Import, Convert, Exporting Sat, 10 Oct 15 12:00:30 -0600 Import, Convert, Exporting en-CA QUESTION - GH2 AVCHD Timecode Corruption on Import into FCPX Sat, 01 Dec 2012 19:34:22 -0700 nyexcuse 5349@/talks/discussions So I have had this issue for a couple weeks now, and I don't know where else to turn.

I hacked my GH2 a few months ago and things have been pretty lovely so far. A couple weeks ago, however, as I was importing some AVCHD files from my SD card (64GB SanDisk Extreme) into Final Cut Pro X and some of them gave me this error upon import:

"Import Failed: The following clip encountered an error during import and is still referencing media on the camera: Clip Name: 2012-12-01 19:21:00 Event: X Original Name: Clip #X Volume: NO NAME"

After looking around, I noticed that the files that presented this issue had a strange timecode. Instead of displaying a normal start time of "00:00:00:00" they started with "23:27:41:06". Only some files are like this, and as far as I can tell it only happens to clips that used lenses that have been adapted to the camera (non-4/3 Panasonic lenses).. Other than that I don't know what's going on.

Has anyone else had this issue? Is there anything I can do to fix it?


Smart Rendering GH4 4K on Windows? Wed, 28 Jan 2015 06:05:46 -0700 NickHope 12262@/talks/discussions Before I start archiving the best parts of my footage in MagicYUV lossless .avi format at a bitrate 18x bigger than the original, I am wondering if anyone has found a way to reliably smart render (no recompression) 4K UHD MP4 footage from the Panasonic GH4. My typical nature footage features a lot of unwanted head and tail. Really I just want to split the files on the PC, not in-camera. I don't care if it's forced to i-Frames or if the first and final GOPs don't render well.

The "main" NLEs won't do it. I tried TMPGEnc Smart Renderer and that didn't work. I expect it's beyond VideoReDo and Womble.

I have heard that Cyberlink PowerDirector tries it but there are glitches in the result from version 12 (reported at ). Unfortunately the version 13 trial version doesn't support 4k so it would mean spending $80 on the program to test it.

I also notice that Corel VideoStudio Pro X7 features "4k smart rendering" and there is a fully-functional trial version but it's 800MB.

What is the right ratio for anamorphic 4k gh4 footage? Wed, 30 Sep 2015 13:07:30 -0600 tigerbengal2009 13860@/talks/discussions Hi sorry for this basic question but I am really confused about aspect ratios with the gh4, a friend of mine shot a video with his gh4 using an anamorphic attachment 1.75x, he was using 4k 3328x2496 in 4:3 anamorphic mode. with a regular camera that shot 16:9 I just multiply the width for the anamorphic number either 2x, 1.5 etc and the video looks fine, but gh4 4:3 mode I do not understand how to find the right ratio.

how to unsqueeze this on Premiere of FCPX?, I tried 1.78x 3328 but this is not the answer because of the 4:3, what is the logic/numbers to convert anamorphic 4:3 to proper ratio 2.39:1?

also he shot some pictures, I attached an example, which is the ratio to convert the picture to the correct size?

any help suggestions would be appreciated, thanks in advance

Looking for high dynamic range content for HDR experiments Sat, 19 Sep 2015 09:37:51 -0600 karl 13746@/talks/discussions Hi, I am looking for some sample video material which I could use to experiment with generating HDR videos compatible with contemporary TVs.

At one can find only two commercial samples, that's all I could find anywhere.

I have been able to generate videos which my 4k OLED TV recognizes as "HDR" by using:

x265 --preset ultrafast --output-depth 10 --transfer smpte-st-2084 \ --master-display 'G(13200,34500)B(7500,3000)R(34000,16000)WP(15635,16450)L(10000000,1)' \ --max-cll '10000,400' input.y4m output.hevc

ffmpeg -i output.hevc -c copy final.mp4

When replaying "final.mp4", the TV switches into HDR mode, and the content is displayed with what appears to be very high contrast.

I haven't experimented much with the master-display and max-cll settings yet, but this wouldn't make much sense with the input videos that I currently have at hand, which simply are of "low dynamic range", and are only of 8bit per channel accuracy.

If you have some sample video material with a very high dynamic range (like shots of scenery with surfaces emitting 400 or more cd/m^2, like a mixed shot of dimly lit indoor stuff in one place and some brightly sunlit plants visible through a window outside), you could make me happy by making it available (in a format conveying at least 10 bits per color channel).

