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Messages - Boboche

#1
Any reasons why there's no builds for the 5d2 anymore? I've scrubbed the forums and while there was pink issues at the beginning, it looked like if everything was working fine?, I see the post above states its only 14bits but at some point there were still some features partially working, what's wrong exactly? Impossible to do due to architecture or more work needed?

cheers,
#3
Ok so what I compiled here when I called hg clone etc.. .was the nighly?  How do I get the 2.3 baseline?
#4
Because I'm trying to figure out what is the diff between my compiled 400-something Kb 550D firmware, the 2.9MB "all" compile and the 1.6MB version from the 550D of the ML 2.3 version. 

#5
Sorry for my "noobism" but:

make unified
make: *** No rule to make target 'unified'.  Stop.


#6
I've downloaded the VM located at:

http://chdk.setepontos.com/index.php?topic=6161.msg85604#msg85604

(which is the VM#3 mentionned here: http://magiclantern.wikia.com/wiki/Build_instructions/550D)

Did the command:
hg clone -r unified https://bitbucket.org/hudson/magic-lantern/ && cd magic-lantern


When compiling I'm getting a load of "warning: Interworking not enabled" warnings... from what I've read thats normal...

Seems to compile the autoexec.bin but its 412K (550D.109) compared to the 1.6MB from the official ML 2.3 downloadable binary.... isn't the unified supposed to be the same as the downloadable binaries? Features disabled or am I missing something else?

Thanks

#7
Hello all,

Yes this looks like a lazy topic, but after fighting with the compiler on windows/cygwin (and failing) for too long, and assuming the same will probably happen if I repeat with a fresh ubuntu install, I was wondering if anyone manage to make an updated VMWARE image...or clear, working step-by-step instruction to update the old vmware image to the stable 2.3 build?

Thanks all!

#8
That's why I said Near uncompressed (i.e. use much higher bitrates than what's possible with standard 30-60FPS recording since it's going to be capturing much more slower).

I'll put a shutter mechanism (i.e. toggling actuator) to trip the LCD sensor.   I'm good with electronics, but C++ is really not my thing. 

Thanks a million for your help!
#9
The functionality is there, the problem is the incompatible event flow...

I'm wondering if I get my hands on a Code ninja, I'd assume the hardware is exposed enough to compile a firmware where we could LCDsensor trigger  + HDR video Timelapse (timelapse being triggered by LCDsensor not by timer).

Since it would be a slow process, codec could be set near uncompressed.  That would actually be the best approach other than removing the actuation hardware...

I'll check the scripts to see what's exposed but I would assume that what I need requires a code ninja....

#10
Hello Francis,

No problems :), I know I'm throwing a lot of variables and brainstorming at the same time, and I might get confusing a little.

I don't have it under control because I cannot use the intervalometer, like I stated above, this is not a regular event/flow.  It requires external triggering (i.e. LCDsensor) else I will miss or double expose shots or shoot moving parts, etc... can't start scrubbing this in post-prod manually (over 100,000s frames... , and also I will have missed some, which I can't). 

The external triggering makes 100% sure I won't get any garbage content NOR miss anything.

The other thing is HDRvideo limits me to 1080p with already compressed content... Ideally I would want more than 1080p resolution so static shots, if possible.   

If there's a way to do frame-by-frame HDR video shooting with LCDsensor I completely missed that.

Thanks for your patience ;)
#12
Quote1) Not sure what you are asking here. Can an external trigger stop and start video recording? Yes.

I meant being in HDR video mode, and use triggering to record a single frame (well multiple frames at different iso exposures).  So essentially build the equivalent of a timelapse VIDEO where each frame would be captured at different intervals (i.e. triggered by LCD sensor). 

Example: Video HDR bracketing iso 400 and 3200.  LCD trigger, Frame 1 and 2 recorded.  Wait for another LCD trigger then add Frame 3 and 4...

About the 1s recording, that is not an issue, we can put garbage data or do this process until reaching 1s... whatever... that doesn't matter I can correct/extract in post.

Quote2) Your camera would probably not work at all if you removed it. You would get ERR2s or whatever the shutter failure message is.

That can be bypassed electronically, its a sensor, a resistance value or a cherry switch somewhere that requires shorting, so not an issue for me. 

QuoteThere is no such thing as an electronic shutter on a CMOS-sensor cameras. Here is a good post on another forum talking about the differences and rationale of CCDs/electronic shutters vs CMOS/physical shutter. They are talking about flash sync speeds but the info still applies.

Ok so what I could do to work around this is put everything in the dark, remove the shutter and sync the light source like if it was a shutter, put the proper lumen output to balance everything out... hmm.. complicated but still better than paying for an overpriced framegrabber that will output less quality...

QuoteWhat is your end goal here? HDR timelapse with no shutter actuations?

HDR with no actuations, replacing Timelapse with external trigger.
#13
Ok then lets approach this from another angle...

1. Can the camera and known firmware and limitation support the building of a video with frames assembled from external trigger and varying ISO exposures? i.e. HDR Video with external (i.e. LCD sensor) trigger?

2. What happends if I remove the shutter mechanism altogether and shoot, is canon using the electronic shutter on standard picture taking or sorely relying on the mechanics?
#14
Ok, 2 questions for you based on what you just wrote:

- What's the Liveview raw buffer data structure? uncompressed? Raw? Jpeg? What do you mean by "image quality is limited" other than resolution? I'm using a 550D.  Now that I think of it, I guess it doesn't use the ISO setting I've set the camera to right?

- Is there a way to keep the mirror up between exposure? Worst case scenario I could always detach it from the camera once it dies if that's the only show stopper...
#15
Hello everyone,

I've been following the CHDK and Magic Lantern development for some time, and I must say, what you guys did with the 550D (T2i) is amazing.... so amazing in fact that it might be the perfect solution for a project I am working on. 

I need to shoot anywhere between 5,000 and 100,000 images per "cycle", which is something I usually do with framegrabbers.  This would obviously kill any DSLR in less than a day. 

My need is to shoot at various exposures (HDR) with external triggerting without killing the camera. 

So essentially, I would like to use HDR bracketing, LCD sensor, mirror lock up,  AND electronic shutter altogether.

I've managed to get the HDR bracketing triggered with the LCD Sensor (love it!), so I can put some electronics there to automate the acquisition, I tried the silent picture and mirror lock up, but I can't seem to find the way to take pictures without triggering any mechanics (maybe its the liveview? automatic setting in HDR?). 

The setup would be static (no need to refocus or do anything else other than taking pictures)  Lighting could vary but be compensated by various EV stops in the HDR bracketing and fixed in post.

Also I was reading on the main page that the silent mode is limited to 2 megapixels, but in the menus I see more resolution when doing 2x2, 5x5, etc.. is it a lack of update in the features list or am I missing something?

Thanks all!