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Messages - JohnBarlow

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1
Feature Requests / Re: Custom Crops in H264 Recording?
« on: November 09, 2013, 01:35:09 AM »
Is it possible --- Yes/No?

2
Feature Requests / Custom Crops in H264 Recording?
« on: November 07, 2013, 05:54:44 PM »
Is it possible to have the same crop modes as RAW when recording H264?

3
Feature Requests / Re: Iris/Aperture pulls
« on: October 25, 2013, 09:32:58 PM »
Will this value affect the damping?, if not the overshoot will still be present?

4
Feature Requests / Re: Iris/Aperture pulls
« on: October 25, 2013, 05:06:05 PM »
A step change would be awesome ....

PS Sorry I should add that the purpose of Aperture pull is to quickly increase/decrease DOF. So it is a kinda focus pull but via aperture.

5
Feature Requests / Iris/Aperture pulls
« on: October 25, 2013, 04:53:40 PM »
Manual Exakta lenses on the Canons have the neat feature of being able to perform aperture pulls by pressing the button on the extended arm which is on the lens. This can also be operated by a shutter release cable allowing the lens to open up or close down in an instant.

When pulling aperture on the Canons the Auto ISO tends to overshoot or undershoot.

Examples:
Light a scene to F2.0 ISO 100, pull aperture to F5.6 ISO 800 -- the Auto ISO undershoots by going dark first and then levelling out to correct exposure.

Light a scene to F2.0 ISO 100, pull aperture from F5.6 ISO 800 to F2.0 ISO 100 -- the Auto ISO overshoots by going bright first and then levelling out to correct exposure.


I would like to see a feature in ML to remove this undershoot/overshoot behavior by essentially increasing the damping or time constant in the Auto ISO controller.

Please let me know if this useful feature can be implemented.

best, John


6
Feature Requests / Re: 1.2:1 Aspect Ratio for Anamorphic Raw
« on: October 17, 2013, 12:33:15 PM »
I support this request and I also wish for the 6:5 ratio at full sensor height resolution

7
Feature Requests / Re: Can ML communicate to devices outboard of camera?
« on: October 17, 2013, 03:33:17 AM »
Thanks guys, you just made my day !!!


So ML can speak PTP through the USB, well waddiya know, thats fantastic

8
Feature Requests / Can ML communicate to devices outboard of camera?
« on: October 16, 2013, 06:56:38 PM »
I am looking at an outboard motor driven follow focus device and wonder whether ML can be used to control it.

I am thinking maybe ML can communicate thru USB for sending and receiving control commands to this device.

Can someone expert in the ways of ML tell me if this can be implemented?

9
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 18, 2013, 10:36:16 PM »
Can someone up a pic of the card speed test with a 95MBs card?

10
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 14, 2013, 06:34:47 PM »
Thank you for a very precise answer

11
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 14, 2013, 05:33:47 PM »
@mixer2

Got them, Thank you very much.

Can you confirm my current understanding?

Crop mode is about 3x, giving a recording sensor width of 22.5/3 = 7.5mm

720p would give about 2/3 of that resulting in a recording sensor width of 5mm

Is my calculation correct? Thanks

12
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 13, 2013, 08:24:04 PM »
@mixer2

Thanks for your time, it has convinced me to get an EOSM with MLRAW,
 
who needs a Black Magic pocket cam? :)

13
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 13, 2013, 05:15:05 PM »
@rush, @mixer2

Thanks, very useful information on the crop modes, better aliasing in crop mode and maybe a sharper lens can improve things. The 22mm is supposed to have very sharp centre performance

To summarise in 3x ML crop mode you can
1 record h264 at 1080p, no PDR required
2 record RAW at 720p with a 95 MB card and use PDR

14
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 13, 2013, 03:36:39 PM »
One more question

Can you record avchd in 3x crop mode or is is just for RAW record?

15
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 13, 2013, 03:35:26 PM »
Impressive!, what card did you use?

unlimited

16
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 13, 2013, 03:34:39 PM »
Thanks
I  got 2897 Frames at 1280x720 24p, with 32gb sandisk extreme 45MB/s (=> the sd-controller is the bottleneck).
i'll do the flower testshot in few mins... just have to finish some work first.