Actually, anyone with a Magic Lantern patched full frame camera (or an Arri Amira) at hand should easily be able to create such a sample shot.

Youtube videos re slightly out of sync. Why? Wed, 26 Aug 2015 12:03:59 -0600 dlzn 13614@/talks/discussions I've noticed my videos are now slightly not-synchronized, after they have been uploaded for months, for an unknown reason. I mostly view them in Google Chrome. But I don't think it's browser related.

I shoot with a hacked Panasonic GH2, mostly Flowmotion V2. My upload codecs are usually h264 .mp4 varying from 24fps to 50fps. Nothing too extreme. When rendered and exported everything is pretty much synced. But on Youtube they are off.

I work on a Macbook Pro Retina (late 2014) 2.2 Ghz Intel Core i7, 16GB RAM

Does anyone know why or how to fix this? Or is it just me and am I going crazy.

Playback of edited 4K on camera Sat, 20 Dec 2014 16:37:15 -0700 SAS 11999@/talks/discussions Hi all, I have searched for existing answers to this question/issue all over this site and google, but have yet to find anyone with the answer:

I have the FZ1000 but I hear the problem is the same for GH4:

I can currently only playback individual 4k clips in camera over HDMI to a 4k TV, but I wish to make an edit and play it back...

Is it possible, once I have edited a 4k Video, to make it playable in camera so that the edit can be displayed over HDMI on a 4K TV or monitor?

Many Thanks for any solutions, as my friend has a 4K TV and I have a FZ100 so we would like to be able to playback an edit in camera over HDMI so that we can watch my work..?

Need Davinci Resolve Lite 9.0.4 Mac .dmg Wed, 27 Aug 2014 02:19:03 -0600 Psyco 11135@/talks/discussions I'm need Davinci Resolve Lite 9.0.4 as its the last version that runs stable on OSX 10.6.8. I want to convert the raw files from BMPCC and can't upgrade the OS because of other hard- and software (and because I want an OS I can work with;-).

Has anybody still that .dmg or .zip and can upload it for me to some file sharing platform please?


Converting from HD to SD for DVD Thu, 31 May 2012 15:01:14 -0600 paulva 3428@/talks/discussions Submitting to Film Festivals and they are accepting SD DVD only.

What is the best method of conversion, I seem to be losing a lot of quality with what I am doing, but I am a newbie in this.

I am using Adobe Premiere, thanks

Using Proxy for my GH4 4K .mov files with PPro CC 2015 Sat, 25 Jul 2015 11:00:59 -0600 soulkeeper 13454@/talks/discussions I'd like to avoid upgrading my pc right now so i'm trying to find alternatives (proxy files-settings in ppro etc) in order to be able to edit my files.... I've got 8gb memory (maximum supported from the motherboard) and i've set 5,5gb(2,5gb for OS) in ppro from the settings menu... Imported files (120gb of 4K .mov gh4 ) i'm getting a low memory message (after 5-10minutes) and i have to quit the app.

Will transcoding to Prores 442 4K proxy (3840*2160 res) help with memory problem? It sure helped with cpu load (90% vs 35%) for a 4k file in a 1080p timeline...the proxy 4k file is double the size of the original (converted with cliptoolz) but before i do the same for all the project i'd like to know if i'll solve the low memory message?

Any other suggestions for dealing with low memory message?


Windows says DNG is 48 bit (3*16) when it is actually 24bit(3*8) ? Mon, 06 Jul 2015 05:59:20 -0600 mala 13327@/talks/discussions Title says it all really, I have some RAW images from a machine vision camera which have been run through a custom bit of software to save them as DNG. In Raw Therapee, Raw PhotoProcessor and photoshop on OSX they are correctly "tagged" as 8 bit, yet on windows with Adobe DNG codec installed, windows picture viewer says they are 48 bit ?? Has anyone experienced anything similar ? or have any idea why this might be ? We also have a colour matrix problem that may or may not be related, with high green tint, though if "no profile" is selected in Raw Therapee the image is displayed correctly and RAW PhotoProcessor always by default opens and exports the image correctly.

Thanks for advance for any suggestions. mala

Encoding Helper - Public Alpha - Feedback wanted Sat, 30 May 2015 05:30:56 -0600 jondezwaan 13079@/talks/discussions Hi guys!

Longtime lurker here.

