A star trail panorama shot at the Scala dei Turchi (literally the “staircase of the Turks”) in southern Sicily this summer. During the day this is an unusual, and unusually popular, white limestone formation, but after sunset it was very peaceful and beautiful. There can’t be much air traffic over this part of the Mediterranean at night as for once no plane lights intruded into the shot.
I’m back from what is always one of the highlights of the year – a trip with my brother hiking, photographing and viewing wildlife in the wild areas of North America. After several years seeking out bears in Alaska, this time we stayed closer to home and visited the Tetons in time for the Fall color. I’ll be posting more about the trip as time permits over the next few weeks, but for now a teaser… a storm at sunrise over the Teton range.
In one of the early issues of the magazine National Geographic Adventure (that I must have read maybe 15 years ago, before I moved to Colorado) there was a story of a hiker who’d gotten hopelessly lost in an ill-advised attempt to hike to the Gorge Lakes via the summit of Mount Ida, in Rocky Mountain National Park. The story – which ended happily with the guy getting rescued – is a reminder that, however touristy Bear Lake and Glacier Gorge may appear on a summer’s day, my local park also has its share of difficult and remote country. Hiking to Mount Ida gives a glimpse of these less trafficked wilds from a lofty perch close to 13,000 feet on the Continental Divide. Needless to say, unless you want to feature in a future magazine article, descending into Forest Canyon and the Gorge Lakes is an altogether more serious endeavor for the experienced only!.
The hike starts at Millner Pass, on the west side of Trail Ridge Road. After about a mile you break through the tree line, and the rest of the hike is a glorious ramble across the tundra, with great views out toward the west. Almost from the start Mount Ida is visible, initially as an indistinct high point along the Continental Divide.
In total it’s 4.75 miles, with a net elevation gain of 2,000 feet, from the trailhead to the summit of Mount Ida. From the top, you look straight down on to the highest of the Gorge Lakes in Forest Canyon. It’s easy to see why people want to visit them. Unfortunately getting to them via the summit of Ida is difficult (even if you don’t get lost), while getting there via the seemingly easier but trail-less route through Forest Canyon is harder still!
This hike is almost entirely above the trees, and you’d want to avoid it on a day when storms threatened. On a good weather day though, which ours was, it’s a hike I highly recommend… just under ten miles of moderate hiking with great scenery and relatively few people.
I spent my summer in Europe, with stays variously for work and pleasure in Liverpool, Kent and Cornwall in the UK, Chamonix, Sicily and Copenhagen. It will take some time to process the images, but in the meantime here’s a summer sampler…
Over the Christmas holidays the thought occurred to me that it might be fun to try shooting some wide star trail panoramas – wide enough perhaps that the stars could be seen rising on one horizon and setting over the other. A minute with google was enough to demonstrate that this was not a new idea – Vincent Brady has been shooting what he calls “planetary panoramas” with four cameras bolted to a custom rig. Nonetheless I haven’t seen that many star trail panoramas, no doubt because it requires multiple cameras and lenses, and it seemed that there might be some interesting images to be made with this technique in Colorado.
Having now tried a few it’s time to collect some tips and lessons learned. There are two parts to creating a stitched star trail image, the image capture and the post processing, and although both are pretty straightforward as always there are things to keep in mind.
The basic workflow here is (1) process individual frames for white balance and noise reduction, (2) stack left and right images independently, (3) stitch together, (4) adjust final image. This is going to involve quite a bit of destructive editing and reprojection of the image, and since you’re starting with long exposures that haven’t had the benefit of dark frame subtraction a bit of care is needed. The good news is that you’ll be ending up with a lot of pixels in the final panorama, so even if it’s not perfect at 100% a large print (never mind a version to stand tall on Facebook) can still look good.