17
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 13, 2013, 02:58:37 PM »
I dont have EOSM, so can someone say what is max number of frames @24p 1280x720 in crop mode?

With fastest card

Thanks

18
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 13, 2013, 12:41:21 AM »
Hi mixer2,

a 2 sec raw file of a flower or similar would be most appreciated, at your convenience of course.  Something I could evaluate and also try some PDR on

Thanks

1024x768 (31,4 mb/s) or maybe 1088x816 (35,5 mb/s)... i would choose 1024x768 to be sure that it doesn't stop or skip frames after some minutes. the few extra pixels at 1088x816 shouldn't make much difference in quality. ml says continous recording ok, but for me it stopped after ~2 mins with 1088x816.
i can upload some 1024x768 sample shots tomorrow if they may help to judge the quality.

19
Tragic Lantern / Re: Tragic Lantern for EOS M
« on: August 12, 2013, 02:00:36 PM »
Can someone say what is the largest 4:3 size that can be recorded in crop mode at 24p

I dont have EOSM.

20
Raw Video / Re: Eos M Raw Video Recording to UHS-I SD Cards?
« on: August 11, 2013, 10:11:01 PM »
Can someone say what is the largest 4:3 size that can be recorded in crop mode at 24p

I dont have EOSM.

21
Tragic Lantern / Re: Uncompressed 600D Raw Video
« on: June 18, 2013, 11:26:46 PM »
LOL

I have advised countless times against the sraw hack, but that's all I can do. Sorry.

22
Tragic Lantern / Re: Uncompressed 600D Raw Video
« on: June 18, 2013, 11:21:26 PM »
***BUG ALERT***

Excuse me if this has already been reported.

When using the camera without ML on a card, my camera will not allow me to change resolution. It says SRaw and I just get a screen with colored boxes even after power down, remove battery etc.

I have to completely reset the camera to gain normal functionality which is a royal pain. Seems like some work has to be done to resume the camera resources.

23
This suggests its a LQFP64 type

http://www.uscomponent.com/a/AD80246BBCZ-AD80246XBCZ.html

600D detail photos: http://g3gg0.de/gallery/600D_closeup/

btw - i want a datasheet of this device.
anyone who can find out more about this device?
its not listed anywhere, just some internal lifetime lists from Analog Devices accessible from the web.
it seems its a custom chip, not disclosed anywhere. :((

i expect this to be the ADTG with a lot of CMOS readout timings and AD converter integrated.



24
Tragic Lantern / Re: Uncompressed 600D Raw Video
« on: June 17, 2013, 02:19:04 PM »
This is incorrect

Twixtor has to make 24 frames each sec, because each of those 19 frames is at the wrong temporal position
So the result is 100% Twixtor

12p is best -- Twixtor only needs to tween 1 extra frame per sample 12p --> 24p only 12 frames needed per sec. so the result is 50% Twixtor



so twixtor will create one new frame for each four existing frames



25
Tragic Lantern / Re: Uncompressed 600D Raw Video
« on: June 16, 2013, 06:05:36 PM »
Good test

Shows almost zero jello from 12p :)


The same test in the same conditions, without the zoom x5 crop. I wanted to test the reaction of Twixtor with pan/tilt :


I've made my workflow for the shooting of my short :

- H264 1080p@24fps cinestyle for fast moving scenes and rapid workflow (no conversion)
- RAW 1468@12fps 2.35 for static or slow scenes, or pan/tilt camera with static scenes :
          - Rawmagic to convert Raw to DNG
          - import DNG in AE as 12fps
          - insert in 24fps timeline, with twixtor effect to create in-between frames
          - export in ProRes 422HQ or 444
          - edit in FCPX, export in ProRes
          - Uprez to 1080p (for the parts shot in RAW) in AE with Instant HD

With my tests on my MBP core i7 16GB ram, the Twixtor step is x13 real time, and Instant HD is 7,5x RealTime.

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