As part of my graduation project, I'm trying to develop a (web)tool which should make video encoding a lot easier and faster. It's actually a follow up to my previous research, in which a lot of (pro) participants stated that time is often a limit to quality. This tool should provide the best settings based on time and hardware, but it's possible to get settings without those parameters as well. After learning some basic PHP skills, I've completed the base code and I think I need to share it first, before I continue to develop the tool any further. Let me know what you think and most importantly: don't be gentle!

You can view the tool here: link and if you've got any spare time, please provide some feedback in this topic or at the form below the website.

I know there are some issues regarding 4K encoding advice (didn't properly implemented a VP9 algorithm yet), but please any feedback is welcome!



Free program for .mts to virtually any (editing)codec conversion (XMedia Recode for PC) Thu, 25 Dec 2014 09:46:56 -0700 MrZz 12030@/talks/discussions Hey guys just wanted to share an easy workflow I found for converting my raw .mts-footage to .mov-files with DNxHD 120 (very good editing codec from AVID - even my Netbook is capable of offline editing with this, for better quality use DNxHD 180 or else). This program: can do batch conversion of video (and also audiofiles). It has a lot of settings for each different format it can convert to (I use MOV and then the VC3/DNxHD set. you can then decide which setting of the codec you want to use, e.g 1080 at 25p with a bitrate of 120 Mb/s -> DNxHD 120, which I highly recommend but you can convert to virtually any video format) If you don't already have it installed, download the AVID Codec pack:

Best render settings for Youtube Sat, 06 Jun 2015 21:04:15 -0600 MikeLinn 13132@/talks/discussions

Editing GH4 C4K (.mov) Final Cut Pro X 10.1.1 On a Mac Pro Mon, 23 Jun 2014 20:51:35 -0600 chasehagen 10660@/talks/discussions Anyone else having trouble editing native GH4 C4K (.mov) in Final Cut Pro X (10.1.1). I have a Mac Pro Mid-2012 3.2x4, ATI5870, 16GB RAM, 7200RPM Drive and it stutters like hell Playing Back a 5 minute sequence with no effects... Even with Smoother Playback selected it just will not playback smooth even with nothing else open... I would love not to have fro transcode to ProRes if I don't have to...

WinRewrap - Batch ReWrap MTS to MP4/MOV . Sun, 30 Sep 2012 17:42:50 -0600 fatpig 4775@/talks/discussions Hello,

I wrote a little Tool called WinRewrap. It will Batch Process MTS Files to MP4/MOV and adjust References to the MTS accordingly in your XML File. It uses ffmbc. ( ) I wrote it primarily for exchange between the new Sony Vegas Pro 12 and DaVinci Resolve. But it can be used for any Batch rewrapping task of MTS.

Of course, this is a very early version, so please let me know any problems that may occur. Note: Audio was converted to AAC in v0.1. Later version keeps the audio stream.

I hope you can use it as well as I can. Ideas, suggestions and Bug Reports, please post here.




The Homepage is still in development. Anybody who would like to donate a small amount is appreciated :)

WinRewrap v 0.4

Changelog 0.4:

  • Added Cancel Option while ReWrapping
  • Added PCM and No Audio option

Changelog 0.3:

  • Added Option to Convert Audio to AAC
  • Added Check for 0-byte Files (returns error now)



  • ffmbc.exe (Release was tested with version 0.7.1 rc7) put it in the same folder as the WinRewrap exe.

  • Windows 7 / Vista Users may experience errors related to writing permissions.

Fix: Turn up your UAC to "always notify". if you turn it to not notifying, some applications are automatically denied access. like winrewrap.

to fix those, copy WinRewrap and ffmbc.exe to your Project Folder. (Tip: WinRewrap starts with its containing Folder under the Browse Dialog, If its your project Folder you can just click OK.)



support for rewrapping .MTS Files to .MP4 and .MOV using ffmbc.exe

this is essentially a frontend for ffmbc, designed for batch processing project folders containing multiple MTS Files and optionally an XML.

This enables project export from The New Sony Vegas Pro 12 to DaVinci Resolve, and can also be used for normal batch processing of entire Folders from GH2, etc.

It will automatically replace the MTS extensions to your new Container inside the XML, so you can automatically use it with the rewrapped files.

Known Issues:

Big Endian PCM Audio is not supported in Stream Copy Mode as of Version 0.4 (AF100) WinRewrap can, however convert to little Endian PCM Audio.

