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Messages - mucher

#1
Camera-specific Development / Re: Canon 7D
October 03, 2014, 08:45:48 AM
I haven't been following for a while, so it might be a huge task to follow up. May someone spare a second to kindly tell me if that 1/3 stop reduction in highlight register trick in 7D been solved (I forgot what it was called)?

Oh,  correct. I found it here:
http://builds.magiclantern.fm/#/features
EXPO_ISO_DIGIC is called, isn't it? Unsolved.
#2
I remember that g3gg0 once mentioned that you can import all the dng/cdng sequences into AE, then save AE project, then import the AE project into Premiere. It works for me, thanks, but I am not much a user.

BTW, MLviewer couldn't convert to dng in my PC
#3
Curiously enough to ask if that means that we will not need to press 5X button to go into full pixel mode RAW recording in the future?

If somebody "accidentally" finds how to port these raws through that jpg pipeline...and, combining with that 1/3 stop highlight reduction, and... wrap it with sound into MLV format...I have dropped down in bed to think more about it. Ciao ;)
#4
Quote from: Pelican on March 28, 2014, 01:20:31 PM
If you want to continue the port: https://bitbucket.org/Pelican/7d.205/commits/all
The compiled autoexec.bin freezes on the camera.

Too bad to hear that, I really wish that I could work on codes, but I don't think that I have possessed enough skills to be able to do that, so my fingers are crossed.
#5
I remember that, several months ago, one of the contributors posted some codes for 7D 2.0.5 in 7D RAW thread, it might need a simple recompilation, but the post sank very deep later.
#6
Tragic Lantern / Re: 7D Raw Thread
January 29, 2014, 04:43:30 AM
I feel really hesitated to ask, but any news on porting to firmware 2.0.5?
#7
Tragic Lantern / Re: 7D Raw Thread
December 12, 2013, 05:11:17 AM
I don't know if it is appropriate to say it here, but after upgrade to 7D's latest firmware 2.0.5 from Canon, I was no longer able to boot into ML, the camera was just dead. I had to  pull the battery for 10 seconds to revive that thing (without ML card in it). I deleted the ML directory and autoexec.bin from the root directory, but still could not boot with the camera, so the only solution is to format the card before put it into the camera, but I have loads of photos and movies in the card which I don't want to delete for now.

Any remedy? I am not sure downflash the camera to earlier versions would help.

So prewarning: if you want to keep ML on 7D, don't flash to Canon's firmware 2.0.5.
#8
Tragic Lantern / Re: 7D Raw Thread
December 10, 2013, 12:16:49 PM
#9
Tragic Lantern / Re: 7D Raw Thread
December 10, 2013, 12:06:24 PM
I am still wondering if it is possible that ML could borrow some codes from CHDK and export the RAW sequence, namely raw recording, without the need to go into crop mode, or, even, export jpg sequence directly, namely 5K video output. :D
#10
Tragic Lantern / Re: 7D Raw Thread
December 07, 2013, 02:44:55 PM
I calculate the sensor area used like this: Assuming that 5184 is the horizonal width of all the 7D sensor, 2054 horizonal resolution will mean: 2054 / 5184 x 22.3(mm) = 8.836 mm, if you use aspect like 2.35:1, the vertical area used in the sensor will be like 2054 / 5184 x 22.3 / 2.35 (the aspect ratio) = 3.76 mm. So you can see that ML can only use a tiny fraction of 7D's sensor. The diagonal length is like 9.6 mm, maybe only slight bigger than camcorders like XF300
#11
Tragic Lantern / Re: 7D Raw Thread
December 06, 2013, 04:11:49 PM
Loaded Britom's single buffer version and let it run till card's full, and the single buffer needs to be enabled in the Raw Video's advanced submenu. The Single buffer is slight faster than the double buffer version and seemingly much more consistent.

Haven't got any chance to field test the RAW video yet. Wish that there could be more options between 2054 to 2521, seeming under 2.35:1 and 2.39:1 aspects, 7D can get to something like 21XX x XXX

#12
Tragic Lantern / Re: 7D Raw Thread
December 02, 2013, 08:18:36 PM
I personally, without any supporting evidence, think that this pink frame issue is caused by hardware. If you remember the news that 7D will sometimes mess up two pictures into one when 7D comes out, I believe that is the reason. It might be caused by CPU or DMA chanel is not coping fast enough. So, if it is hardware, the issue will be innate, and there is no way to be fixed by software. One feasible solution might be to reduce to write speed below the threshold (if there is any) for pink frames. Based on these above speculations, I have a hard time to understand 7D's buffer technologies, it might be good for those titan cameras to squeeze out some extra MBs, but for a slow camera like 7D, most people, for example me :D, might rather stay with 1728 x XXX resolution without expecting any miracles to happen soon, just to choose the safe side. So the buffer technology that is employing on 7D recent build might be way way way too aggressive for that poor camera. :D

It has been long time in my chess, but it is only speculation so it is just to speak out my chess.
#13
Tragic Lantern / Re: 7D Raw Thread
November 27, 2013, 01:50:55 AM
It comes out like a lightning in a flash. If CHDK's code can be borrowed to ML, ML can actually steal the whole area of photo shooting into raw sequence, namely 1:1 raw video ;D
#14
The several times that I have test shot with ML raw video shows that ML raw recording is quite savy on battery, a fully charged battery can last pretty long time (say an afternoon plus). That is unexpected because I have piles of batteries in stock (some were prepared for the flashgun).

