Jump to content

How can one avoid banding in post with the A7s (and other 8-bit cameras)?


Recommended Posts

The banding in that clip is present in the ungraded half too and is just due to compression.


You can avoid banding to an extent by using grain. The noise forces the encoder to add more data to those areas of the image. However, with h264, dark areas of the image will always become blotchy unless it's at 30mbps or above.


One thing I've found is that some 3D LUTs (especially Osiris) causes banding where others don't.

Link to comment
Share on other sites

@Inazuma  Thanks for the info!


Thank you for linking the article.  >One the comments shows the dramatic advantage of "diffuse" dithering over merely applying noise.
I have used noise and blurring with still photos to eliminate banding, but with stills it is easy to localize the effect within the image.  Has anyone used masks (or other selection tools) to keep blurring/noise/dithering to a local area in video?


Link to comment
Share on other sites

I have a video to explain on this I just have to do the voice over. Basically if you can denoise the plate, sharpen the luma and blur the chroma then regrain it should get rid of any banding you have

Looking forward to watching the video!

If it is an easy process, I might reconsider shooting with the A7s.

Link to comment
Share on other sites


Very interesting!


I can see how the banding is reduced on the third clip (compared to the second clip).  However, I confess that I prefer the contrast in the original clip over that in the processed clips.


Thanks for the examples!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Content

    • By Emanuel
      Show us something from your liking...
      In the meantime, here are a few for free:
    • By Alex T
      Amazing cage with built-in follow focus wheel perfect for the a7s, Canon and Nikon cameras. It's in used condition but works great. Redrock are a quality company with excellent customer service. I've found this cage to be exceptional as a one-man-band. 

      "The Scout is first of its kind ultra-portable camera multi-tool. It’s a universal cage and rig in one featuring a built-in microRemote Fingerwheel System that’s wireless-ready. The Scout has a rail system when you need it, or remove rails for a super low profile setup. Load-and-go, run-and-gun, point-and-shoot right out of the box. ultraCage Scout is the ultimate self-contained rig for handheld mirrorless camera and DSLR video" 

      RRP: $2,199.00
      Selling for £1099

    • By Rich Miller
      Hi Peoples,
      We shot the following for the Cinema5a challenge which is taking place at the moment. If you like it PLEASE tick the thumbs up on youtube and feedback is very welcome.
    • By mechanicalEYE
      Redrock Micro Mini Handheld rig for mirror less cameras. This rig is in excellent condition.
      Price: $245.00
      Payment method: PayPal

      Lightly used Redrock Micro Mini Handheld Rig for Mirror less Cameras.

      Excellent condition. Can be configured in a variety of ways to suit most shooting styles.


      I am asking 245.00 shipped within the USA. will ship internationally at buyer expense.


  • Create New...