Now that options are available, thoughts are turning to quality and needs.
In stills you have RAW. All cameras shoot in it, better cameras allow you to access it and life is good.
From RAW you get jpeg or TIFF files.
Easy.
In video, thanks mainly to RED cameras, you do not get true RAW, because they own enough of it to make using the term and tech prohibitively costly as several companies trying to sue them have found out. Video also has to balance quality to storage realities.
The question I guess is, what makes a visual difference, is worth the extra cost/storage/effort and what is basically wasted in the long run.
Video therefore has “layers” of quality, best explained by Gerald Undone,
https://www.youtube.com/watch?v=wX9KGRHaMEY&t=42s .
Apart from the now dated camera specs being talked about, all this above still holds true, the main difference being direct to SSD recording from camera.
Internal limited users, tend to use LOG as their maximum quality level and those who break the shackles go into ProRes, RAW or similar. My own journey was one of liking standard profiles, feeling a natural draw to LOG, but compromising at Flat profile. My hope is, Flat with maybe a codec lift will give me what I want.
Ok, that is the meat of it handled, now the garnish.
First lets look at file sizes, storage and realities.
This is the key I feel.
Having the best quality available to me (B-Raw) and several levels down previously unavailable (ProRes and All-i) and even 6k, realistic storage is the first issue. Do I really want or need to come back from every little job with 50-100gb or even more eaten up?
Long-GOP or IPB format is the most common capture type, great for relatively stable subjects and a light load on the camera. Long-GOP captures a master frame (the I frame), then “fills in” the next few with mostly recycled information (B and P frames), only adding new master information with the next clean full capture frame. This is a little like traditional animation, the “moving bits” overlayed over the static background plate, although that is an over simplification.
All-intra on the other hand is better for movement and changing subjects, or camera movements etc as it captures a completely new frame every frame. This is a bigger load, so a waste if applied to interviews etc, where most of the frame remains unchanged.
I shot 5Tb of stills last year, but dumped 80% of that as unnecessary (I keep masters of submitted files, but let the rest go unless the event is very important). My video has been limited to 1080/10 bit/422/Long-GOP, but even then a 2Tb drive was swamped in no time and I would not consider myself overly active in this space yet.
Realistically 1GB/minute is plenty, maybe more, but not very often and some flexibility would be great (why record more than needed?). 1GB a minute is Long-GOP/10 bit/422/1080, so not much room to move, but it turns out B-Raw at Q5 is potentially less, but some of the intermediate steps do eat up more space (6k All-i can be a monster 1.6gb according to my G9II!).
So, resolution and basic codecs.
Do I really need 4k or is less plenty?
Keep in mind, my main concerns are smooth footage, no artefacts and good processing flexibility, with low card speed and storage stress for mostly internet use.
It seems 4k is the assumed standard these days for capture producing roughly an 8mp image per frame, 1080 is a lowly 2mp file, so “out of date”. The common logic though seems to be, you cannot see the difference on most screens or even if you can, it is only evident with direct and close comparison, so future proofing aside, which is often not a real world thing, 1080 is usually what people need even if it is not what they think they need.
Also, 6k is generally only a cropping convenience for reels in vertical format.
The key seems to be visual quality in and out, not quantity of quality. Very well recorded 1080 footage can go up, where oversized recordings will likely end up going down in size for storage etc and poorly realised 4k is not better than well shot 1080.
1080 looks to be the smart move for my work, opening up more options at the camera end and heavily reducing file sizes and media stress (4k B-RAW at 5:1 compression is 81mb/s needing a 560mb/s write card or SSD, 1080 is 20mb/s, so a 160mb/s (20x8) card is fine). The cost in cards alone is enticing. It would be great to have all my video from a year stored on 2-3 2TB drives.
Can quality from other elements make up for the resolution difference?
Codecs.
As well as resolution, codecs determine both the capture, processing and output quality and often the options available to you. MP4 is easy to use, small, very versatile, but severely limited (just watch some cat videos for examples).
Apple’s .Mov is better and the most common more serious codec for in camera use, but is not fully supported on all platforms once exported. There is more though.
Codecs are often overlooked, but as we move up the chain, their importance becomes obvious.
After .Mov are a range of less compressed codecs, which offer better quality, but produce larger files. These top out as 422/10bit ProRes HQ, an industry standard and plenty for most projects.
It falls short of RAW codecs in pure post processing flexibility, but if you have cut your teeth on lesser codecs, it will feel like a luxury ride and a reward for good technique. ProRes has competitors, but this level is already a quagmire of options, so I will use PR as a base line and for me it is most relevant.
From ProRes we shift to full ProRes RAW, or in my case B-Raw. Like RAW in stills, these offer maximum post processing power and negate most other quality settings.
I have used .Mov without hesitation, but may also export an MP4 version of my work if I am not sure where it will be used.
Colour profiles.
Colour profiles do effect quality when post processing is considered.
Unless you are using RAW, “baked in” picture profiles are more or less are applied starting with generic Natural, Standard, Portrait, Vibrant etc. These are camera processed profiles, designed to be shot and used as is with minimal post processing.
I have used Panasonic’s “Standard” profile a lot and even pushed it around some. If I get it right it is great.
In modern video empowered hybrid cameras, there are often video specific profiles like Cine-V or Like Rec 709. These react the same, just look more “cinematically” aligned. A common trick is to reduce contrast within these to simulate a “flatter” profile (see below).
They allow you to apply settings and features only the camera can apply like dynamic range boost and sharpness, noise reduction or saturation etc, but are quite inflexible in post and depending on the camera, usually have less dynamic range than un-processed profiles.