Bug reports please in the dedicated thread on



GH1 fcpx Sharing video problem Sun, 24 May 2015 07:16:33 -0600 shabram_2222 13041@/talks/discussions I have a GH1 hacked with lpowell peak reliability setting and I'm having trouble getting my videos out of fcpx without this strange interlacing problem. I'm not sure if its interlacing or not. The steps I take are-go to share, select master file(default), Then I've tried both h.264 and prores 422 which is what it said the source was. Another peculiar thing is that the frame rate reads 29.97 but I thought the hack I have gives native 24fps. Maybe it's a frame rate problem? I've attached a screenshot of a video freeze frame. H.264 made it a little better but it's still really bad. Whats going on here?

JPEG Compression Sun, 24 May 2015 09:51:34 -0600 Vitaliy_Kiselev 13043@/talks/discussions

Windmotion - upsampling to 4:4:4 Fri, 25 Jan 2013 20:57:48 -0700 zsero 5909@/talks/discussions I've just seen this post over at doom9 forums about a guy making a super high quality filter to upsample to 4:4:4 16-bit. Especially for GH2 / GH3 owners. Trying to invite him over here.

EditReady from DivergentMedia Thu, 21 May 2015 06:44:48 -0600 phoria 13020@/talks/discussions Has anybody tried EditReady from Divergent Media ? They said it's the fastest video converter on the market at the moment. I'm wondering about the quality compare to 5dtoRGB. Because at the moment I'm using 5dtoRGB, i'm quite happy with the result but the only downside is the converting time.

DVD burning for playback in Europe and US Fri, 08 May 2015 14:33:58 -0600 matt_gh2 12953@/talks/discussions Hi,

I need to burn some DVDs that can be played by people who will be in Europe and US. If I burn onto a blank DVD-R that I bought in US, will it play in both European and US DVD players? Do I need to get disks that are of a certain Region?

Thanks, Matt

Tip for importing 'missing' GH2 clips in Final Cut Pro X Mon, 04 May 2015 22:52:04 -0600 arvidtp 12929@/talks/discussions Often I find that when I go to import footage from an SD card I've shot on my GH2 (hacked, settings are Sanity 5.1 or Sanity X) Final Cut X's import window will not see some earlier video clips I'd shot (and not yet imported). I discovered after a recent shoot that if I turned the camera off, changed the battery, turned it back on and kept shooting, only the clips shot after the battery change were visible to FCPX. So, after cursing at FCPX as I am wont to do, I started copying the .MTS files (which thankfully are always still there on the card) and preparing for the annoying process of concatenating spanned clips by hand and re-wrapping them all, when I hit upon the idea of seeing if I could just repair the AVCHD file structure.

Well, it turns out to be pretty simple. It seems that when the GH2 is power cycled, it makes a new playlist in the AVCHD structure (you can tell because there are multiple .MPL files in PRIVATE/AVCHD/BDMV/PLAYLIST/), and FCPX only sees clips from the most recent playlist with no way to switch to another playlist.

After a little hunting with a hex editor, I found that PRIVATE/AVCHD/BDMV/INDEX.BDM tells the importing software (at least in the case of FCPX) which playlist to look at. There is a number at the end that matches the number of the most recent playlist file (eg 00001) for 00001.MPL. So if you import the visible footage, you can then backup INDEX.BDM and use a hex editor to change that last number in it to the number of the previous playlist. You're just changing a single byte! Save, then open the FCPX import window again (maybe you need to relaunch FCPX? - don't remember) and the clips that were missing will probably be there. I assume you could repeat the process if you had 3 or more AVCHD playlist files on the card.

for a free hex editor on mac, I recommend Hex Fiend:

Don't use a normal text editor – more than that single byte will probably change and you'll be sorry.

So to summarize

If missing clips in FCPX import:

  • import what you can see
  • check for the presence of multiple .MPL files
  • change the 5 digit number (eg 00001) in INDEX.BDM to refer to a different .MPL file
  • import again in FCPX - missing clips should show up

attached are some screenshots of changing the contents of INDEX.BDM.

Hope this tidbit of knowledge helps some people out. I wish I had discovered it a year ago – would have saved me some aggravation for sure.

RockyMountains Movie Converter Thu, 30 Apr 2015 17:57:22 -0600 joethepro 12900@/talks/discussions Great free video format conversion, especially for H265. Converts to/from all sorts of different quality levels of H264, H265, and ProRes 422.

