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Search: Posts Made By: Tramm Hudson
Forum: Canon EOS Full Frame for HD June 20th, 2009, 12:03 PM
Replies: 25
Views: 6,337
Posted By Tramm Hudson
Paypal link

Thanks to everyone who has offered donations. The software will be free when it is released next week and if you want to donate to help with the development, I've setup a dvinfo PayPal donation...
Forum: Canon EOS Full Frame for HD June 20th, 2009, 07:26 AM
Replies: 91
Views: 37,247
Posted By Tramm Hudson
The Canon firmware has the analog MGAIN register...

The Canon firmware has the analog MGAIN register in the AK4646 set to +20 or +29 dB by default and the ALC was typically selecting digital gains in the +20 dB range.


The ALC recovery timers and...
Forum: Canon EOS Full Frame for HD June 20th, 2009, 06:51 AM
Replies: 25
Views: 6,337
Posted By Tramm Hudson
And last night I stumbled on the left/right audio...

And last night I stumbled on the left/right audio levels in the DIGIC IV rather than the mono one, so it now has dual audio meters. I'm still not happy with the ballistics and the sampling time for...
Forum: Canon EOS Full Frame for HD June 19th, 2009, 05:45 PM
Replies: 27
Views: 4,584
Posted By Tramm Hudson
Is it on in the stock firmware? My recent beta...

Is it on in the stock firmware? My recent beta was supposed to enable it, but I think that the bits in the digital filter select 1 register were not configured correctly.

If you have more time...
Forum: Canon EOS Full Frame for HD June 18th, 2009, 10:48 AM
Replies: 27
Views: 4,584
Posted By Tramm Hudson
The AK4646 has a digital 5-band EQ that might be...

The AK4646 has a digital 5-band EQ that might be usable for this -- the frequency, bandwidth and gain are all selectable for each of the bands. I believe they are all initialized to 0 dB gain and...
Forum: Canon EOS Full Frame for HD June 17th, 2009, 08:33 PM
Replies: 27
Views: 4,584
Posted By Tramm Hudson
Yes it does. By disabling the hotplug_task() it...

Yes it does. By disabling the hotplug_task() it disables the A/V jack, the HDMI plug and the USB port. It would be possible to re-implement the task as part of the Magic lantern firmware (like I...
Forum: Canon EOS Full Frame for HD June 17th, 2009, 08:09 PM
Replies: 27
Views: 4,584
Posted By Tramm Hudson
"Good news everyone!" I have loop-through...

"Good news everyone!"

I have loop-through mode working, so live audio monitoring via the A/V jack works! And, since my firmware over-rides Canon's hotplug_task(), plugging in a connector to the...
Forum: Canon EOS Full Frame for HD June 17th, 2009, 12:20 PM
Replies: 60
Views: 19,170
Posted By Tramm Hudson
In the Canon EF version there is both an AF/M...

In the Canon EF version there is both an AF/M switch and a clutch mechanism that needs to be pushed or pulled to engage the manual focus ring. So there are really two states that work and two that...
Forum: Canon EOS Full Frame for HD June 16th, 2009, 10:11 PM
Replies: 27
Views: 4,584
Posted By Tramm Hudson
Also very encouraging is that the spec sheet for...

Also very encouraging is that the spec sheet for the AK4646 shows how to put it into loop-through mode, with the output after digitization and processing being fed directly to the digital output...
Forum: Canon EOS Full Frame for HD June 16th, 2009, 07:18 PM
Replies: 27
Views: 4,584
Posted By Tramm Hudson
Measuring audio noise levels with and without ALC

I have some audio samples that I've recorded with the Magic Lantern firmware using a JuicedLink CX231 and a mix of microphones with the 5D Mark II's ALC turned off. Unlike the Beachtek DXA5D "pilot...
Forum: Canon EOS Full Frame for HD June 16th, 2009, 01:21 PM
Replies: 60
Views: 19,170
Posted By Tramm Hudson
I have the Sigma 20 mm f/1.8 and don't really...

I have the Sigma 20 mm f/1.8 and don't really like it. The fall off is really very pronounced on the full frame and the focus motor is loud and slow. Not having full-time manual focus is a drag.
...
Forum: Canon EOS Full Frame for HD June 6th, 2009, 06:05 AM
Replies: 15
Views: 4,825
Posted By Tramm Hudson
As long as I don't want to use the USB...

As long as I don't want to use the USB interface*, this works fine. I can plug my headphones into the jack and it does not trigger the switch to the external interface. That's great news; I can now...
Forum: Canon EOS Full Frame for HD June 6th, 2009, 05:59 AM
Replies: 15
Views: 4,825
Posted By Tramm Hudson
I won't be able to test that until I'm back at my...

