-
Mixing 4k with 1080p
-
Jack, thanks. You seem to confirm that shooting in 4K and scaling to HD doesn’t give a superior picture against the one obtained by shooting in HD. Interesting though that Media 100 does handle 4K well. That’s comforting as there is a question put by a contributor to the Facebook club of Media 100 users concerning this. I hope that she reads your post on this forum. I always import my HD footage in the ProRes 422 HQ codec, so it makes sense to use ProRes with 4K as well.
Michael Slowe
-
Michael, I’m just seeing this thread so excuse me just now weighing in. I really don’t have any 4K experience with Media 100 but if you are still searching for an answer try this: Edit a short sequence in a 4k timeline and output to 1080p. Then import the original 4K source footage to a 1080p timeline, edit and output to 1080p. Reimport the edited sequences to the same 1080p timeline and use the catch frame feature of Media 100 to examine identical frames of each sequence and compare them using your eyeballs and make the determination if there is any difference in editing in 4K and outputting 1080p or converting your 4K to 1080p timeline and outputting 1080p. Hopefully this is a viable technique.
-
Marcus, thanks for this but aren’t you complicating things? Why not do a comparison by shooting 4K, import as 1080 ProRes, then shoot in 1080, import that and compare both clips on a timeline? My quandary was whether one gains by originating in 4K or not.
Actually, when I do get the new Sony PXW-Z150 I’ll probably continue shooting in HD, it’s just not worth shooting 4K at present. Whether I can get the new Sony codec, XAVC into Media 100 is another matter, might have to move from Sony Transfer to their current Catalyst Browse.
Michael Slowe
-
Hi Michael. My thought is to keep it in 4k all the way through the edit process so that any effects, filters, renders, excetera that you add are done in 4k and only convert to 1080p on the output. In other words, edit in the highest quality and output the 1080p only as the very last part of the process, that way any potential reduction in quality happens at the very last stage. And yes, I am probably complicating things.
-
Michael, for your reading pleasure:
https://digitalfilms.wordpress.com/category/general-concepts-and-ideas/ -
Marcus thank you so much. That link you posted leads to a wonderful read as you promised. There is so much there but one conclusion I agree with is (as applied to editors), “you can’t teach an old dog new tricks”. I feel that sticking with Media 100 certainly follows this mantra. The sections about 4K are really interesting and here again, I feel that my instinct to stick with HD are justified. The explanations on 4K are illuminating, it isn’t as straightforward as we are led to believe. The various permutations with regard to post production are amazing and have to be studied carefully to readily understand the options and likely results. Finally, the master class on shooting and conducting an interview is one that all documentary film makers should devour. I’m proud to say that I follow almost exactly the suggested practice, it is worth reading. I urge all colleagues to follow the link that Marcus mentions.
Michael Slowe
-
If we scale the 4K resolution pic in the 1080p converter the 4K quality image would get down scaled and the clarity,image and pixels would get scattered.FInally the image would get downscaled
Reply to this Discussion! Login or Sign Up