Davinci resolve won't see Avid encoded files Sun, 26 Apr 2015 08:56:21 -0600 chauncy 12873@/talks/discussions Well, let's try over here. A client gave me some mov files encoded in Avid. I can't get Davinci Resolve to see them, which may mean they aren't supported. These files are Avin files, avc intra 100. I'm on win 7 resolve 11.3

Adobe sees theses files, quick time player sees them. I've installed every codec known to man. Here's some info from Media PLayer Classic(which won't play these files by the way)

Any help? (I don't want to re-render them in another codec)

video: MPEG4 Video (H264) 1920x1080 25fps 119562kbps [V: Apples aliasdatahanterare [eng] (h264 high 4:2:2 intra L4.1, yuv422p10le, 1920x1080, 119562 kb/s)] Audio: QT PCM 48000Hz stereo 1536kbps [A: Apples aliasdatahanterare [eng] (pcm_s16be, 48000 Hz, stereo, s16, 1536 kb/s)]

media info

General Complete name : G:\likeme\Edit RC - v79 scene 14 Avid Format : MPEG-4 Format profile : QuickTime Codec ID : qt
File size : 2.03 GiB Duration : 2mn 24s Overall bit rate mode : Variable Overall bit rate : 121 Mbps Encoded date : UTC 2015-04-25 09:07:24 Tagged date : UTC 2015-04-25 09:08:44 Writing library : Apple QuickTime

Video ID : 1 Format : AVin Codec ID : AVin Duration : 2mn 24s Bit rate mode : Variable Bit rate : 120 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 25.000 fps Scan type : Progressive Bits/(Pixel*Frame) : 2.306 Stream size : 2.00 GiB (99%) Title : Apples aliasdatahanterare

Lossless DNG compression program with checksum Wed, 22 Apr 2015 09:33:15 -0600 FrankGlencairn 12852@/talks/discussions I was betatesting a program that is not only doing checksum, but also lossless compression of DNG files on the fly, while you dump them from the SSD/card

slimRAW is a fast CinemaDNG compressor. It converts uncompressed CinemaDNG raw video to losslessly compressed CinemaDNG. Lossless compression does not affect image quality - the losslessly compressed raw video output of slimRAW is exactly the same after decompression as the original uncompressed video. slimRAW saves storage space and reduces storage bandwidth requirements for CinemaDNG raw video production. Losslessly compressed CinemaDNG raw video is compatible with various popular video production software.

slimRAW is available for Microsoft Windows and Apple OS X.

It is available now:

Good, balanced settings for online backup of footage Tue, 28 Apr 2015 04:14:14 -0600 eyenorth 12884@/talks/discussions Hi, wanted to hear with you all if there is anyone who has settings to recommend for compressing footage for online emergency backup when on the road. Looking at a balance between retaining image quality while still being able to upload it when access to symetric fiber-optic bandwidth is limited.

I use Handbrake for these purposes, but as I lack deep insight into compression I tend to 'safe' it making for probably too exhuastive compression settings leading to long conversion times.

Would be helpful to hear what other people do - no matter if it's within Handbrake or not. Or perhaps if there are any suggestions for using h265 for the same purpose without insane render times.

ACES DCI sRGB Codec Supported??? Sat, 18 Apr 2015 09:19:12 -0600 producer 12824@/talks/discussions Is there a way for ProRes, DNxHD or any other codec to support ACES (DCI, sRGB, etc.)? In Sony Vegas the only possible I found is the Sony YUV 10-bit which is almost uncompressed. Any suggestions, please?

Miraizon Gone ... and ProRes licenses on PC Wed, 22 Apr 2015 18:22:29 -0600 rNeil 12854@/talks/discussions Went to the Miraizon site to check on the price for their codec pack that includes ProRes & DNxHD for Mac/PC ... and found this ... which as Miraizon was the only place a PC user could get ProRes is rather an unhappy discovery.


Diagonal rain appears using GH2 + Premiere Pro CS6 without a hack Mon, 11 Feb 2013 19:53:46 -0700 PeterParkorr 6094@/talks/discussions Hi,

I've been trying to work out why exporting some noisy low light footage in premiere pro CS6 is giving me 'diagonal rain' problems that aren't present in the original m2ts files from my GH2.

Reading two similar topics (below) the problem seems to be related to GOP length, which hack is being used, and the decoding abilities of certain players. But I shot this footage with the original firmware so this can't apply? Possibly it is a CS6 specific issue?

It's not footage I can take again so any advice on how to export this without the noise would be amazing... I'm a beginner but not posted it there as the problem seems to be a complicated one.

