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Messages - koljanych

#1
Quote from: theBilalFakhouri on December 26, 2023, 07:02:28 PM
For users who have 500D or 550D, please make recording tests in 12-bit and 10-bit in different video modes and frame rates, and don't forget to share you results!

550D

canon mode 1080p25
mlv_rec 1280x720
14 bit: 134, 132, 123 frames
12 bit: 159, 184, 186
10 bit: 252, 282, 277

canon mode 720
mlv_rec 1280x432
14 bit: 218, 200, 196 frames
12 bit: 250, 266, 280
10 bit: 372, 393, 351

a mlv  is played normally by raw_twk.mo

in general the results are very similar to raw_video_10bit_12bit_LVState-wip.2018Feb04.550D109

images: https://disk.yandex.ru/d/66wB-lVlDTRmeA
#2
what do you think about Canon XC Protocol ?
#3
In the second case (MLV), all color information is linear. in the first case, the range is compressed, gamma correction is performed (709, LOG, HDR PQ)
Thus 10 bit MLV will store a smaller dynamic range than 10 bit LOG. The shadows will be dark, without detail. But automatic compression to the LOG can lose some details, highlights that are important and that will be present in RAW
#4
Quote from: ozzyCDN on May 04, 2020, 11:50:16 PM
my T5i as a webcam

you can use HDMI capture card
#5
General Chat / Re: Wikipedia just deleted
April 26, 2020, 03:27:17 PM
A handful of incompetent humanities decided to remove technical information. Where does this world go?
#6
Reverse Engineering / Re: Canon 7D Factory Menu
June 23, 2019, 08:05:41 AM
color bars will be useful for connecting an external equipment
#7
Quote from: theBilalFakhouri on March 08, 2019, 10:29:23 PM
By using FPS override to lower frame rates like 12FPS the performance of write speed increases,  but why?

memory access takes many cycles. the less access to memory, the more cycles for disk operations
#8
Camera-specific Development / Re: Canon 700D / T5i
September 21, 2018, 03:48:50 PM
Quote from: theBilalFakhouri on September 19, 2018, 07:11:16 PM
Feedback please.

could not use in practice, the resolution are changing chaotically. most often the recording is done with the settings from the mlv_lite module