The difference with 4.5K & Redcode 42?

[Alexander Chinnici]

Hello everyone,
As you can see I have hardly posted anything at all. I have been following Red and reduser for over a year now. Unfortunately I do not own a Red because I can't afford it But I luckily have shot on it many times and I absolutely love it! (mostly build 17)

Enough of that...my question is what is the difference between shooting 4KHD and 4.5K?

I am shooting a short film on the Red in about a month. We are either shooting 4KHD and cropping to a 2:35 aspect ratio in post OR shooting with the new 4.5K ...PLEASE be very technical and specific. Differences with RC36 and 42. Storage space, post issues ...issues with shooting 2K slow-mo stuff.

Anything would be great! The more the better. Thanks guys
-Alex

 

[Alexander Chinnici]

Anyone at all? Please?

 

[Julio Quintana]

http://www.reduser.net/forum/showthread.php?t=35033&highlight=redcode+42

 

[Dominic Jones]

What resolution are you finishing at, that's the question.

If you are finishing 1080p/2K or below then one of the "standard" 4K modes would be absolutely fine (in fact for a 1080p finish 4KHD would arguably be better). RC42 would be a good choice though, although you may not see a huge difference (I haven't had the chance to test the new compression mode yet, but RC28 and RC36 are pretty much indistinguishable in most situations - that said, I tend to shoot with the least compression possible as a matter of course, but I'm sure others will differ in their opinions).

If, however, you are or might in future be finishing at 4K then the 4.5K mode makes a lot of sense, as it get's you much closer to a "true colour" 4K image once debayered and scaled. Of course, you limit vertical re-framing options when doing this, but that isn't a huge concern for me...

Hope that helps,
Dom.

 

[Greg M]

You need to take your post workflow into consideration as well. Currently most solutions do not yet support 4.5K...so this may or may not be a deciding factor. How do you plan on posting your project?

 

[Ketch Rossi]

Hello everyone,
As you can see I have hardly posted anything at all. I have been following Red and reduser for over a year now. Unfortunately I do not own a Red because I can't afford it But I luckily have shot on it many times and I absolutely love it! (mostly build 17)

Enough of that...my question is what is the difference between shooting 4KHD and 4.5K?

I am shooting a short film on the Red in about a month. We are either shooting 4KHD and cropping to a 2:35 aspect ratio in post OR shooting with the new 4.5K ...PLEASE be very technical and specific. Differences with RC36 and 42. Storage space, post issues ...issues with shooting 2K slow-mo stuff.

Anything would be great! The more the better. Thanks guys
-Alex

Shoot 4.5K and finish to 4k, 3k, 2k, 1080P, finish to anything you want but maintain the same beautiful frame composition offered by the panoramic style of 2:1 offered in 4.5K, I don't see any problems at all nor in capture or in post, just treat it as if it was 4k with a different cropped scenery yet maintain as much info as you can.

 

[Andrew clemson]

Keep in mind that build 21 is a beta build. There are still bugs.
Might not be the best option for going into feature production.
Do you reeally need that extra 0.5K?
Personally I'd stick with either B17 (if youve already shot on it) or B20,
unless 21 becomes the release build before you start shooting.

 

[Tom.Wong]

you'll gain more FOV at 4.5, one of the biggest benefits. all your lenses will be that much closer FOV wise compared to S35. you'll see a lot more with your wide angle lenses and so on.

rec 42 isn't much of a bandwidth difference between 36, so visually you probably won't see any difference to the naked eye. you'll have to do all the chart stuff, and analyze all your extra lines down to the hardest technical tests to see the differences. but it will give that extra wiggle room with effects and critical green screening.

but i think you'll want the 4.5k just to see more, and the downrez to 1080p or 2k shouldn't be difficult at all. but all in all, you'll have to run test yourself to see how much hd space 4.5k at rec 42 takes, and how compatible the CF cards are before you really make that choice. i'd recommend going with the workflow that makes most sense and gives you a easier happier production time rather then trying to gain that little bit and sacrificing a lot.

 

[Rainer Fritz]

RC42 is not available at 3k and 2k modes, just to remind....

 

[Roberto Lequeux]

You could shoot 4k but the wides in 4.5k, for the FOV.