Tag Archives: Time-Lapse

A Short Vacation on Umbagog Lake

Betsy and I snuck out of town for a few days to catch our breath and meet up with some friends at Umbagog Lake in New Hampshire.

We had camped on the lake a last year and this time we decided we would try camping at one of the remote sites, in our case site 1 on the “Big Island” located about 2 miles from the main grounds.  Our son Jay joined us and he had arrived there a few hours beforehand.  Our friends were to arrive the next day and set up at site 7, which was about a half-mile around the island.

We arrived with good weather but do to timing and weight limits of our kayaks my camera equipment stayed in the car until I could retrieve it the next day – by which time the weather was beginning to play some games.  I’ve included a bit about the tradeoffs made for this trip in the technical section at the end of the article.

The island was nice — kind of a northern rainforest feel to it…



On Saturday our little flotilla paddled around the island with the goal of getting to the Androscoggin River inlet.  After a few hours paddling we stopped for lunch and, by then, I had decided to turn back as my tendonitis was sending some warning signs.  Because we were camping I was piloting our 16-foot tandem kayak which weighs quite a bit more than my normal boat.  Coupled with very little paddling this year, the miles were beginning to take a toll on the arms.   Sigh!

Shortly after we turned back it started to rain (lightly), so perhaps it all worked out well anyways.  The nice thing is that the light turned soft and we were getting a bit of saturation in the vegetation.   Forests always seem so peaceful, but I’m reminded that they are really battlegrounds for plants.  Conifers versus deciduous, leaf vs needle vs moss…


Umbagog is also home to a number of Loon families and at least one of them dwells near the island.  The calls at night are simply delightful.   We paddled fairly close to this mother/youngster pair.  It was this moment that I felt REALLY annoyed about leaving the 500mm f/4 in the car (logistics, once again, rearing its ugly head).



The fast-changing weather may have destroyed the opportunity for glorious sunrises and sunsets, but it did provide an opportunity for some soft light within the woods and the opportunity to record some time-lapse sequences.   I had one and a half tripods with me.  The Gitzo was set up to record the time-lapse movies while I padded around the woods with the Gorillapod.   Here’s the 40D rigged for the inevitable inclement weather.

Doing macro photography with a Gorillapod turned out to be somewhere between surprisingly good and quite challenging, but the wind was the real spoiler for getting good macro shots.   Faced with incessant winds I decided to make lemonade.  If I couldn’t get things to sit still then I’d take advantage of the movement.  I switched the 5D to video.

Here’s a little short that incorporates video captured with the 5D/Gorillapod (mostly) along with the time-lapse sequences.

[youtube]http://www.youtube.com/watch?v=tswx1kRRbsE[/youtube]

The rain was getting a bit more persistent and this 30-second exposure turned out the be the last image for the trip.

Technical background:

First a bit about equipment choice.   We were camping on an island that was a 40 minute paddle from power and something solid over your head.  Whenever I travel into the unknown my camera bag of choice is the Lowepro DryZone.  I’ve had this bag for probably 9 years now and it only comes out when things might get hairy.  The DryZone bag is a regular camera bag that is surrounded with a reasonably watertight shell.  (And no, I haven’t tested it recently.)   If the kayak is swamped or our tent site is inundated by a thunderstorm (which, by the way, happened) I like to keep the sensitive electronic gizmos reasonably dry.  Much less stress when you don’t have to worry about that.

I packed the Canon 40D and the 5D Mark II cameras.  You might ask why I didn’t bring the 7D as it would be better than the 40D – and you would be correct.  The 7D stayed home nice and dry because I had a business filming assignment the day after I returned and, although I don’t use the 7D for video shoots it is my backup camera.  In heading out for a vacation I decided to only risk half of my revenue-generating equipment.  If the worst happened I had everything I needed to meet my obligations to my client when I returned.

The trusty 70-200mm f/2.8, 24-70mm f/2.8, 16-35mm f/2.8, and the 100mm f/2.8 macro rounded out the lens choices.  The 1.4x teleconverter came along for the ride along with a wide set of filters, Zacuto Z-Finder, spare batteries, plastic bags, clips, rubber bands, and CF cards.  A separate utility bag, which remained in the car, held the chargers and other non-critical items.  I also brought along the 500mm f/4 – but that doesn’t fit in the DryZone bag.  Sadly, considering the less than ideal weather along with the amount of cargo we had to ferry out to the site, I decided to not bring the 500mm to the island.  For the most part this was a good decision.  For stabilization I brought along the Gitzo tripod with the H38 video head and a Jobi Gorillapod.   I didn’t end up doing much in the way of tilt/pans with the video so the H38 head turned out to be a lot of weight and bulk I could have done without — but frankly that had more to do with the weather.