Btw, anyone knows how to get CHDK working on 7D? I have some quite slow old cards lying around, and I am contemplating shooting dng instead which is directly stolen from some buffer inside the 7D, for I don't trust Canon for its CR2 very much.
#15
Tragic Lantern / Re: 7D Raw Thread
November 18, 2013, 05:10:23 PM
Quote from: CaronteGF on November 18, 2013, 03:03:10 PM
Thank you very much.
One last question. At 1080p 24fps (Official Canon I mean), is the record some like continous? (Obviously untill 4GB/Max Fat32)

I haven't tried it continuously this long. But theoretically, provided the stock h.264 capture is around 48Mb/s and there is a limit of maximum minutes that 7D can record (say 5 or 10 minutes? I have to consult the manual), I reckon that the recording might very likely cut itself out way before it reaches the 4GB limit. So technically speaking, 7D is more like a still camera with limited capacity for video capture rather than a video camera.
#16
Tragic Lantern / Re: 7D Raw Thread
November 18, 2013, 01:07:15 PM
7D is now doing like 2054x XXX @2.35:1, at around maximum 77 - 82 mb/s in crop mode, but that crop factor is 5184/2054 x 1.6 = 4.038, that means that 7D will lose that wide angel side. To compensate, running to maximum 25XX x 1XXX will require the write speed over 110mb/s, which is around almost 50% more throughput than it is now.  At 2.5k, it will acquire a crop factor like 5184/2500 x 1.6 = 3.3, so a ultra-wide lense like EF-S10-22 will get a horizonal viewangel equivalent to approximately 33mm, which will make 7D quite amiable.
#17
Tragic Lantern / Re: 7D Raw Thread
November 17, 2013, 05:40:09 PM
ExFat can improve write speed? Maybe yes, it is not sure, but definitely you need to disable FAT32 support first -- these are totally based on speculations. ;D
#18
Tragic Lantern / Re: 7D Raw Thread
November 17, 2013, 02:00:45 PM
G, I am not sure of that exFAT speed, but FAT32, that EOS7D uses, is rumourly known to have a huge file table or something that jams the CPU's L2 or L3...... 8)

I actually meaned to have 2 things: exFAT, AND, more write speed. Excuse my ambiguity.
#19
Tragic Lantern / Re: 7D Raw Thread
November 17, 2013, 02:34:45 AM
I really wish that Canon can issue new firmware to unlock exFAT and give 7D more write speed.
#20
Tragic Lantern / Re: 7D Raw Thread
November 14, 2013, 01:30:13 PM
Hi, Britom,

I have tested 2 indoors shots before, one with the contrast set to 0, the other with the contrast set to -4, which is the less contrast EOS allows to set, and both shots were shot with RAW_rec.mo and converted to video by AE through camera raw.  It has been noticed that: the one shot with contrast=0 has significantly less to unnoticeable vertical bandings, while the other has fairly obvious bandings in the dark areas.  So the little experiment shows that settings like contrast (and probably WB...off topic already) might have very significant impact on the RAW captures which in form is in *.raw files. But higher contrast settings have not been tested yet.

Hope this will help. ;D
#21
Tragic Lantern / Re: 7D Raw Thread
November 11, 2013, 05:21:17 PM
1% seemingly have said that exFAT filesystem is existing in 7D's firmware, but obviously broken, so he might somehow need a 128gb CF card to test with.

#22
Tragic Lantern / Re: 7D Raw Thread
November 11, 2013, 04:54:35 PM
Quote from: dfgh on November 11, 2013, 04:47:32 PM
Here is something I shot recently using ML 7D RAW

http://vimeo.com/79097919

Looking fantastic and beautiful. May I know if you have used the VAF filter?  Because I do worry a little about the moire effect on 7D, but the VAF filter price tag is outrageous for a poor student like me, and it is in back order. Great thanks.
#23
Though quite some people say that it is changing sensor, but I don't believe it very much. Changing a 5D sensor costs around $1000, changing a rare species like C100's sensor changes for $500 dollars? I would say no way.
#24
Tragic Lantern / Re: 7D Raw Thread
November 05, 2013, 06:17:15 PM
I would not call ML a hack, and it is more like an application running on top of the camera's OS, just like IE on top of MS Windows. And it should be perfectly legal software too, because Canon encourages these kinds of developments by issuing developing kits (not for free man). The codes, with a fraction that I read--but I am not computer science major, only read some books in this field for a few years in my spare time, look quite neat and well documented with //comments.  I think that the ML teams guys are well-trained and they know what they are doing. This project looks better and better, and it sounds very promising.  I would congrate them all.
#25
Tragic Lantern / Re: 7D Raw Thread
November 05, 2013, 02:03:29 PM
I am thinking of the same thing, there should be more options than 24/25/30fps, and more options in resolutions than from 20xx directly to 25xx too, and it is a better thing before having found ways to let the camera chewing out extra few kb/s ;D