Needables
  • Canon EOS 7D 18 MP CMOS Digital SLR Camera with 3-inch LCD (Body Only)
    Canon EOS 7D 18 MP CMOS Digital SLR Camera with 3-inch LCD (Body Only)
    Canon
  • Canon EOS Rebel T2i 18 MP CMOS APS-C Digital SLR Camera with 3.0-Inch LCD (Body Only)
    Canon EOS Rebel T2i 18 MP CMOS APS-C Digital SLR Camera with 3.0-Inch LCD (Body Only)
    Canon
  • Redrock Micro Captain Stubling DSLR Bundle, with Baseplate & Lens Gear Size A 32 Pitch, Black
    Redrock Micro Captain Stubling DSLR Bundle, with Baseplate & Lens Gear Size A 32 Pitch, Black
    Redrock Micro
  • Canon EOS 5D Mark II 21.1MP Full Frame CMOS Digital SLR Camera (Body Only)
    Canon EOS 5D Mark II 21.1MP Full Frame CMOS Digital SLR Camera (Body Only)
    Canon
  • Canon EOS 1D Mark IV 16.1 MP CMOS Digital SLR Camera with 3-Inch LCD and 1080p HD Video (Body Only)
    Canon EOS 1D Mark IV 16.1 MP CMOS Digital SLR Camera with 3-Inch LCD and 1080p HD Video (Body Only)
    Canon
  • The DV Rebel's Guide: An All-Digital Approach to Making Killer Action Movies on the Cheap (Peachpit)
    The DV Rebel's Guide: An All-Digital Approach to Making Killer Action Movies on the Cheap (Peachpit)
    by Stu Maschwitz
  • Panasonic DMC-LX3S 10.1MP Digital Camera with 2.5x Wide Angle MEGA Optical Image Stabilized Zoom (Silver)
    Panasonic DMC-LX3S 10.1MP Digital Camera with 2.5x Wide Angle MEGA Optical Image Stabilized Zoom (Silver)
    Panasonic
  • Zoom H4n Handy Portable Digital Recorder
    Zoom H4n Handy Portable Digital Recorder
    Zoom
  • Adobe After Effects CS4 Visual Effects and Compositing Studio Techniques
    Adobe After Effects CS4 Visual Effects and Compositing Studio Techniques
    by Mark Christiansen
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Entries in Cameras (101)

Monday
08Mar2010

Converting 30p to 24p

As the long-awaited 24p firmware update for the Canon 5D Mark II draws near, I joined Mike Seymour on episode 57 of the Red Centre podcast to talk about how excited I am that it marks the end of painful workarounds for the 5D’s no-man’s-land frame rate of 30.0 frames per second.

For as long as I’ve had my 5D Mark II, I’ve avoided using it for any projects that I could not shoot 30-for-24, i.e. slowing down the footage to 23.976 fps, using every frame. My 5D has been a gentle overcrank-only camera. There are plenty of occasions to shoot 30 frames for 24 frame playback—we do it all the time in commercials to give things a little “float,” or to “take the edge off” some motion. I still do this often with my 7D. Whatever frame rate I shoot—24, 30, 50 or 60, I play it back at 24. Just like film.

Folks ask me about 30p conversions often. Twixtor from RE:Vision Effects is a popular tool for this, as is Apple’s Compressor. Adobe After Effects has The Foundry’s well-regarded Kronos retiming technology built-in. All of these solutions are variations on optical flow algorithms, which track areas within the frame, try to identify segments of the image that are traveling discretely (you and I would call these “objects”), and interpolate new frames based on estimating the motion that happened between the existing ones.

This sounds impressive, and it is. Both The Foundry and RE:Vision Effects deservedly won Technical Achievement Academy Awards for their efforts in this area in 2007. And yet, as Mike and I discuss, this science is imperfect.

In August of 2009 I wrote:

I’m not saying that you won’t occasionally see results from 30-to-24p conversions that look good. The technology is amazing. But while it can work often, it will fail often. And that’s not a workflow. It’s finger-crossing.

On a more subtle note, I don’t think it’s acceptable that every frame of a film should be a computer’s best guess. The magic of filmmaking comes in part from capturing and revealing a narrow, selective slice of something resonant that happened in front of the lens. When you use these motion-interpolated frame rate conversions, you invite a clever computer algorithm to replace your artfully crafted sliver of reality with a best-guess. This artificiality accumulates to create a feeling of unphotographic plasticness.

Of course, it’s often much worse than a subtle sense that something’s not right. Quite often, stuff happens in between frames that no algorithm could ever guess. Here’s a sequence of consecutive 30p frames:

Right-click and select View Image to see full-resNothing fancy, just a guy running up some stairs. But his hand is moving fast enough that it looks quite different from one frame to the next.

Here’s that same motion, converted to 24p using The Foundry’s Kronos:

Right-click and select View Image to see full-resBlech.

Again, don’t get me wrong—these technologies are great, and can be extremely useful (seriously, how amazing is it that the rest of the frame looks as good as it does?). But they work best with a lot of hand-holding and artistry, rather than as unattended conversion processes.

(And they can take their sweet time to render too.)

I’m so glad we’re getting the real thing.

Friday
05Mar2010

For the Record Canon

I’ll take one of these:

This 50mm f/1.2 cappuccino cup is in response to the fabulous coffee mug that looks like a 70–200mm lens, which Canon was giving out at the Winter Olympics to people who had better watch their back when I’m around.

By the way, there’s a new version of the popular zoom lens that I want almost more than I want another cappuccino. Pre-order it now and I get a little closer. To the cappuccino.

Canon 70–200mm f/2.8L IS EF II USM lens available for pre-order at Amazon.

Monday
01Mar2010

Canon adds 24p to the 5D Mark II and I Blame You

Readers of ProLost, pat yourself on the back.

In the 18 months since Canon announced the Canon 5D Mark II, you’ve written, you’ve called, you’ve left comments here and on Vincent Laforet’s blog. You politely but firmly harrassed Canon personel at trade shows. Perhaps most significantly, you put your money where your mouth is and bought 7Ds, showing Canon that 24p is even better than Bokake.

It delights me to no end to read these words in a Canon press release:

Developed following feedback from photographers and cinematographers, Firmware 2.0.3 further enhances the EOS 5D Mark II’s excellent video performance. The addition of new frame rates expands the camera’s video potential, providing filmmakers with the ability to shoot 1080p Full HD footage at 24fps (actual 23.976fps)—the optimum frame rate for cinematic video. 25fps support at both 1920x1080 and 640x480 resolutions will allow users to film at the frame rate required for the PAL broadcast standard, while the new firmware will also change the 30fps option to the NTSC video standard of 29.97fps.

I underlined a couple bits in there. Do they sound familiar? The wording is almost directly lifted from ProLost posts and my other communications with Canon.

Does it seem like I’m patting myself on the back? Well I am. But you should too. I know that, at best, I played maybe a tiny role in this. But this is a very cool thing that has happened here—we spoke, and Canon listened.

Read the full press release at dpreview.com.

Take a trip down memory lane and view all ProLost posts tagged Canon 5D Mark II.

And heck, buy a 5D Mark II from Amazon and support this site. I love mine, and I’m about to love it even more.

Monday
08Feb2010

The Revenge of No More Excuses

Canon today announced the Rebel T2i, AKA the 550D. It’s an 18 megapixel entry-level DSLR for $800. It features all of the video modes of the Canon 7D and 1D Mark IV: 29.97, 23.976, and 25 fps at 1080p, along with 50 and 60 fps at 720p.

I haven’t seen any samples of the video yet, although I’m sure we’ll soon be buried by them. [UPDATE: Did I say soon? Here you go (also embedded below)—thanks Jay]

I’m sure we’ll also be treated to many loving comparisons of how image quality, noise, compression, etc., stand up to Canon’s other offerings.

I would not expect the Rebel to represent any progress on the HDSLR shortcomings of rolling shutter and aliasing/moiré.

Two years ago I called the Canon HV20 the no-more-excuses DV Rebel camera. It was an HD camcorder the size of a soda can that recorded 24p with limited manual control, for under $1,000. Filmmaker Ayz Waraich made a beautiful short film with it called White Red Panic.

