Total Lunar Eclipse Coming Monday, Dec 20!

Total Lunar Eclipse Coming Dec 20!, originally uploaded by Jeff Sullivan.

The full moon enters the earth's shadow during a lunar eclipse. The next one will occur December 20, 2010: http://eclipse.gsfc.nasa.gov/OH/OH2010.html

This eclipse will be well suited for viewing from North America, particularly the West Coast, with the darkest portion of the eclipse happening at 12:16am Pacific Standard Time.

I'm working out detailed shooting strategies for the following scenarios, so I can decide which ones to shoot and which lenses I'll need to capture each at maximum resolution:

- Moonrise in "golden hour" daylight before Sunset:
- Continued moonrise in best post-sunset light
- Night landscapes with full moon in penumbral dim state
- Telephoto shots of moon in various eclipse phases
- Entire visible eclipse (sequence for still shots, timelapse video or phase composite photo)
- Entire total eclipse (sequence for still shots, timelapse video or phase composite photo)
- Moonset in best pre-sunrise light
- Sunrise to moonset, "golden hour" daylight

I've spent a few hours figuring our rise/set and eclipse angles so I can select a general site, specific shooting positions where I can incorporate landscape elements into the shots. The moon will cover a tremendous amount of sky on that night, rising in the northeast and setting in the northwest. To shoot from moonrise to moonset he site will need to have shooting opportunities covering roughly 240 degrees, almost 3/4 of a full 360 degree circle.

I'll make the final decision on site later this week once I can see a 10 day weather forecast, but I'm leaning towards a Southern California desert location to reduce the odds of having interference from weather.

Leonid Meteor Shower is Underway!

Leonid Meteor Shower is Underway, originally uploaded by Jeff Sullivan (in Yosemite).

The Leonid Meteor Shower tends to be one of the best meteor showers of the year. With the moon setting at 2:50am this morning, I made it out by around 3:30am this morning to check it out. It was doing really well, with rates as I watched appearing to be as high as a meteor per minute. Of course not all of these fell in the field of view of my cameras.

The meteor per hour rate should increase for the next night or two. The best viewing of the Leonids this year is during darker skies after moonset, which here on the West Coast will be 3:30-5:30am tomorrow morning (Nov 17) and 4:30-5:30am the following morning (Nov 18).

The first image here was taken on my Canon 40D: 30 seconds at f/2.0, ISO 1600 with a 24mm lens (38mm effective). The second image was taken on my Canon 5D mark II using a 16-35mm lens, using 30 second exposures at f/2.8, ISO 6400.

Now that I know that this year's shower is reasonably robust, I'll try to get up earlier tomorrow morning and drive to a location where I can set up some nice compositions.

Perseid Meteor Showers

Perseid Meteor Over Mono Lake Tufa, originally uploaded by Jeff Sullivan.

My next photography adventure was heading out to shoot the Perseid meteor showers. After a realtively weak showing at the first night at Mono Lake, in part due to the large amount of dust in the air there (great for sunrises, not so great for seeing stars or meteors rising over the eastern horizon), I drove down to the higher and clearer Ancient Bristlecone Pine Forest.

This time I had spoken to Tom Lowe several times in the weeks leading up to the event and I decided not to wait to capture the crescent moon setting over the crest of the Sierra Nevada before driving up to the Patriarch Grove at 11,300 feet. Several other photographers on Flcir who had expressed an interest in shooting this event had communicated that they would not be making it after all, but photographer Jean Day was expecting to join us. As luck would have it, her truck was up on a jack with a flat tire, shortly after Schulman Grove, still 10 miles and at least a half hour to 40 minutes short of my destination.

Even worse, someone who stopepd to help had overextended the jack, breaking the handle in the process. I had both cans of Punture Seal and an air compressor built into my minivan, but my jack was too short, so I shot the crescent moon descending behind some communication towers while we waited for an adequate jack.

After several people stopped we eventually were able to get the truck down off its jack, and drive, inflate, drive, inflate our way to highway 168 before the leak in the tire got too bad to reinflate. Fortunately we had been able to flag down a flatbed tow truck on its way to another call, who would now be looking for her as he drove out. Jean urged me to get back up there and shoot, so I headed back up.

To make a long story short, I was off to a late start, but I found a shooting location which would not get lit up by late arrivals, and set my camera and intervalometer timer loose to capture hundreds of consecutive 30 second shots.

Perseid Meteor Shower III HD Video

Perseid Meteor Shower III HD Video, originally uploaded by Jeff Sullivan (www.MyPhotoGuides.com).

This is my third and longest timelapse sequence yet from the Perseid Meteor Shower in August. I'll try to have sequences four and five done soon.

Make sure you have the HD display switched on (click on the HD symbol).

One of my first videos of this event was featured on Discover Magazine's blog.

Bear in mind that this is a timelapse video, so in playback as video everything is dramatically sped up. Each frame is a 15 to 30 second shot, but the video is assembled at a relatively slow frame rate of only 12 shots per second, so in video formats that play at 24 to 30 frames per second, the meteors show up for roughly two frames. In other words, each second of video displays ten to twenty minutes of shooting time. Apparently our eyes and minds are quick enough for us to perceive the meteors with some persistence even though they show up for only 1/12th of a second.

Anything that travels across the screen or survives in the video for more than a brief flash is a jet or satellite (and you can't see many of the meteors in most online copies of the video, unless you follow the links to Flickr and enable the highest HD playback available there). I'll try to find video hosting sites that enable blogging of copies that offer higher resolution playback, preferably full 1920 x 1080 HD. I'll also try to find some nice background music avalable under the Creative Commons CC-BY license (which does not seem to be a trivial search).

