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Messages - homeros

#1
Quote from: iazz on August 07, 2014, 07:52:27 AM
Hi everyone,

I installed Nightly2014Aug02.7D203 successfully and played around with it.  I noticed that after removing the CF card and putting it back in, the camera won't start when setting the power button to ON.  I need to remove the battery to recover from that situation.  I couldn't find anything about this issue neither in the bug reports nor in this thread, hence this post.

Anyway, great thanks for the fantastic work!

After opening the card door, always wait for LED confirmation (or for 5 seconds) before removing the card!!! During that period, Canon firmware accesses the card without turning on the LED, and if you remove the card too early, the camera will freeze and will drain the battery. Exception: 550D users don't have to wait.

http://www.magiclantern.fm/install.html
#2
I'm not expert but I was wondering. Is it transfer speed to card that preventing record in higher FPS or just sensor won't let it? If it is transfer speed then can be pictures shrink to low resolutions with bicubic or bilinear interpolation (Instead of line-skipping) in camera then save to card. With this we can eliminate moire and aliasing at least mostly. It might be discussed earlier or not. Because it might be stupid idea, I don't know.

There is one more idea that might be stupid. Can HDMI connection be used for transferring raw data like Alexa's T-Link? As you know Alexa uses dual link SDI as a data connection to Codex. May be HDMI connection can use for something like that. HDMI 1.0 has 5.0 Gbit bandwidth in theory. 5120x2700 (5K) 14 bit 24p raw fits in that limit. I know still need a compatible device that hasn't been invented yet. Just ideas...
#3
Quote from: Walter Schulz on July 26, 2014, 09:56:51 PM
I'm not sure if your question is answered because the post you just answered wasn't intended as an answer to your post.

Oww :) I thought it was for me. I noticed a line;

"You cannot shoot full-HD (1920x1080) RAW in non-crop mode, it's a limit of the way the sensor is read"

Then I remember that document. And I thought 7D allowing only 1726 lines vertical and 1156 lines horizontal most. Is it wrong? I mean can I record 2048x820 px continuous 24p in no crop at least in theory? Or these are the limitations, top limits?
#4
Quote from: Walter Schulz on July 26, 2014, 05:57:35 PM
awgthtgtta?
http://www.magiclantern.fm/forum/index.php?topic=9848.msg121701#msg121701

Ok, I missed that post. I checked raw capabilities document but I was not fully understand "no crop max resolution". I thought it was about bandwidth limitation. That answers my question. Thanks.
#5
Hi everyone, I'm new in ML forum.

I mostly interested  with raw video capabilities of 7D. The think that I'm understand 7D's raw resolution limitation is all about bandwidth of cf cards and/or 7D's CF connection that does not allow more than 80 MB/s. And this is roughly (1728 x 972 px) x (14 bit) x (24 frame/s) continuous. And this equation is about 67-70 MB/s. Well, is this mean I can record continuous with 2048 x 820 px or something like 1990 x 845 px resolution (Almost same data rate but more close to 2K DCI standard) raw video with 7D?

P.S: I'm asking because I'm going to buy fast CF card if only this works.