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Topics - fotojohni

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Raw Video Postprocessing / Batch Converting DNG Image Sequence
« on: October 28, 2013, 09:02:34 AM »
I'm in a bit of a bind, I have 300 raw image sequences in dng format, what is the easiest way to batch convert to DNxHD for my editor?  AE of course works and with presets its definitely pretty fast, but there's 300 of them.

All I want is to load raw into AE, apply preset, output DNxHD of same name to one big folder.  Any way of doing this?

edit: I decided to do it on the windows machine with RAWanizer, works great.

Many people are wondering just how awesome 12 and 10 bit raw will be.  Your questions will soon be answered thanks to my rudimentary maths skills.  Read on.

For cameras recording at 21MB/s (550D, 600D, 1100D)

   Max 16:9 resolution:

      12 bit:  1024 x 576
      10 bit: 1088 x 640

   Max 2.39:1 resolution:

      12 bit 1152 x 496
      10 bit 1280 x 544

For cameras recording 40MB/s (6D, EOS-M)

   Max 16:9 resolution:

      12 bit:  1408 x 800
      10 bit: 1536 x 864

   Max 2.39:1 resolution:

      12 bit: 1600 x 672
      10 bit: 1792 x 752 (max resolution in full frame mode)

For cameras recording 60MB/s (5D mk2, 50D)

   for 5D: 10/12 bit 1880 x 1058 (full frame)
   for 50D: 10/12 bit 1592 x 1062 (full)

For 5D mk3 recording at 90MB/s

   biggest gains for 60fps and 5x crop:

   Max 16:9 @ 60 fps:

      12 bit: 1664 x 592
      10 bit: 1792 x 624

   Max rez @ 5x crop:

      12 bit: 2048 x 1158
      10 bit: 2344 x 1320

Hope this clears up all the confusion.  This would be totally sweet, but it's not solving any miracles and using it comes at a cost of reduced tonality particularly in the shadows.


General Chat / Interesting new cameras
« on: April 08, 2013, 10:14:54 PM »

4K super35 sensor 14 stops, global shutter. $4000.
1080p, raw recording, super 16 sensor, $1000.

Hardware and Accessories / Rolling Shutter Fix: Tessive Time Filter
« on: April 06, 2013, 05:15:39 PM »

The price recently dropped to under 2K, this is a novel way of dealing with rolling shutter and it improves the over all look of each frame as well.  The reason for this is that it ramps the shutter open over a period of time, rather than opening it up all at once, or in the case of dlsr's, all at once but progressively, line by line.  The result is that light trails and other strong lights have less of a hard stop to them. 

The only thing we need to allow this to work on canon DSLRs is a genlock function.

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