Thread: B&W LUT recommendation

Results 1 to 7 of 7
  1. #1 B&W LUT recommendation 
    Junior Member
    Join Date
    Apr 2018
    Posts
    15
    Howdy,

    I'd like to shoot some black and white footage with my Pocket 4k and I was wondering if you folks have recommendations for a good monitoring LUT. It seems like a lot of grayscale "looks" don't give you the deep contrast of the true black and white film stocks.

    Any advice is appreciated!

    Thanks so much.
    Reply With Quote  
     

  2. #2  
    Senior Member
    Join Date
    Apr 2012
    Location
    Toronto, Canada
    Posts
    594
    One of the first things I did with the Pocket 4K was set up and load a B&W monitoring LUT. I made it in Resolve off a test image shot in daylight.

    But therein lied the problem with a one-time B&W LUT - since you're transforming FILM curve footage, the blacks are often 'variable', ie: a bright scene will have very lifted blacks (20IRE perhaps) and a low-light scene will have lower blacks (10IRE perhaps). So the LUT often seems to be too contrasty or just crushing low-light detail into nothing, or too light in bright scenes.

    Eventually I just made a de-saturated version of the extended Video LUT and then deferred the final look to post on clip-by-clip and black level by black level basis.
    Reply With Quote  
     

  3. #3  
    Senior Member
    Join Date
    Oct 2016
    Posts
    385
    You could make one in resolve. Several depending on the exposure of the scene.
    Reply With Quote  
     

  4. #4  
    Senior Member
    Join Date
    Oct 2016
    Location
    Berlin
    Posts
    245
    Filmconvert got some good LUTS. You can export the filmvonvert grades as luts via After Effects.
    Reply With Quote  
     

  5. #5  
    Senior Member AlmaVideo's Avatar
    Join Date
    Jan 2013
    Location
    San Anselmo, CA
    Posts
    163
    Black and White done by desaturating the image, and adjusting contrast, will give a different image from what a film emulsion like tri x would give. The luma response of a film emulsion responds differently to different colors, affecting where they fall in a greyscale. The luma response of the digital sensor will not necessarily match that of any given B&W film emulsion.
    Reply With Quote  
     

  6. #6  
    Junior Member
    Join Date
    Apr 2018
    Posts
    15
    Quote Originally Posted by AlmaVideo View Post
    Black and White done by desaturating the image, and adjusting contrast, will give a different image from what a film emulsion like tri x would give. The luma response of a film emulsion responds differently to different colors, affecting where they fall in a greyscale. The luma response of the digital sensor will not necessarily match that of any given B&W film emulsion.
    Super interesting. Would an orange or yellow filter make even marginal progress toward that look?
    I'm very much a novice in the science of this stuff, so I appreciate the insight.
    Reply With Quote  
     

  7. #7  
    Senior Member Asyndeton's Avatar
    Join Date
    Feb 2016
    Location
    Portland, OR
    Posts
    436
    Quote Originally Posted by adcalvetti View Post
    Super interesting. Would an orange or yellow filter make even marginal progress toward that look?
    I'm very much a novice in the science of this stuff, so I appreciate the insight.
    PocketLUTs has a decent ‘noir’ LUT, but as someone else said you can export the Filmconvert filmstocks as LUTs too.

    Do you mean a filter in-camera? Yes, depending on what you’re shooting, a red, orange, green, blue or yellow filter will affect the contrast in certain ways to your liking. You can Google and find charts that show how they affect contrast towards certain colours you’re capturing with them.
    Reply With Quote  
     

Similar Threads

  1. ND filter recommendation?
    By retcheto in forum Lens Discussion
    Replies: 13
    Last Post: 09-21-2017, 07:11 AM
  2. 4k UHD TV recommendation
    By Taikonaut in forum Off Topic
    Replies: 0
    Last Post: 12-23-2014, 07:51 AM
  3. So what is the general recommendation for ND/IR Cut.
    By thecook in forum General Discussion
    Replies: 29
    Last Post: 10-24-2014, 12:19 PM
  4. Rig recommendation to grow with
    By ohsoweird in forum General Discussion
    Replies: 6
    Last Post: 07-28-2014, 12:11 PM
  5. BMCC RIG Recommendation
    By strancali in forum Off Topic
    Replies: 15
    Last Post: 12-17-2012, 03:27 PM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •