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Notes from Sonja Schenk, Author of The Digital Filmmaking Handbook
Sonja Schenk on Film, Video & DSLRs
Shooting film-like projects with DSLRs is an inescapable fact of life in the entertainment industry this year. Since January, I've worked on a scripted feature film, a non-scripted TV pilot, and a big 3D movie; all of them used footage shot on the Canon 5d, 7d, or T2i, and two of them had footage shot on the Go Pro as well (although it did not make the cut in the end).
What have I learned? A lot! Here's the distilled version...
Shooting with DSLRs
Shooting with a DSLR is rather difficult for the camera operator. It's very hard to keep focus and maneuver a camera that's not designed to move at the same time. If you want your footage to look its best, you'll need an AC (Assistant Cameraperson) to pull focus, because your camera operator only has two hands. Special rigs, like those by Zacuto and Redrock, are great; but it's still harder to use these cameras than regular video cameras, especially when not using a tripod. But is it worth it? The footage looks fantastic! It holds its own against stunning 3D digital cinema shot on a high-end Red camera. Not to say that it looks the same, but it looks good, and--more importantly--when you are watching your 3D shots on a big screen, you won't be saying, "Why does that stuff look so bad?"
Recording sound when using a DSLR to shoot video is like taking a step back in time to 30 years ago. Slates, hand claps, all the old school methods for making sound and picture syncable in post are all valuable tools. I know that almost every single person out there is saying the same thing: What about Plural Eyes? Plural Eyes, like its sister product, Dual Eyes, is great. But in my experience, it's only going to get you partway there. When you're in post, and Plural Eyes can only sync 75% of your footage, you will be very happy to have that slate and to have sound and picture that start at approximately the same time. And if Plural Eyes can't sync something, rest assured it will be the stuff that's difficult to sync--noisy footage at a party, footage where the video camera was far away from the sound recordist, and so on.
So what should you do in the field to make sure you can sync your footage easily in post?
By doing this, you'll have one piece of sound for each piece of video/picture. Near the start of each piece of sound and picture, there will be a slate. Your editor can quickly match the audio media to the video files and look for the slate clap and find the sync. It doesn't take that long to sync dailies in post if you shoot this way. But it can be a whole lot harder if you don't. Remember, your editor is "blind." They won't know that you recorded room tone after the second take unless there is a voice slate telling them that's what this piece of audio is. Without a voice slate, they may listen to five minutes of white noise, waiting to find the sync clap.
Also crucial with DSLRs and other types of file-based media on the set is having a plan in place for media management, backing up and transferring files from camera cards to hard drives. There is no standardized way of doing things but I recommend having a day's worth of cards for your camera so that you don't have to delete any cards during your shoot. I also recommend having a media workstation on the set and immediately copying your media to two sets of hard drives as you shoot. At the end of the shoot, store one set as an off-site backup and take the other set to post.
If you are using FCP, make a disk image of each camera card because FCP uses the directory structure of the camera cards. This is an inexplicable pain, as are many things associated with FCP.
DSLRs in post
If you followed the tips above, synchronizing isn't going to be too much trouble. But before you sync, you'll have to transcode your camera raw media. DSLRs shoot using the H.264 codec, which isn't native to either Final Cut Pro or Media Composer. Most likely, you'll choose to transcode to either Apple ProRes if you are using FCP, or Avid DNxHD if you are using Media Composer. There are many flavors of each of these codecs, but for DSLR media I would choose Apple ProRes 422 or Avid DNxHD 115. Frame rates and pixel dimensions vary depending on how you shot the footage. These codecs will not degrade your camera original media and are safe choices.
However, they will make each file about 2.5x larger than the camera originals. A feature film with 1TB of raw media will need over 2TB of storage when transcoded. Transcoding also takes a long time. For the scripted feature, we left our dailies processing overnight every night. For the feature doc, which shot about 80-100 GB/day, it took 12-15 hours to transcode a day's worth of footage.
A word to the wise: if you are going to rename your file or organize your media into folders at the OS level, do so before you import your media into your editing app. Once you do so, it's best to leave it as is. If you must move or rename files at a later date, do so from within your editing app so that the crucial link between your file-based media and your editing software isn't lost.
Once you spend all that time transcoding and synching, your new set of media is going to represent lots of man hours. Time to create another set of backup drives: you'll now have two sets of camera original media and two sets of transcoded media. You will never regret this. Trust me.
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