I just uploaded the start of my edit to youtube for an example of the problem. Some of my footage was 24p and some was 50 fps 720p but the problem persists in all the export formats I've tried;

4K Downscaling progress topic Thu, 19 Jun 2014 17:13:01 -0600 RRRR 10637@/talks/discussions I couldn't find anything dedicated (and I may have missed something important) so: This is a topic dedicated solely for any kind of progress updates on software, code and methods to downscale 4k with best possible results to help people establish a workflow for converting 4k footage. Meanwhile, it may be a good idea to also map the best downscaling methods that already exist.

Frame Rate Downscaling / Frame Averaging Fri, 16 Jan 2015 04:47:25 -0700 Athiril 12188@/talks/discussions Anyway, the basic idea is the same as image stacking, you stack 2 or more images, one of the advantages is if you do it in a high bit depth space, the bit depth of the image will go up, that means 8-bit images increase in bit depth when the stack is calculated in a higher bit depth space.

I commented off hand that if you're desperate enough you can get higher bit depth from merging frames together if you have access to 50, 60p etc. Oh, this also works if you downscale a higher resolution to a lower one within a higher bit depth space as well - so for all you people down scaling footage, if you're able to do that in a 16-bit space and save a high bit depth format then you'll have something to gain. I didn't speak for practicality, only that it can be done.

When I wrote my program to count unique colours in very large resolution 16-bit tiff images, I didn't see other software that'd do that. As the array would require tremendous memory. If you want to know the way I managed to do it I had a simpler way to do it which required processing power over memory, and that was to sort the pixels in an array from smallest colour value to highest essentially, that way you could simply not add +1 to the unique colour count if the same colour appeared more than once in a row.

I had other reasons for doing this, it's part of my experiments with image stacking, but I've done it with various image sources, scans, jpegs from shitty cameras with no raw, raw, jpegs from better cameras, snap shots of two frames in video.

Been told it's "cant be done" many times. Because the information from one from to the next isn't the same - well no, that's exactly why it works, even in the worst case scenario of a tripod locked off shot of still life with nothing moving it works.

But if you're recording 50p, blending every 2 frames together just speeds the footage up to 25p, the average of the two frames still contains the same amount of motion blur/movement as recording in 25p at the same shutter angle, though it may be divided into 2 sections over the 1 frame instead of 1 long section of motion.

Generally that shouldn't be an issue as 180 degree is accepted as general purpose good shutter angle which leaves space between the movement/motion blur anyway, and if you wanted none you could shoot 360 degree.

Now to the screenshot - R, G, B bit values, these represent how much of the scale Red will use on it's own (regardless of what green and blue is attached to - the same goes for Green and Blue etc), a value of 6-bits would mean, the image only has 64 differing red values in total. I made this to identify problems with some images.

Unique Colours is the total number of colours, an 8-bit image has a maximum value of 24-bits here, but that would be very hard to achieve, as it would have to have every combination of colour, hue, intensity, saturation in the one image etc from bland to neon, and the image resolution would need to be 16.7 million pixels or over.

The Unique Colour Factor - A 1920x1080p image has 2,073,600 pixels in the frame, a value of 50% would mean it would have 1,036,800 unique colours in the image, this percentage can be used as a factor of colour quality and separation.

The first example is a single frame grab from some A7s (720p 120fps) video I downloaded off the net (I was going to use my GH2, but I left it at work this afternoon), it's placed into Photoshop and converted to 16-bit and saved as a tiff (partly to rule out any conversion to 16-bit as the contributing rise in bit depth counting, and also because the program I wrote only reads 16-bit tiffs at this time of writing).

The second example, is the first 2 frames in 16-bit mode in photoshop, blended with opacity at 50% for the top layer, flattened and saved as a tif.

The fourth is the same but with 4 frames.

As you can see, the more you stack, the more in between values with higher precision than 8-bit arise, about ~9x the unique colours.

It should only be logical, even if the video or two photos is of on a tripod of a still life, 2 pixel values will have variance in them over the two frames, especially since 8-bit has high quantisation error compared to higher bit depths, variable noise, micron image movement etc, so if you have one that's 241 and 240 for example, the in between value cannot be represented in 8-bits.

Unfortunately I'm working tomorrow, but that means I can get my camera back before Monday, so I probably can shoot some footage with the lowest contrast settings and see if I can induce banding in something and post up an actual video sample.