I won't be able to test that until I'm back at my lab. For triggering the video events while on the road I am plugging my iPod headphones into the jack to cause it to produce the events. Here is...
Forum: Canon EOS Full Frame for HD June 6th, 2009, 01:58 AM
Replies: 7
Views: 3,316
Posted By Tramm Hudson
I had noticed there was support for A:/ (the CF...

I had noticed there was support for A:/ (the CF card), B:/, which must be the external USB, and C:/, which appears to be a NVRAM filesystem internal to the camera. I don't see anything that opens or...
Forum: Canon EOS Full Frame for HD June 5th, 2009, 04:18 PM
Replies: 15
Views: 4,825
Posted By Tramm Hudson
I haven't been able to test it yet, but I believe...

I haven't been able to test it yet, but I believe I have found the functions that turn the audio IC on and off, and the code that calls to turn it off after playback. Once I have the "Err 70" bugs...
Forum: Canon EOS Full Frame for HD June 2nd, 2009, 10:59 AM
Replies: 18
Views: 4,501
Posted By Tramm Hudson
My usual workflow involves two or more cards on...

My usual workflow involves two or more cards on the set. After shooting a few takes, the card is replaced with a fresh one, the "exposed" card goes to the rough-cut editor who moves all of the image...
Forum: Canon EOS Full Frame for HD June 2nd, 2009, 08:27 AM
Replies: 18
Views: 4,501
Posted By Tramm Hudson
You are correct that it will need to be on each...

You are correct that it will need to be on each card; opening the card slot reboots the camera. RIght now it is about 1.7 MB, but almost all of that is alignment padding and cruft left over from the...
Forum: Canon EOS Full Frame for HD June 2nd, 2009, 08:24 AM
Replies: 8
Views: 1,975
Posted By Tramm Hudson
My 8GB SanDisk Extreme III card was prone to...

My 8GB SanDisk Extreme III card was prone to locking up the camera with the full-buffer meters. About five other users on another forum reported the same problem with the same make and model CF...
Forum: Canon EOS Full Frame for HD June 1st, 2009, 09:50 PM
Replies: 46
Views: 17,909
Posted By Tramm Hudson
Magic Lantern firmware bootstrapped with 1.1.0

Canon didn't add any protection mechanisms, so it was fairly easy to bootstrap the Magic Lantern firmware onto the 1.1.0 release. I don't have very many functions mapped yet, just the few necessary...
Forum: Canon EOS Full Frame for HD June 1st, 2009, 07:17 PM
Replies: 46
Views: 17,909
Posted By Tramm Hudson
I'm flashing it now and will report when I have a...

I'm flashing it now and will report when I have a dump of the ROM's for further analysis...

EDIT: It looks like manual control in video mode only works when "Movie Display" is selected. In...
Forum: Canon EOS Full Frame for HD May 31st, 2009, 10:19 AM
Replies: 14
Views: 6,342
Posted By Tramm Hudson
While it isn't quite as simple as the video...

While it isn't quite as simple as the video camera technique, it has the advantage that you can save the images for effectively unlimited white balance presets. This gives you repeatability between...
Forum: Canon EOS Full Frame for HD May 29th, 2009, 11:48 AM
Replies: 15
Views: 3,976
Posted By Tramm Hudson
Even the phase-detect autofocus...

Even the phase-detect autofocus (http://en.wikipedia.org/wiki/Autofocus#Phase_detection) systems only work at near full aperture (typically f/4 or faster), so it is not too surprising that the...
Forum: Canon EOS Full Frame for HD May 29th, 2009, 08:16 AM
Replies: 51
Views: 16,875
Posted By Tramm Hudson
After 24p and PAL, headphone monitoring has to be...

After 24p and PAL, headphone monitoring has to be one of the most requested features. It remains to be seen if the AK4646 is wired up to be able to drive the A/V jack while recording. The other...
Forum: Canon EOS Full Frame for HD May 28th, 2009, 05:29 PM
Replies: 21
Views: 3,996
Posted By Tramm Hudson
Official new name: Magic Lantern

The new firmware project has an official name now:Magic Lantern firmware. It turns your 5D Mark 2 into a "5D Mark Free".

Based on advice I received, and a desire to avoid Canon's trademarks, the...
Forum: Canon EOS Full Frame for HD May 28th, 2009, 03:11 PM
Replies: 18
Views: 4,501
Posted By Tramm Hudson
This is one that might be difficult due to the...

This is one that might be difficult due to the way that Canon has hardcoded the event handling into a giant switch statement, rather than traversing a datastructure created at runtime.

But, I have...
Showing results 201 to 225 of 238

 


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