Posts Tagged ‘IR’

Glacier National Park Beyond 830nm

It’s a long way from anywhere to Glacier National Park.  From Salt Lake City to Apgar, MT, it is about 650 miles, 11 hours travel time.  It’s about the same story to go from Portland to Apgar.  The distance is a bit shorter from Seattle to Apgar, about 550 miles, which can be done in about 9 hours.  Denver to Apgar is 970 miles, which will take about 15 hours.  Like I said, a long way from anywhere.  The good news is (obviously) that the long distances from large metro areas keeps the number of visitors down, but make no mistake, it can get remarkably crowded at times.

Naturally, once you get to the Park, you want to maximize the experience.  For the photographer-expeditionary, this means getting up at dawn and not quitting until after the sunset.  For many though, there is a big gap from about 11am until about 4 or 5 in the afternoon.  Some (slackers) use this time for siesta, others use the time to get into position for the afteroon or sunset.  In my view the very best way to spend the noonish hours is to keep right on shooting.

One way to extend time behind the lens will be to to push conventional photography beyond conventional (golden hour) time limits.  I’ve written a bit about the myth of the golden hour from time to time.  If you are willing to invest the time it takes to properly process such images, this can be an effective approach.  Under the right conidtions and with the proper gear, a most excellent option is to shoot in the near infrared (near-IR).  The best way, and in my opinion the only reasonable way to shoot the near-IR is to get hold of a DSLR camera in which has the anti-aliasing filter replaced by a near-IR cutoff filter.  There are several groups that will do this – I have used and can recommend LifePixel out of Mukilteo, WA.  Folks seem to like the mods done by LDP LLC aka MaxMax as well.  Anyway, I had a Nikon D200 modified to the Life-Pixel Deep BW IR option, which is equivalent in the old-tongue to a Wratten 830nm filter set up.  The Deep BW IR provides the richest, deepest tones available in an IR modification.

Quality near-IR capture requires the presence of direct sunlight overhead.  Clouds on the horizon add essential drama to these shots, and without clouds the sky goes nearly to black.  Of course given the right sort of foreground elements, e.g., foliage, this can work well.  If clouds block the sun overhead however, the resulting image will lack the contrast that one is generally hoping for in the capture.

The first four images in this entry were recorded on at around 14:00 MDT on July 23, 2011 using the Nikon D200IR and the AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR at f/11 or f/16.  I generally like to shoot a bit closer to noon to get the most intense contrast, but things seemed to work out well here.

Although light is metered through the lens in an IR-modified camera, the meter is measuring the visible light intensity, whereas with the 830nm cutoff we are looking at something else.  Fortunately, the intensity of the near-IR light is proportional to the visible, and simply requires that you dial extra exposure to compensate (about +3.0 EV in my case).  In practice I bracket the exposure +/- 1.0 EV in 1/3 f-stop increments.

The subject of the first three images was Saint Mary Lake, while the forth image (above) was made near Lake Sherburne.

The images above as well as the following two images were made at about 11:00 MDT on July 24, 2011, near Logan Pass.  No clouds, but plenty of dramatic contrast.

 The image below was recorded at noon on July 24, 2011, at Sun Point near the western edge of Saint Mary Lake.

The final two images were recorded along the shore of Lake Sherburne at around 13:30 MDT.

Images were converted using ACR version 6.5 or 6.6 to set WB and exposure.  The bulk of the processing was conducted using Nik Silver Efex Pro 2, based on a variation of the High Structure – Harsh preset.  Additional processing was applied using Color Efex Pro 4.  Capture, creative, and output sharpening was applied using Photokit Sharpener 2.0

Did you catch the HP in the first image?  Yep, look again.

A Google Earth image of Saint Mary Lake, with Sun Point just about in the center of the viewport is shown below:

Copyright 2012 Peter F. Flynn.  No usage permitted without prior written consent. All rights reserved.