I’m beginning to wish I had purchased a Vari-ND filter.  My 5-stop setup just isn’t up to the task for really long exposures when light levels are even moderate.  This turned out to be a limiter on some creative ideas I wanted to explore (e.g., blurring the clouds).   The other reason for wanting more stops is that I was forced to use apertures like f/16 and higher for some of the images and the dust spots just come out of woodwork when you do that.   You can probably see a more than a few in the time-lapse sequences.

While the 40D was cranking out time-lapse sequences I screwed the Gorillapod to the base of the 5D and it did a pretty decent job.  I used a cable release to keep the vibration to a minimum — although as I noted the wind eventually got the best of the situation.  I will definitely try that again under different conditions — the Gorillapod works naturally near the ground — unlike my tripod.

The first two timelapse sequences were captured using S-Raw files, then processed by Lightroom for exposure/contrast/cropping.  I really like using S-RAW for time-lapses — the file format provides decent storage utilization while preserving the ability to fully tune the images in Lightroom prior to rendering it as a video file.  Due to card constraints the 3rd timelapse in the video was captured via JPEG.  This turned out to especially annoying because the sky lightened more than my 1-stop safety and blew out badly for the first 200 frames (of nearly 1000).  Rats.  If it had been S-RAW I might have been able to recover the sky a bit and extend the sequence a bit more.

All images (including time-lapse sequences) processed by Lightroom 3.  Techniques varied widely for the images so I won’t bother trying to spout off settings.

The 5D clips were converted to ProRes LT by MPEG Streamclip and the video was edited and graded with Final Cut Pro.  A shout out to my friend Duke Levine for granting me permission to use his great music on these personal video projects.  I thought the tone of the song matched the dreary weather just great.   But, as we all know, bad weather makes for great photographs — so I’m not complaining in the slightest!

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Stone Mountain Arts Center Lobby Barn Raising

On a beautiful Memorial Day weekend a team of timber-framers and neighbors came together to raise a 200-year-old barn once again.

In 2005 the barn’s much younger sister was literally flown over it to a new foundation where it became the Stone Mountain Arts Center performance space.  The older barn was disassembled and stored in a nearby field, quietly waiting for its chance to serve again.

Restored by Scott Campbell (Maine Mountain Post & Beam) the structure was raised on its new foundation just a few feet from its original location.  The barn will now serve as a lobby and reception area for the Arts Center.

I was there to document the raising of the barn, a 10 hour process involving many hands, backs, and one hydraulic crane.  It was humbling to know that a couple of centuries ago a similar event took place with most of the same timbers.  I reckon it may have taken more people and more time (and probably a horse or two).

A full, annotated, gallery of the event is available on my SMAC photos page: [url]http://smac.dmg-photography.com/SMAC-Lobby-Barn-Raising[/url]

I shot over 500 stills, 200 video clips, 22 minutes of HDV footage, and a 3000-frame time-lapse video.  This is the first of what I suspect will be several “products” related to this event.   I hope to create a couple of short-form documentaries or music videos using the video and stills.   Here’s the first video from the event, a time-lapse of the the raising:

[youtube]http://www.youtube.com/watch?v=SHzVqBAUWiY[/youtube]

Below are a few of my favorite images from the day.  After that I include some technical notes on the filming process (settings and setup).





As a fund-raiser for the barn people could sponsor a peg and have a message written on it.   When the barn is refurbished in another century or two, these messages will be there to read — a time-capsule in plain sight.  These are just a few of the many pegs that carried messages to the future:


The large hammer is called a “beatle” — because it is used to beat a post or beam into place.



When the structure’s is completed a ceremonial “wetting bow” is nailed to the peak:





Technical notes and behind the scenes (including my mistakes):

I had nearly every piece of equipment I own involved in this project:

1) 22 minutes of the initial wall raising was filmed with a Sony HC-7 HDV camcorder that was attached to a signpost using a Jobi Gorillapod and some elastic ties.  By the time the crane arrived the sun was MUCH brighter than when I set the camera up.  So much brighter that I couldn’t see the viewfinder well enough to tell if the film was rolling.  So I just shut it off, turned it back on, pressed the record button and hoped for the best.

Why 22 minutes?  To be honest this camera was just a bit of extra coverage and I was using up what was left on a tape.  I knew this was going to be at least an 8 hour process and I had no intention or reason to film all of it.  I figured the first wall would take less than a half-hour to raise and gambled from there.

