Using a Digital SLR for time lapse

Stonefield wrote on 10/10/2005, 10:03 AM
One of the "many" reasons I've got my eye on a digital SLR is the benefit of creating your own stop motion and time lapse sequences.

My friend used an Olympus digital SLR a few years back in manual frame mode to get some of the time lapse footage I've used in my videos. He told me recently that the new movie The Corpse Bride was actually shot on digital SLR's. Very cool.

I was told long ago how Vegas can also import a sequence of frames right onto the Vegas timeline so that made me wonder....

Anyone else have any experience or examples of using a digital SLR as a time lapse and/or stop motion camera ?

Stan

Comments

birdcat wrote on 10/10/2005, 10:16 AM
FYI - I have a Sony Handycam HC40 and it has time lapse built in (haven't tried it yet though). Haven't done any time lapse since my days with Super-8 but am planning to shortly.
Nat wrote on 10/10/2005, 10:24 AM
I don't have any examples handy but I did make some tests. I have a Pentax *istDS Digital SLR. You can control the camera remotely from a software and it works very well.

Is there something in particular you want to know ?
jkrepner wrote on 10/10/2005, 11:18 AM
Stan,

I've done a few "tests" with a digital camera, should work fine with a DSLR, too. I set Vegas to treat single file jpgs as two frames and the camera automatically names them sequentially 001, 002, 003, etc, so it's really simple. The other awesome thing is that with digital camera you can shoot huge frames then crop and animate in post. If you shoot on a green screen you can fake all sorts of tedious stuff using key frames. I'd suspect any serious compositing work will require a stop to After Effects, but most stuff Vegas will work fine with.

I've had a stop-motion project in mind for 2 years that I want to shoot with a DSLR, but now Tim Burton beat me to it!

Also, from what I've heard, the new Panasonic HD camcorder, the HVX200, *might* shoot single frames to the P2 card. It also does multiple frame rates for motion effects like over/under cranking, making it perfect shooting miniatures and the like.

Jeff

Jay Gladwell wrote on 10/10/2005, 11:32 AM

The Corpse Bride was actually shot on digital SLR's.

That's true, but it was not an "off the shelf" digital camera!

Recently, I read at cinematography.com that using digital still cameras for animation was not really a good idea. The reason being that the exposure and white balance was not consistent from frame to frame at the level required for "motion pictures," each frame's difference caused a flickering.

I don't know if this is true or not as I've never tried it.


Nat wrote on 10/10/2005, 12:06 PM
If you shoot RAW you can set white balance manually and it is very accurate, same for exposure...

There's a big difference between a point and shoot camera and an SLR camera, RAW mode makes all the difference, it's the same as if you were shooting uncompressed on a video camera...
Jay Gladwell wrote on 10/10/2005, 12:36 PM

But wouldn't shooting in the RAW mode require going in a "processing" each frame or could they be batch processed?





Nat wrote on 10/10/2005, 12:43 PM
Photoshop can batch process if needed.
I'm working on a small test I can publish in a few minutes. I shot in JPEG with white balance set to tungsten, so far all the frames are the same regarding color/exposure.
Jeff_Smith wrote on 10/10/2005, 12:45 PM
A friend of mine just got one of these:

http://www.bmumford.com/photo/camctlr.html

Check out some of the videos, very cool stuff. I think they are made to order, somewhere near santa barbara

mjroddy wrote on 10/10/2005, 1:00 PM
Better cameras can be taken out of Auto mode. At that point, couldn't you get the same exposure/ballence on every shot - since you set it once?
Also, a friend is just setting up a handycam-style camera and letting his capture program just grab a frame every X seconds. I'd guess that would have the same problems if in auto mode... I haven't seen any results yet.
Nat wrote on 10/10/2005, 1:19 PM
Here's the test :

Shot with a Pentax *istDS camera in JPEG mode.
White balance : Tungsten preset.
Shutter : 1/8s
Aperture : F3.5
No post processing at all, pictures straight from camera to Vegas timeline.
12 FPS

WMV HD (need fast computer but worth it)
WMV SD (for slow computers)

What do you think ? Looks pretty neat and consistent to me...
aspenv wrote on 10/10/2005, 2:01 PM
Also, check these sites:

nignfilms.com
patrykrebisz.com/stills/FINAL_AE_760k.mov

epirb wrote on 10/10/2005, 4:50 PM
ahhh but Nat you forgot one very important thing...
THE BEER
Nat wrote on 10/10/2005, 5:44 PM
hehe did you just shoot that ?
fldave wrote on 10/10/2005, 5:52 PM
Perfect! Right down the middle.
epirb wrote on 10/10/2005, 7:13 PM
Yup and just drank it too!!!!

Canon 350d...... the DSLR ,not the Beer! : )
Nat wrote on 10/10/2005, 7:21 PM
hmm, makes me thirsty !!
Stonefield wrote on 10/10/2005, 10:51 PM
"Also, a friend is just setting up a handycam-style camera and letting his capture program just grab a frame every X seconds."

...can Vegas do this ??
Jay Gladwell wrote on 10/11/2005, 5:06 AM

Looked fine to me. But I wouldn't want to make a very long animation using a still camera!


johnmeyer wrote on 10/11/2005, 8:30 AM
Couple of thoughts:

1. Some SLRs won't let you lock up the mirror. If you are going to do thousands of pics, you will get both faster response, and also inflict far less wear and tear by getting a camera that lets you lock up the mirror. Specifically, my Nikon D70 does NOT let you lock up the mirror.

2. Scenalyzer lets you capture both stop motion and time lapse directly from video cameras. I'm not sure whether it works with HD cameras, but if it does, that would sure be the way to go.
jkrepner wrote on 10/11/2005, 8:59 AM
Another thing to keep in mind on a similar note:

As far as I know, Digital SLRs do not offer video preview out before the button is pressed like regular digital cameras do. It makes framing a little harder and one must be careful not to bump the camera if doing stop motion.

TorS wrote on 10/11/2005, 9:00 AM
Take a look at this thread
Creating animated movie from digital stills

Tor
Nat wrote on 10/11/2005, 9:49 AM
Hmm I don't agree that framing is harder. In my opinion it's more easy, SLRs feature an optical viewfinder, what you see is what's coming into the lense.

Regarding mirror lockup, from what I understand, the mirror lockup function is ususally activated with the 2 second timer. So basically the mirror will still lift when you press the shutter button, I don't really see how it could cause less wear, i'd be curious to know though.
jkrepner wrote on 10/11/2005, 11:04 AM
Nat, you're right. I'd rather look through the glass any day as well, but sometimes (when shooting minatures) it's tough to get my fat head angled correctly to see the viewfinder :-)

Jeff


john-beale wrote on 10/11/2005, 11:24 AM
I have done a few very short time-lapse movies using digital SLRs (Canon D30, D60, and 20D), here are two examples:
Sunset 1
Sunset 2

If you use a normal ("auto") lens on the camera, which is normally at full aperture and stops down when you take the shot, there is an exposure inconsistency. The iris, being a mechanical device does not have infinite precision. So there is some shot-to-shot variation in the exact exposure, and this gets much worse at very small apertures (and shouldn't happen at all if the lens is wide open).

If you use a manual lens ("stop-down metering") like the MC Zenitar fisheye in the second example, there is no exposure change from this cause, since the iris is always fixed in position.