All of the above is pretty obvious, but there are enough steps that I’ve screwed up a fair few times. Hopefully I now have the mechanical part sorted out, so the next step is to find locations where the technique makes for a good image…
Trail Ridge Road, which reaches more than 12,000 feet en route between the east and west sides of Rocky Mountain National Park, has just opened for the season (it usually opens on Memorial Day). There’s still too much snow high up for easy hiking, but I thought it would be interesting to take some photos from the road while the mountains still have their wintery appearance. With various roadworks (US36 from Lyons to Estes Park is being rebuilt this summer after last Fall’s devastating floods) I just made it to the Forest Canyon overlook (elevation 11,700 feet) in time for the sunset.
And then stayed on for an hour of shooting the stars. As usual, this is a two frame panorama of stacked 30s frames, here shot at f/8 and ISO 1600. Stopping down – which was here necessary for depth of field – has the additional benefit of substantially sharpening up the edges of the 10-22mm lens I have mounted on the Canon 7D (the Zeiss 18mm I have on the 5D3, on the other hand, is sharp even wide open). The light on the far left, behind Longs Peak, comes from Denver.
A few images of Taipei at night…
Taipei 101. Taipei is not, for the most part, a city of skyscrapers, and as a result Taipei 101 – the world’s second highest building – looms particularly impressively over the streets from many angles. I shot this from an elevated location at the end of a metro platform… not sure if that was strictly allowed but Taipei seems a fairly photographer-friendly city and no-one gave me any trouble.
Shot with the Canon 8-15mm f/4.0 fisheye zoom.
A panorama on a very wet night from the rooftop garden of the university building where I was working. Two frames, each a stack of three 30s exposures.
Back when the internet was young, and photo.net was the place to learn about photography, I saw a great fisheye image by Daniel Bayer of climbers traversing Capitol Peak’s famous knife-edge ridge. I haven’t seen many since. Fisheyes – especially the circular variety that project a full hemisphere onto a circular image – are mostly deployed for novelty effect (think comically distorted kid with nose close to the front element), or in pretty well-defined shooting situations (I’m sure we’ll see some for the opening ceremony of the World Cup). That said, I’ve always wanted to try one. As explained in this excellent article a fisheye is not merely a really wide lens but rather a completely different way of projecting the three dimensional world onto a two dimensional plane. The occasion of a work trip to Taipei prompted me to rent one (from LensRentals.com, whose service I highly recommend) and give it a try…
But not any old fisheye! Canon’s offering in this field is the rather unusual 8-15mm f/4.0L fisheye zoom, though it’s not so much of a true zoom as a lens with two usefully different focal lengths. On a full-frame camera the 8mm setting gives you the full monty fisheye look, 180 degrees vertically and horizontally. The most appropriate use I found for this in Taipei was inside the Taipei 101 skyscraper, where a 700+ ton steel ball hangs suspended at the 90th floor to damp swaying caused by typhoons and earthquakes. It’s pretty cool.
Zooming in to 15mm gives you a “full frame” fisheye effect. The weird circular aesthetic is gone and you still get a 180 degree field of view, but now only diagonally.
Fun as it was I couldn’t really find that many other subjects in Taipei where I found myself saying “damn I wish I had a fisheye lens!”. Perhaps I’m just not creative enough. Here are a few more examples of the effect at Taipei 101.
It doesn’t have to be this way. To start with you can “defish” the image in software and extract a really wide rectilinear frame, at the expense of some sharpness toward the edges. Keith Cooper has some nice architectural examples shot using this technique (scroll down to the bottom of his review), but in most cases you could probably do as well or better by stitching regular wide-angle frames. Even leaving the image as-is, the full frame fisheye effect is not nearly as obvious if you pick a subject with the horizon near center and avoid prominent verticals. Here’s an image of the Da’an park MRT station, shot at 15mm.
Bottom line: if you need a fisheye for Canon mount this one works really well. Apart from being fun to use, it’s also constructed to normal L-glass standards and, surprisingly, is neither too large or heavy. If buying rather than renting though, think carefully how much you really need the fisheye look!
Even after a decade in Colorado there are plenty of local parks and wildlife reserves that I haven’t been to. Roxborough State Park, west of Denver, turns out to be a very pleasant spot for some easy early-season hiking, with scenery reminiscent of the Garden of the Gods. There are probably some good images to be made here at sunrise.