Folks can spend a lot of energy writing about cameras and filmmaking, about how this or that forthcoming tool will be a “game changer” or revolutionize the blah blah blah. Ayz’s film reminded us (and I include myself in that “us”) that filmmaking beats bellyaching every time.

Then along came the HDSLRs, and speaking only for myself, I thought there was some important stuff to bellyache about. Some potential that could be realized if only a few niggling details were addressed. The year that followed the introduction of the 5D Mark II was equal parts frustration and reward, as Canon and others took pot-shots at the target, always missing, but sometimes in ways that produced useable cameras.

I marked the Canon 7D as the real arrival of HDSLR cinema. The price, the frame rates, and sensor size all made great sense, and video finally earned it’s own button, more or less. There are still big problems with it of course, but they can be worked around. I’d hate to be working around them with a paying client over my shoulder, but for my personal work, I don’t mind. And if I get really stuck, I do have an actual video camera lying around here somewhere.

It seemed to me that no sooner had the HV20 come out that it was rendered obsolete by subsequent models, and its priced dropped from affordable to ridiculous. We went from “no more excuses” to “seriously, what more do you want” in a matter of months.

With the Rebel, HDSLRs just hit that point. If you have any interest in what they can do, there’s now a camera that you can buy for less than the cost of a decent tripod.

In fact, depending on how it performs, the Rebel may just be the new sweet spot. In the same way that the 1D Mark IV’s $5,000 price tag accounts for a bunch of pro stills features that don’t net much for the filmmaker, the shortcomings that put the Rebel at half the 7D’s price are most likely all in the stills department as well. If video is your primry interest in a DSLR, the Rebel could well represent the most bang for the buck.

Although the MSRP for the body is $799, Amazon seems to want to cash in on early enthusiasm for this rig—their pre-order price is currently listed at $899.

UPDATE: Less than six hours later, Amazon has amended the pre-order price to $799.

I’ve created a Rebel Starter Kit page on the ProLost store for those looking to take the plunge on the cheap.

Saturday
16Jan2010

Gearing Up

Nothing profound here, just some fun new gear mixing well with some trusty old gear into what for me is a “where have you been all my life” rig.

Pictured here is the Canon 7D with the venerable Canon 50mm f/1.4. It’s sitting on the skeleton of the Redrock Micro “Captain Stubling” rig, handles removed, and slipped into Redrock’s tripod platform plate. That’s sitting on a crusty old Bogen fluid head that I had lying around (the current equivalent in size would probably be the popular Manfrotto 701HDV).

That’s mounted to my new slider rig from Glidetrack. It’s the Glidetrack HD to be specific, and I chose the 1M length, which feels like the right balance of utility and portability for me. I’m more likely to use it for push-ins than for side-to-side motions, and when you’re using it for the “slow creep,” there’s only so long a slider can be before it shows up in your shot. There are a number of terrific options out there for slider rigs, but the Glidetrack was the right choice for me because of its minimal weight and mechanical simplicity.

Hovering above it all on the Noga arm is the Ikan V5600, which is a comparatively inexpensive, lightweight HDMI monitor. It doesn’t have quite the full 720p resolution the peaking features of the Marshall V-LCD70P, [CORRECTION, Mitch below pointed out that the Marshal is not 720p—in fact it has a lower resolution than the Ikan!], but it’s still quite usable for focus. The photo above lies in its streamlined simplicity—the power and HDMI cables for the monitor make it quite a bit messier in practice.

Speaking of focus, the Redrock Micro whip makes that a little easier when back-panning on the slider. The whips come in sets of three — shown below is the shortest of the bunch. The build quality on the Redrock whips is very good.

What’s missing obviously is a good set of sticks, or possibly two, to properly support the Glidetrack. I’m still shopping and open to suggestions.

Gear porn shots like these requires bokake, here courtesy of the Canon 50mm f/1.2L on my 5D Mark II, the price of which was recently lowered.

 

Disclaimer: I contributed to the design of the Redrock Micro Captain Stubling rig, which recently received a glowing review on episode 53 of the always awesome Red Centre podcast.

As always, I am grateful if you shop through any of the above links, or at the ProLost store 7D Cine page!