Post Production 911

Archive for the ‘Camcorders’ Category

So I’m eagerly awaiting the delivery of these “ultra important” HDV tapes that are supposed to becoming for transfer. And right on time, the FedEx guy shows up with a box. I open the tapes, pop one in the deck and… it’s an interview with a high profile celebrity. The sound is perfect. The color is rich… but wait… what the…. OH NO! They shot the celebrity with the auto-exposure turned on. Say it ain’t so!

The tape looks wonderful, but every time the guy leans toward the camera or leans back (which seems to be about every five seconds because the guy is pretty animated) the exposure changes. He’s wearing a light shirt and the background is pretty dark. So when he leans forward, the entire image darkens by about 1/4 stop. Now, that may not seem like much, but 1/4 stop in HDV is like someone fired up an extra 2K softlight in the room. Then the guy leans back and everything goes back to “normal.”

The thing is, there is no way they are ever going to re-shoot this footage, so the only thing to do is fix it. Enter Kirk. A lot of you may have all kinds of ideas about how to solve this problem, but here’s the way I did it:

First I marked each transition where the picture density changed. It turned out to be 83 times across 4 tapes. (Most of the footage was of the brighter variety.) Then I measured the length of each transition. They ranged from about 2-14 frames.

Then I duplicated the sequence.

In sequence number one, I dissolved to black (actually it was emptiness) at each “bright” transition, then dissolved back up at the next transition. So I was left with a whole sequence of nothing but the “normal” footage in the timeline that kept dipping to nothingness (alpha channel).

In sequence two, I did the exact opposite, ending up with all the bright footage, dipping down to nothing at the transitions

Then, I took the “normal only” sequence and played with the density until it matched the look of the bright one.

Next, in After Effects, I composited the two sequences on top of each other, making it look like one long sequence of “bright” footage. I flattened it by nesting it in a new composition. Then I played with the density and contrast until the “bright” footage looked as normal as I could get it.

Then I laid it all back to HDV tapes to have a clean archive master of the adjusted dailies.

How did it look? By my eye, I could see the changes at each transistion. But that could have been because I was looking for and anticipating each change. The client was more than pleased with the adjusted footage. And in the end, when it was all cut together in an EPK, it was downconverted to digibeta and looked amazing. Nobody would ever be able to tell. The biggest shock about the adjusted footage was the producer’s face when I handed him the bill. But it was certainly cheaper than the alternative of not having the footage.

Today’s lesson: NEVER EVER shoot with auto-exposure on unless you are doing run and gun paparazzi work … or home videos.

OLD, REALLY OLD VHS Tapes that don’t play

Here’s one that just happened to me. A client came with a batch of really oldVHS tapes from the early 80’s They were shot on one of those big honkin’ 1st generation VHS camcorders, before VHS C – the smaller cassettes, were invented. Remember those camcorders? Most people shot their wedding or kids birth, then the cameras died and that was it. Or in some cases, those cameras lasted long enough to shoot the kid’s first day of kindergarten. But after that, it was clear that Hi-8 was the way to go.

Those tapes of precious memories went on the shelf and came out to be played every couple of years whenever their was a large family reunion. Someone would either pay for editing or they would hook up two VCRs together and make clones for their grandma’s present. Cool.

As the years rolled by, and finally the decades, the tape would be played on fewer and fewer occasions because new tapes were being shot of new babies in the family. The original stars of the VHS days have now lost their luster… kind of like when the talkies ruined plenty of giant silent stars’ careers. William S. Hart may have been a cowboy celebrity, but when sound came, he was forced to get out of Dodge.

Not to get too morbid here, but as life would have it, Uncle Frank’s health is rapidly deteriorating. As a birthday present, someone wants to make a tape of his late wife. But all the shots of her are on those old VHS tapes.

So the tapes came to me to be transferred to a Quicktime movie for editing in Final Cut Pro. I handled each tape like a Faberge egg, carefully tensioning the reels before putting them in the deck, dusting off all the edges, peeling off the half raised labels where the ancient adhesive had failed about 5 years back.  Then I rewound the tapes by hand to insure the least amount of tape wear on the heads and spindles. I got everything patched to Final Cut Pro and started capturing long before starting the tape, because there often isn’t a second chance to capture the footage once the tape deteriorates with a horrific sound in the machine.

Most of the tapes worked great. Once captured, I never rewound them.

But on one particular tape, when I hit “play” the thing showed no image except various screwy raster. Crap. That was the main tape of Aunt Barbara.  I carefully stopped the tape and ejected it.

It has been my experience that every VCR has different tensions and tolerances, especially old once. So I knew suspected another deck might yield a better playback.

I tried the same careful tape playing routine in another VCR. The results were more encouraging. The picture looked fair, but it only popped on in 10-15 second chunks, with the strange raster in between. At least I knew there was still something on the tape and that the oxide hadn’t all disintegrated off the tape.

I tried a 3rd VCR and had variations of the same results. But I was still encouraged because different images were popping up.  But I was out of VCRs. My next door neighbor had long since given their up for DVD.

Since it was Saturday, I decided to hit a couple garage sales and see if I could find a VCR that would play the tape. I know it sounds goofy, but hey… I also found a wetsuit hat I needed.  After about 20 minutes, I came back with a stack of 5 VCRs that cost… get this…a total of 11 dollars!!

When I got back to my Final Cut Studio, I was pretty deflated when decks one, two, and three, were a bomb. But on number 4… Bingo!   It was beautiful. I almost wept when I saw a healthy and …ahem… sexy Aunt Barbara from back in the day.

The tape was a winner all the way through. I captured her and still had one VCR to spare. Now I can have my own garage sale and get my $2 back.

The moral of the story is that old, very old tapes are as fickle as the old machines that are supposed to play them. So before freaking out and grieving over the loss of a certain old tape, be sure to try a few playback decks first.

So if your tape won’t play, the best technical advice I could give you is to hit the flea market for a new, old VCR. But you might not want to tell the client.

Clever gadgets are fun to play with but not to record your important family events. In fact, just don’t use them. Seriously.

These are the type of cameras we’re talking about here:

Sony DCM-M1, Sony Handycam DCR-DVD108 DVD, Samsung SC-DC164, Canon DC-100, Canon DC-20, etc.

The problem with mini DVD camcorders:

1) The DVDs are very incompatible with many computer DVD trays.
2) A simple scratch when handling the disc and your memories are hosed forever. Look out, it’s a toddler with a peanut butter and jelly sandwich!!
3) They usually only hold a miniscule 10 minutes of recording time at best quality! Ten minutes!!
4) Once finalized, the discs are done for. You can’t re-record over them like you can standard videotape.
5) The discs are expensive.
6) Special “ripping” software is usually required to edit the material on the discs.
7) There is substantial compression used on the image. If you try to project it for an audience on a big screen or do any kind of video compositing, the footage is going to have tons of really unpleasing artifacts.
They are really hard to clone for friends and relatives due to the compatibility issues.
9) People try to stick them in sideloading CD slots on computers it jams in there, resulting in repair fees and/or downtime.
10) Watch out for that toddler with the peanut butter sandwich… Oh my God!! he’s grabbing the disc off the table.

Yeah, this format wasn’t the greatest idea of gadgets. Please copy your material ASAP to a different format and dump that camcorder as fast as you can.

By the way, a good way to copy the disc to a better format is to use the factory-provided wire and connect it to a MiniDV camcorder or a standard DVD recorder.

kirk