2) The time-lapse video was captured with a Canon 10D mounted with a 16-35mm f/2.8L lens at 16mm. The exposure was set manually: 1/80, f/11, ISO 100 and fixed white balance: 5800K.  Because of the length of the capture I elected to shoot in JPEG, medium resolution (2048×1152) as this would give me sufficient resolution for a 1080p video frame but still fit the day on a couple of 4GB cards.  The camera was controlled by a Canon TC-80 intervalometer.

The camera was mounted on a tripod and ballhead which was fixed to the top of a step ladder with gaffers tape.  The step ladder, was set on a reasonably firm surface and ballasted with some spare post pieces that were hanging around.  This provided a reasonably stable platform, although you can see small shifts every once in a while when I ascended the ladder to check on exposure, batteries, etc.    By incredible luck (for me that is) the camera was able to be aimed almost directly north which meant that the sun was always behind the camera, eliminating a chance of lens flare.  Putting a hood on a 16mm lens seems superfluous, but I suppose I should have brought one along.

The camera has a dual battery setup and it performed well considering the age of some of my batteries.   If you look closely you will see that there is a slight skip in the video when be broke for lunch.  I changed out the batteries with another set at that time.

The 10D was not my first choice for this assignment.  It was a backup camera.  I wanted to use my 1D Mark II for the job.  The 1D’s sensor has a 1.3X crop factor versus the 10D’s 1.6x.  The 1D would give me a much larger field of view, and I really wanted it given where the camera had to be placed and the size of barn – especially because I planned on cropping the image down to 16×9 for the video.   Being a careful planner, I had scoped this out and fired some test shots on Sunday afternoon to confirm that this was the better camera to use.  I had also brought along two batteries for the 1D and its charger.  What I didn’t bring is the AC cord for the charger and the Ni-MH batteries don’t hold a charge well for long periods of time — so I had planned on charging them Sunday night.   I discovered the lack of a cord around 7pm — which is precisely when the nearest Home Depot closed on a Sunday.

And that’s why I bring backup cameras…

Because of the narrower field-of-view with the 10D I had to guess how tall the barn would be and try to frame it accordingly while still keeping some of the interesting stuff in the foreground.   If you watch the time-lapse video you’ll see that the peak of the barn JUST fits into the frame and so I elected to do a little downward tilt of the camera, moving it slowly across about 8 or 9 frames.

I had planned the time-lapse to run about 90 seconds covering the 6 hours, so I had set the camera to take an exposure every 15 seconds, mostly to make sure that I kept within the 4GB limit of the CF card I was using.  When the noon-time switch was made I noticed I had used just over 2GB and so I changed the timing to every 10 seconds for the “second half”.  The difference isn’t all that extreme but I think it makes some of the crane movements much more fluid and only extended the run-time a slight amount.

3) Video was shot using the Canon 5D Mark II, 1080p at 30fps.  I used a 3-stop ND filter and a polarizer on the lenses to cut the light down and give a decent depth of field.  I typically shot at 1/50 second, ISO 400, and around f/5.6 — depending on the scene.  The camera was stabilized on a monopod, although occasionally used a tripod coupled with the Zaza Slider.   I used both the 24-70mm f/2.8L and the 70-200mm f/2.8L IS lenses (mostly the latter) for the video work.   Because I was shooting video most of the time (although I shot over 160 stills using the camera) the Zacuto Z-finder made the day a lot nicer.

Audio was not a primary concern for this shoot, but I wanted something cleaner than the camera mic.   I had brought along the JuicedLink and some good mics, but opted to just use a wired lav clipped to my shirt and let the 5D do automatic levels (horrors!).   Again, I was just looking for natural sounds, but not a structured soundtrack.   If I had approached this more as a documentary featuring, say, Scott and wanted to capture dialog I would have used the wireless mics and mixed in natural sound from a shotgun.

4) Stills were captured with the 1D Mark II (until the batteries wore out) and then the Canon 40D.  The still camera got whatever lens the 5D wasn’t using at the time (mostly the 24-70mm).  The camera was set in aperture-priority mode, ISO 320, and around f/5.6.  This gave shutter speeds around 1/1200 to 1/2000 second during the day and would freeze the action well.  This was in marked contrast to the 5D which would have lots of motion blur at 1/50 second because of the video settings.  I could move between the two looks the cameras would give as needed.

5) I had my MacBook Pro set up in the Arts Center ready to process cards at various points during the day.  My little area also had battery chargers going for (almost) all of the cameras.  This worked out well and I was able to show people some morning shots and preliminary bits of the time-lapse by the time lunch was over.   By the time I left for the evening I had all of the stills processed through Lightroom and the video clips (all 23GB worth) were previewed.

Other than my charger debacle, everything worked as I had planned and I’m really happy with the results and look forward to sharing more of them with everyone in the near future.

