.

Danne

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Re: Canon EOS M
« Reply #1255 on: July 16, 2017, 10:31:30 AM »
I have a used sigma 10-20mm f3.5 which works good for the price paid. Of course you will also need a canon ef converter to mount the lens.

Teamsleepkid

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Re: Canon EOS M
« Reply #1256 on: July 16, 2017, 11:18:14 AM »
I've got c mount lenses. 25,12.5,8.5 and 6mm. i think pretty much any of them will work in crop mode. 3x or 5x crop mode. i had a 4.5mm lens and that one even worked. i broke it though. c mount lenses don't seem to focus to infinity though... at least mine don't . i haven't made any modifications to them. also they are all over the place. I've got 1",3/4", 1/2" they all close focus no problem. wide angle infinity focus seems soft to me. not terrible though. more resolution and we would be in serious territory. im still waiting for compressed raw. then we are talking better than a7sii in sharpness territory. I've got one of those too. and sometimes i prefer the 100 dollar M to it.
EOS M

dfort

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Re: Tv Lens
« Reply #1257 on: July 16, 2017, 10:22:04 PM »
...Problem with C-mount is that there are two versions and most seller cannot (or don't want to) differ between them, talking about C-mount and CS-mount, same thread but different flange distance (CS 12.5 mm, C 17.5 mm) so CS is pretty much unusable since it's impossible to focus it.

CS isn't C. The CS lenses are designed for small surveillance cameras. You can use C mount lenses on a CS mount camera with an adapter but not vice-versa.

c mount lenses don't seem to focus to infinity though... at least mine don't .

They should -- mine do.

The EOSM isn't the best camera to shoot raw video though it is fun trying. There are development branches that allow you to shoot H.264 proxies along with mv1080 raw video. Best set up a compiling environment if you want to have some real fun with the EOSM.

... im still waiting for compressed raw. then we are talking better than a7sii in sharpness territory...

Cool. We're all waiting for you to get this started.
EOSM.202 EOSM.203 EOSM2.103 700D.115 5D3.*

Teamsleepkid

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Re: Canon EOS M
« Reply #1258 on: July 17, 2017, 10:15:39 AM »
dfort i always thought you were a great guy. sorry if i made you mad. you have always helped me a lot. nothing but respect. i have no idea how to code anything. i just see tremendous potential in the little eos m so im wishing out loud.
EOS M

dfort

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Re: Canon EOS M
« Reply #1259 on: July 17, 2017, 05:58:21 PM »
@Teamsleepkid

What makes you think I'm angry? Insane, maybe. All I'm doing is trying to get some of the more advanced users, like you, to compile ML instead of waiting for someone else to do it. Once you can roll your own you'll be able to try out some of the more experimental branches. In addition, if you want to regress to an earlier version you can pick which commit to go back to. You don't need to change a single line of code to do any of this. Download the SourceTree app and watch ML development nearly real time. Just clone the ML repository using this URL: https://bitbucket.org/hudson/magic-lantern

If you are on Windows my Cygwin tutorial makes it super easy. On Mac I just updated the install script so it is pretty much automatic once you make /usr/local writeable. The scripts even clones the repository and sets you up on the unified branch. You can switch branches, merge and even poke around in the code if you want. If you muck things up simply delete your local repository and re-clone it.
EOSM.202 EOSM.203 EOSM2.103 700D.115 5D3.*

loknar

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Re: Canon EOS M
« Reply #1260 on: Yesterday at 08:50:57 AM »
I have a used sigma 10-20mm f3.5 which works good for the price paid. Of course you will also need a canon ef converter to mount the lens.

That looks fine, but it's way out of my price range (around $400 here), also with adapter it's not so light combo with EOS M anymore.

I've got c mount lenses. 25,12.5,8.5 and 6mm. i think pretty much any of them will work in crop mode. 3x or 5x crop mode. i had a 4.5mm lens and that one even worked. i broke it though. c mount lenses don't seem to focus to infinity though... at least mine don't . i haven't made any modifications to them. also they are all over the place. I've got 1",3/4", 1/2" they all close focus no problem. wide angle infinity focus seems soft to me. not terrible though. more resolution and we would be in serious territory. im still waiting for compressed raw. then we are talking better than a7sii in sharpness territory. I've got one of those too. and sometimes i prefer the 100 dollar M to it.

Could you elaborate on manufacturers of these lenses? I managed to find some from Tamron and Fujinon.

CS isn't C. The CS lenses are designed for small surveillance cameras. You can use C mount lenses on a CS mount camera with an adapter but not vice-versa.

I don't say it is, i'm saying that the only difference is in flange distance, and some sellers do not make difference between C and CS mount, hint would be size of an image circle, 1/2" being borderline size (at least i understood that from wiki).

Anyway I ordered this Tamron 8mm for 2/3" sensor http://www.tamron-usa.com/IO/IndOp/prod/23fm08l.php when it arives i'll do some tests and post results in case someone else is solving the same problem.

EDIT: mistype

bakersdozen

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Re: Canon EOS M
« Reply #1261 on: Yesterday at 01:04:48 PM »
That looks fine, but it's way out of my price range (around $400 here), also with adapter it's not so light combo with EOS M anymore.

Could you elaborate on manufacturers of these lenses? I managed to find some from Tamron and Fujinon.

I don't say it is, i'm saying that the only difference is in flange distance, and some sellers do not make difference between C and CS mount, hint would be size of an image circle, 1/2" being borderline size (at least i understood that from wiki).

Anyway I ordered this Tamron 8mm for 2/3" sensor http://www.tamron-usa.com/IO/IndOp/prod/23fm08l.php when it arives i'll do some tests and post results in case someone else is solving the same problem.

EDIT: mistype
Keep us posted on your results.

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