The 25th Anniversary Tour

Coyote Butte North in the IR

Yeah, so it’s 25 years for the scruffy dude and the princess…  At some point you might just assume that you found the right person (or they found you), but it would not be a good idea to take it too lightly.  Here’s the acid test…  In the discussion of the location of the celebratory tour, I made the following suggestions – Alaska, Cairo (okay, maybe I threw that one in for myself), Hawaii, Polynesia, Paris & Rome.  Where duyawanna go?  ‘Somewhere south’, sez the HP.  ‘Eh?’  ‘Hawaii then?’, sez me.  ‘No, just somewhere nice in southern Utah’.  Yep, I married up with the right gal.

The Road to The Wave

We decided to visit the Arizona Strip; which is the lovely region along Highway 89 between Kanab, UT and Page, AZ.  The HP booked a couple of nights in Kanab and we were on our way.  On August 25 – the official anniversary date – we slept in a little and then made a leisurely drive to the Wire Pass Trailhead.  By the time we got going it was near noon – the perfect time of day for IR photography.  The series of images in this entry were recorded on our exploratory hike to check out the route to the Wave (covered in a future entry).  Whether or not you have a permit to entry The Wave proper, I can certainly recommend the hike – a uniquely spectacular route over sandstone ramps with only a little sand.

The TeepeesThe formation lying along the horizon in the image above is known simply as The Teepees.  They are outside of the special permit zones and may be visited at will.  The characteristic pyramidal shape of The Teepees  is typical of the Coyote Buttes geology.

I don’t usually include people in IR images, but shot the image below anyway, thinking that the HP was looking particularly lovely in the near-IR.  I was quite right, and I’m certain you’ll agree.

The HP is in the Buttes!The images in this post were recorded at around noon on August 15, 2009, using a Nikon D200 converted to IR capture – see the March 6, 2009 entry for more details.

Mesa Arch

Mesa Arch is located in the Island in the Sky district of Canyonlands NP.  The arch is accessible via a short, relatively flat 0.5 mile hike from the parking lot adjacent to SR313.  The parking lot is near the junction of roads leading northwest to Upheavel Dome and south towards Grand View Point Overlook, about ten miles inside the park on SR313.  Mesa Arch is easily one of the most photographed natural arches in the world.  Based on our three or four visits to the arch, I’d estimate that your mean time alone here is perhaps two minutes – no kidding.  If you want to photograph Mesa Arch without also including your fellow beings (who are posing for their own photos), you have to be patient and act fast.  The classic image is of the arch at dawn, with light streaming in from underneath.  There are hundreds of virtually identical images posted on the web.  All quite serviceable, but nevertheless subtle variations on a single theme.  Unlike the many relatively smooth forms found in Arches NP, Mesa Arch has a distinctly rough surface, and this is what I wanted to emphasize in this set of images.

Mesa ArchThe IR image above, looking west through the arch to the La Sal Mountains and Shafer Basin was recorded on February 15, 2009 at around 15:00 MST using the Nikon D200IR (see the March 6, 2009 entry for details) and the AF-S  DX Zoom NIKKOR 12-24mm f/4 IF-ED lens at 18mm.  Exposure was f/16 at 1/20s, ISO 100.

The arch is perched on the edge of the mesa, overlooking Buck Canyon about 1000 feet below.  As I’ve mentioned in a previous entry, if arches earned their name from their function, this one would be named ‘walked-on arch’.

Mesa ArchThe image above; looking west-southwest, was recorded using the Nikon D200IR and the AF-S  DX Zoom NIKKOR 12-24mm f/4 IF-ED lens at 12mm.  Exposure was f/16 at 1/25s, ISO 100.  The image below is identical the one shown above, apart from application of a coffee tone.  Toning was applied using Nik Silver Efex Pro.  I am partial to the coffee-toned image, but wonder whether it might be over-the-top.  Comments appreciated.

Mesa Arch