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Harmony Halloween Horse Show – A Different View

wpid1320-2009A-385-3050.jpg

When I do an event shoot I take a LOT of pictures – (often) hundreds to (occasionally) thousands of them.  When I post galleries I edit them down to to a small fraction of the day’s captures and then I whittle it down to a handful of personal favorites for a blog posting.  My editing process involves several passes of the photographs: the first pass involves deleting bad frames (badly blown or out-of-focus exposures, test shots of the ground) — you know, utter garbage.  And I really delete them.   The subsequent phases involve various forms of rating and have a lot to do with the particular event and why I was there and what kind of story I’m trying to tell with the images.

The bottom line is that a LOT of photos end up on the proverbial cutting room floor.   Wouldn’t it be nice if I could use them all without inducing eye-clawing boredom on the viewer’s part?   Well, here’s my quick attempt at such a thing — let me know what you think.   758 images in 100 seconds…

[vimeo]http://vimeo.com/7483048[/vimeo]

(Also available on YouTube HD)

Technical stuff:

I originally approached this using a new feature of Lightroom 3 (Beta) that allows exporting of slideshows in H.264 video.   This is a really cool feature and I will certainly make use of it for certain projects.  (It is also a slick way to easily produce more traditional time-lapse videos directly from Lightroom.)   As with most things there are tradeoffs and the drawback of this direct-from-Lightroom technique is one of performance and flexibility.  It takes a LONG time for Lightroom to generate the video and when you are done you may find that you wanted a different pacing — and then you’ll end up generating it again.

The bulk of the time was spent tuning the images in Lightroom.  In a normal edit I only spend time fine-tuning the looks of the selected images, but in this case all of them needed some level of processing.   Fortunately I shoot in manual mode so the input exposures are pretty consistent.  This means that I can apply the same corrections to large sets of images at a time using the Synchronize tools in Lightroom.  I even created a few Develop Presets along the way to make this even easier for the shoot.  The emphasis was on creating groups of similarly exposed images so that the video levels wouldn’t be jumping too far out of whack. There are a couple of ways of approaching this, but in my case I created a separate Lightroom catalog with just this shoot in it — so the edits of my selects didn’t affect the edits for the video.   I could have also achieved the same result with a collection of virtual copies and may well do this in the future because it allows me to keep both end-products in the same catalog.

I used the same Slideshow capability in Lightroom, but opted to generate JPEG images instead.   (This output option is plain to see Lightroom 2, but you have to press the Option (Alt on PC’s) key in the new Lightroom 3 interface.)  For this video I selected the output size 1280×720 to match the 720p HD frame size.  Lightroom took almost an hour to generate the 758 frames on my 4-processor MacPro.  From there I open the images as an Image Sequence in Quicktime Pro and  select a frame rate.  10 frames per second happens to be close to the burst rate of my Canon 1DMk2 camera so the jump sequences almost play in “real time” and the pacing for the rest of the images is pleasingly frenetic.   The important part here is that if I didn’t like the frame rate choosing a different one and previewing it takes a few seconds rather than hours.

It is important to note that the use of Lightroom’s Slideshow feature is important to the success of this workflow.  If you chose to simply export the images they would end up being different sizes (unless you used identical cropping on every single one of them) and they also would not be sized for a video frame.   If the generated images are not identical in terms of aspect and resolution they will not be included in the Quicktime image sequence.  Using the Slideshow option allows you to generate consistently sized image frames with whatever background you want to use.

After generating the frames in Lightroom and rendering them as an image sequence with Quicktime Pro, I imported the video file as a clip into Final Cut Pro where I added the titles and credits and then added the soundtrack (thank you Duke!).  Once I had the music there I realized it might be fun to break up the video a bit to correspond to the music.   This is a creative process where you can absolutely go overboard.  Since this video was meant to be just a fun use of “excess” images I tried to keep it simple.  I then added the titles and credits and then uploaded it to the YouTubes…

I did some basic color grading in Final Cut, keeping the images coming out of Lightroom pretty basic.  I edit video in a different gamma than photographs (1.8 versus 2.2) so it is better to send Final Cut “flat” images and work the final result from within the video editing suite.

I thought the result was pretty cool and tells the story of the event in a unique and entertaining way.  I’ll likely alter my shooting slightly to enhance the results of future videos.  What I would normally consider gratuitous shots can now form the basis of short stop-action sequences.  Yet another tool in the story-telling kit.

—–

My thanks to Duke Levine for his permission to use his music in my blog videos.  If you like what you hear, visit Duke Levine’s MySpace page and pick up one of his albums.

Photos from the Harmony Halloween Horse Show can be found at: events.dmg-photography.com

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