This is how You get 1/48 shutter in ML

Started by 2blackbar, April 04, 2019, 08:09:51 PM

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Walter Schulz

Canon stores a THM thumbnail jpeg for each H.264/MOV recording session. You can use any decent photo viewer/editor and exiftool to get shutter speed, ISO, aperture, lens name (if detected) and focal length (if encoder in lens).

Skinny

Hi guys! sorry for probably a stupid question but.... I don't see "shutter fine tuning" option in the menu, my cameras are 550D and 5D2
I used search, but didn't find anything

in reply #24 dok mentioned this option on 550d

Quote from: dok on February 28, 2021, 01:19:36 PM
I also don't go to -1.03, I can only go from -1 and then -1.5.  My camera is an old 550D.

ZEEK

On the 5D2, set FPS Override to 24FPS to get 1/48.
EOS M

Skinny

Thank you Zeek! Actually, 1/48 wasn't so important to me as I wanted to find a way to fine-tune the shutter speed for shooting under electric lights (50 Hz), when I set the camera to 1/50, ML shows 1/49.95 and usually lights look normal, but sometimes unevenness is visible, perhaps the mains frequency is not always exactly 50 Hz where I live... (it's true, I measured it once, sometimes it lags noticeably)
It is also useful to fine tune the shutter speed when shooting equipment with LED and other types of displays to get rid of flicker.

But if these cameras don't have this function, it's okay

iknewblue

Quote from: 2blackbar on April 06, 2019, 09:59:55 PMIll do some comparison shots in a couple of days, i have currently 50 files raw rendering but will get back here.
In theory do You think thats possible ? We know rolling shutter delays image physically so it introduces bizarre images like when propellers spin.
So canon has to deal with 50hz and 60hz lights on top of rolling shutter delay.
Ive seen gazillion movies and they pan crapload of ttimes and blur is still dealing nicely with pans blurring everything so it still appears to not have stutter like we have in shutter 50 on canon cams.
41-45 shutter on canon looks just much more pleasing to me than 50 and resembles 180degree film camera blur more than canons 50 and 48.
And the way it affects handheld footage is great , you no longer see these tiny jittery movements.
Also i remember seeing canons shutter tests under oscilloscope to chek if theyre right and they appear right fine but isnt it the same way how 50hz and 60hz settings work, it might be synced with 50hz giving correct readout for oscilloscope but actual physical motion blur is still not big enough to resemble 180degree.
How one can achieve sync with 50hz when obviously sensor is lagging , heres interesting list
http://www.dvxuser.com/V6/showthread.php?303559-Measuring-rolling-shutter-put-a-number-on-this-issue!
8 minute mark
https://www.youtube.com/watch?v=hwRsWomRzVQ

Sorry to resurrect this zombie of a thread, but I'm trying for 180 degree shutter angle to get better motion blur as well and can't get to the settings that you have outlined, shutter speed is being pushed up to 1/80 of a sec automatically when I go for 1/41-50 on EOS M

Walter Schulz