Meanwhile, if you'd like to explore timelapse photography yourself, download the free VirtualDub software which can convert a sequence of JPEG files into video, and check out the forum on Timescapes.org for discussions on techniques. You'll need a tripod of course, and your sequence of still images will turn out best if you use a remote switch that has an intervalometer (timer) function.

Perseid Meteor Over the High Sierra

Perseid Meteor Over the High Sierra, originally uploaded by Jeff Sullivan (www.MyPhotoGuides.com).

If you can find a patch of sky with minimal light pollution, the peak showers happening midnight to 5am tonight (Wed), and they'll continue at a declining rate for a few more days. The meteors appear to come from the constellation Perseus, which is near Casseopea (looks like a big W), and rises to the East/Northeast. This article has more info:

Strong Meteor Shower Expected Tonight

This shot of the Milky Way over the Sierras was taken earlier in the evening. Select the photo at the top of this article to go to its Flickr page and examine the EXIF shot details (using "More Details" link in the right column).

Lessons Learned: Photographing the Lunar Eclipse

For the August 28 lunar eclipse I decided to go shoot by Mono Lake, where there would be no light pollution and at an elevation of about 7000 feet there would be minimal atmospheric interference. I spent the previous night in Yosemite Valley and travelled to the South Tufa access point at Mono Lake to spend the night of the eclipse. To plan for the eclipse, here are some links that I used.

Lunar Eclipse Photo Examples and Shooting Advice:
http://www.mreclipse.com/LEphoto/LEphoto.html

Aug 28 Lunar Eclipse Phases & Times:
http://sunearth.gsfc.nasa.gov/eclipse/LEmono/TLE2007Aug28/TLE2007Aug28.html

I really liked the example of a wide angle lunar eclipse sequence in a particular setting, so I set up one camera to leave with one wide perspective, and I used another to capture zoomed shots of the moon at various phases of the eclipse.

I did a fair amount of exposure bracketing, but I had some focusing problems during the darker phases of the eclipse. In my case I had added a 2X teleconverter to my lense which forced manual focus, so I assumed that I simply wasn't focusing accurately enough. Examining the shots on my computer the next day, the stars revealed that the real culprit turned out to be the rotation of the earth. My 70-200mm lens doubled via a 2X teleconverter to 400mm is equivalent to 640mm on a 35mm camera, so in the process of magnifiying the detail of the moon I was magnifying the motion of the moon as well. With the moon 10,000 times less bright during the eclipse, about a 15 stop shift darker, and the 2X teleconverter also cutting my lens's widest aperture down 2 stops from f/4 to f/8.0, I could focus on the moon sharply at any given instant, but the exposure times were simply too long as both the moon moved and my position moved (the surface of the earth rotates at over 1000 miles/hour). As I examine the shots in more detail it'll be interesting to see at what exposure time the motion becomes too great at that level of zoom.

Update: Using the "500 Rule" to determine an approximate maximum exposure before the stars and moon start to "drag", divide 500 by the effective focal length of 640 mm and you get 500/640 = 0.78.  So any exposure time under 0.8 seconds or so will produce a photo without that apparent motion blur.

A different issue I've found related to moon shots and image stabilization is that when I bracketed I wanted to use Photomatix HDR software to combine multiple exposures to really bring out the moon's detail. Unfortunately the IS system seemed to re-acquire a new lock on the moon in between shots, which moves each shot slightly and destroys the alignment of the shots relative to each other. Normally HDR software can attempt to restore alignment across multiple shots, but the information in each shot is so different that there doesn't seem to be enough information for the software to use to perform alignment automatically. I guess I'll have to use Photoshop skills to superimpose, align, and blend multiple shots.

My biggest challenge however turned out to be one that I had anticipated: battery power. What I hadn't anticipated was shooting in yosmite all day then catching a nice sunset in the Mammoth Lakes area before heading over to Mono Lake. I started the night with neither of my cameras fully charged, and having to do a little battery shuffling and charging during the night cost me a couple of key shots from the sequence I wanted to complete. Lesson learned.

The still partially eclipsed moon set over the crest of the Sierras near 13,000 foot Mt. Dana, I enjoyed a nice sunrise at Mono Lake, then I spent another day shooting Yosemite under some nice, dramatic clouds. I started getting a little tired after 36 straight hours of photography, but what a great trip!

With clouds over Yosemite and water levels low and calm on the Merced River, I had a particularly productive time there. Here are a few of my favorite shots.

The turnout opposite Bridalveil Falls is a great place to stop right before sunset as the softening golden light of the setting sun brings out the color in the valley's granite. Bridalveil Falls and the Merced River in Yosemite Valley are at extremely low levels following a winter season of low snowfall.

I wasn't sure if the reflection was going to be strong enough, but as it turned out I really like how the rocky bottom of the river shows through in the darker areas of the reflection. Some people think that all you have to do in landscape photography si show and trigger the shutter, but in this case a circular polarizer at partial strength, a graduated neutral density filter hand-held in front, auto exposure bracketing 3 shots plus HDR processing and Photoshop color adjustment were all needed to create this result

I go to Yosemite a lot, but this was my first visit with a really wide lense. Being that deep in a valley, the extra coverage sure helps, especially if you're trying to double it the Valley's landmarks with a reflection!

I call this photo "PapaBearazzi." Fortunately this bear had plenty of ripe apples to keep him full, but at night the bears roam the campgrounds, like giant dogs, looking for dropped table scraps. I've rarely seen bears wandering around during the day in Yosemite, but on this day I saw 2, and the night before my father stepped out of his tent and almost tripped over one!