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3D 3K 12-bit RAW camera project
  • 133 Replies sorted by
  • zcreamzcream

    You will find that my modified FlyCapture2 is faster than the stock one. I turned off one unnecessary debayering.

  • jsfotografiejsfotografie

    thx :-) this project is so much fun :-) i also startet with sörens thread :-) but i was more after slow motion than 4k/3k and the 720p/120fps scales easily to 1080p :-)

    one think i learnd is that for fast framerates you need a very very beeefy pc im using an i7 3770t and raid0 ssd and can record continuous 720p 120fps at 12 bit :-) i build everything in an cnc machine case with an 10" screen i was the first with 10" not the black magic ursa ;-) here in action http://instagram.com/p/ezhCAjI8BL/ and here the 10" touchscreen http://instagram.com/p/gqfSS4o8Gb/

    cheers janosch

  • TrackZillasTrackZillas

    @jsfotografie Great footage.. I would love to join in and start a DYI project as well but don't really know where to start. Any tips, or steps would be greatly appreciated.

  • jsfotografiejsfotografie

    great project zcream im also working on this and sören is a friend of mine but hes busy :-) playing more with the bmcc and the bmpc 4k ;-) tomorrow i will try your flycap2 with my flea 3 and report back that would be so cool when i can now write .dng directly from flycapture! at the moment i wirte .raw and then convert HELL of a work :D also you see fit in c++ and programming any chance for a new gui? just like the gui sören was mentioning in his thread? if i can help drop me a line amazing times :-) here are some of my clips https://vimeo.com/search?q=miniraw1 cheers janosch

  • zcreamzcream

    I replace the DNG save as a part of the RAW option - as DNG is just a wrapper for the RAW file. This version will have the sub-folders. https://www.dropbox.com/sh/5con0ud84033pdj/i1PWrSiUUx/FlyCap2.exe

    It should also be a wee bit faster due to optimizations SSE2 and MT/MP.

  • gangstak2gangstak2

    The 64-bit version looks good. No stippling.

    I noticed that DNG is no longer listed as an output format. Selecting RAW causes the program to record DNGs.

    I also noticed that images are no longer saved into automatic sub-folders.

  • zcreamzcream

    @gangstak2 64-bit version. Can you test this one for stippling ? https://www.dropbox.com/sh/5con0ud84033pdj/33qtRDelYq

  • photomanphotoman

    @zcream The Apple computer...you can get a PC and do a duel boot with Fedora or Ubuntu. Then use a virtual box to use the Apple operating system within Fedora. It's like a bootcamp on an Apple, except with Fedora. I think you can use any operating system.

    I've installed a dual boot of Fedora on a PC. It came from the factory with Windows 8.

    I've never tried the Virtual Boxes; I've read about them. It might be worth looking into, though.

  • zcreamzcream

    :-) Its the price I'd be worried about.

  • Vitaliy_KiselevVitaliy_Kiselev

    Interesting 3D camera - http://www.codexdigital.com/products/action-cam

  • gangstak2gangstak2

    Setting the red and blue white balance to zero results in an extremely green image. It's so green that DNG Profile Editor fails to create a color recipe. Even with a properly exposed image, it gives me the error message, "Unable to check white balance using grey patches." Presumably the software will only stretch the white balance a certain amount.

    When I choose a white balance that looks decent in FlyCap, such as 500/700, DNG Profile editor is successful in creating a color recipe.

    Regarding the gain, I see the merit in avoiding digital gain. But for monitoring purposes, would there be any way to turn up the gain in FlyCap without affecting the DNGs?

  • zcreamzcream

    Set Gain and WB (red and Blue) to zero. PGR only offers digital gain. And you can achieve all this in post anyway. With Brightness set to 0. Now can you shoot a color chart and generate a DNG profile in the profile editor ?

  • gangstak2gangstak2

    The latest build works. The initial white balance in Photoshop is now closer to what I'm seeing in FlyCap, but the images are still coming in overexposed. I can compensate for this with a negative exposure adjustment, but I'm often left with discolored highlights.

    Screen Shot 2014-03-27 at 12.42.29 AM.jpg
    756 x 481 - 48K
  • zcreamzcream

    Try the latest build. It will save the first frame as all white data. So save at least 2 frames if you want check usage.

    The advantage is that the first frame can be used to check cDNG header fields, and the second one for any transform/compression problems.

    If something does not work, let me know if the directory was created and a DNG image was saved.

  • gangstak2gangstak2

    I selected all the embedded fields, but the program still crashes when I try saving to DNG.

  • zcreamzcream

    This particular is not suited for 3d. Its unfortunate that I had to wait a couple of months before realizing this. When one of the cameras is coupled with ext trigger - via the Hirose GPIO pins, the available frame rate drops drastically. I cannot get more than 16fps on any HD size video mode. Such a shame!

    I will be checking with Point Grey to see if any other cameras do manage to go to a higher frame rate.

  • zcreamzcream

    Can you select all the embedded fields ? Its trying to read the timecode.

  • gangstak2gangstak2

    When I select DNG as the save format, the program now crashes and I get the "application has stopped working" message (exception code c0000005). The other save formats don't crash the program.

  • zcreamzcream

    Updated with Cinema DNG tags, and white level. Also dng sdk has been integrated. I turned off lossless JPEG mode as its not fast enough, and I can seem artifacts. https://dl.dropboxusercontent.com/u/9906333/FlyCap2.exe See this example https://dl.dropboxusercontent.com/u/9906333/dngs.zip out.dng is generated using dng sdk. Look at the edges of the white chair. Classic JPEG compression artifacts!!

  • zcreamzcream

    Just in case some clever person Is reading this. I also cannot figure out how the embedded metadata in interpreted.

    My values are

    Brightness 0%

    Exposure 0.415 eV

    Shutter 39.974 ms

    Gain 12.007

    WB - Red 550 Blue 550

    The values in the metadata are

    Brightness C2000000

    Shutter C20008CC

    Gain C20005FE

    Exposure C2000100

    WB 82226226

  • zcreamzcream

    Yup - same link. I overwrite when I update.

  • gangstak2gangstak2

    I used DNG Profile Editor. I had to import an underexposed color chart image to compensate for the default overexposure, otherwise it gave me an error message about blown greys. The custom color recipe might be helping. With images I shot today (daytime indoor shot with a mix of tungsten and daylight), the highlights look fine. With images I shot two days ago (nighttime indoor shot with all tungsten), the highlights are still discolored, even with the new color recipe.

    Is your newest version of FlyCap up on dropbox yet?

  • zcreamzcream

    Updated version now saves Black Level and frame rate (currently hard coded to 25fps) in Cinema DNG tag. This will provide correct brightness viewing in the RAW viewer. The preview is still off within the FlyCap2 - thats to do with the way that PGR is setting gamma and brightness/exposure when mapping 12-bit to 8-bit for display.

  • zcreamzcream

    Or XYZ to RGB mappings. If you have a color chart, can you shoot it ? Bring it into PS, and redo the DNG profile using the Adobe Profile Editor. https://www.adobe.com/support/downloads/detail.jsp?ftpID=5494 Does that help ?

  • gangstak2gangstak2

    Much better!

    With RAW12 exporting to DNG, I get no more stippling. And it's significantly sharper than YUV422.

    The only problem that remains is the interpretation of exposure and white balance. Photoshop is bringing in the DNGs significantly overexposed and with a skewed white balance - very, very purple. When I adjust the exposure and white balance to compensate, I end up with discolored highlights. Could this be a metadata issue?

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