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Sunrise at Mobius Arch, Alabama Hills, CA Sunrise at Mobius Arch, Alabama Hills, CA
 

What should an outdoor photographer photograph in the winter? Rocks keep their same great appearance year-round, making them a great option.

Sunrise at Mobius Arch in the Alabama Hills was at the top of my subject list for a recent California landscape photography trip. With weather being unpredictable, three mornings were allocated on the schedule to check off this line item.

A scouting run the evening before set up the first-morning shoot, ensuring that I wouldn't get lost in the dark. Some images featuring a cool sunburst within the arch made the scouting time especially productive.

On the morning, the sky was clear. A clear sky can usually be counted on to produce a nice alpenglow on the highest peaks, and Lone Pine Peak lit up nicely under the arch this morning. The blue sky provided an attractive, undistracting background for the arch, and as the sun rose higher and the alpenglow faded, the entire snow-capped mountain glowed nicely within the frame of the arch. Eventually, the entire arch was in direct morning sunlight for another pleasing variation.

Overall, day 1 was good, but the forecast for day 2 included 40% cloud cover. The higher the cloud cover percentage, the lower the chances of the sunrise light making it to the western sky. That means lower chances of good sky color and reduced potential of the alpenglow lighting.

However, the higher the cloud cover percentage, the greater the potential for sky drama when the light makes it through. Overall, a 30-60% cloud cover forecast is optimal for high odds of a colorful sunrise (or sunset). So, the day 1 plan was repeated on day 2, anticipating the potential for a color other than blue in the sky.

As seen here, the results of that decision proved quite nice. Intriguing is that all of the work of a good morning can be relegated to the archives when a better image capture comes along.

For this composition, the strategy was to move away from the arch as far as possible make the distant Lone Pine Mountain peak appear large relative to the arch framing it. However, this goal was limited by a relatively small area of rock to work from. A Canon EOS R5 and RF 24-70mm F2.8 L IS USM Lens were mounted to a Really Right Stuff BH-40 Ball Head on a TVC-24L Mk2Tripod. The tripod legs were spread outward, straddling a large crevice between boulders. With a 10 or 12' (3 or 4m) drop-off immediately behind the tripod, aligning the frame was somewhat challenging, and determining the perfect focus distance to keep everything in the frame sharp at 31mm was more so.

Trial and error prior to sunrise dialed in the first challenge, and the R5's focus bracketing set to the lowest distance adjustment between shots provided a completely sharp image every time the shutter release was pressed. When longer focal lengths resulted in an insufficient depth of field, the multiple images in the stack ensured that all features, from nearest to farthest, were in sharp in at least one of the frames, with the depth compositing tool in DPP standing ready to merge those results.

While I may not get around to sharing any images from the first morning at this location, day 3 resulted in variation that I'll likely share soon.


 
31mm  f/10.0  0.5s  ISO 100
Low-Level Lighting Mobius Arch, Milky Way at Alabama Hills, CA Low-Level Lighting Mobius Arch, Milky Way at Alabama Hills, CA
 

Photographing the Milky Way behind Mobius Arch in the Alabama Hills near Lone Pine, CA seemed like a worthy challenge. The arch and other rocks nearby are compositionally complementary to the always awesome Milky Way. Some lighting seemed the optimal method for making the foreground subjects visible in the image, and this time, low-level (low intensity) lighting was the strategy implemented.

Low-level lighting involves setting up continuous lights on the foreground. The requirements for these lights include:

A quality spectrum output is paramount. Just as you care that the entire light spectrum is evenly transmitted through your lens, you care that the full spectrum of light is provided in the first place. Correcting light spectrum issues during post-processing can be a huge, time-consuming challenge, especially if the entire image does not share the same deficiency (such as the sky). Look for lights with a CRI specification of 95 or higher.

While having the entire visible light spectrum equally provided is important, additionally helpful is the ability to continuously adjust the light's color temperature output, enabling emphasis of the foreground feature's color and matching the desired night sky color temperature — try 4000-4500k. Especially important is having warm settings available. Look for lights providing minimally 3200k, and lower is better.

Most night sky photography involving foreground lighting is not done in the back yard. Thus transportation and, often, hiking are involved. Especially when using multiple lights, compactness is a desired trait.

Yes, reducing the size of the light causes the lighting to be harsher, producing a sharper transition into shadows. However, the size of night sky foreground subjects is usually quite large, and the lights are typically placed at a distance from the features, making the size difference between portable lights typically irrelevant.

Compactness means less storage space is required.

Compact lights usually feature light weight, also a feature desired for transport.

Another important low-level lighting feature is continuously adjustable brightness. Light intensity falls off at an inverse-squared (very fast) rate, so the intensity required for one situation can be vastly different from another. For example, the light behind the arch in this image was much closer than the light illuminating the entire scene. Look for a light that provides 1-100% intensity adjustment control in small increments (1% is ideal).

I saved a key requirement for last. Unless lighting distant mountains, the light output needs to be extremely dim.

No manufacturers are saying, "Let's see how dim of a light we can make", and nearly everyone wants their lights to be as bright as possible. Indeed, brighter is better for most photography and videography lighting applications. Ask lighting experts for the dimmest light recommendation, and their eyes glaze over.

However, the night sky is dark, and extremely dim light is required to balance the foreground with the night sky. We are talking about quarter moon phase light levels.

I took three Luxli Viola² 5" On-Camera RGBAW LED Lights for this trip. Aside from meeting the just-shared requirements, the battery is powerful and removable, permitting the lights to be checked on a flight. In addition, a Bluetooth controller app enables the lights to be controlled remotely, an especially helpful option when working in challenging areas in the dark.

While the Viola lights are not the lowest wattage lights, they dim to a much lower intensity than the considerably lower wattage lights I've tried, even at their 1% settings (making me question the accuracy of the 1% setting indication). The Violas use the common NP-F550 Lithium-Ion battery pack. This battery is not tiny relative to the light, but it is long-lasting (especially at 1% lighting levels) and readily available.

On this morning, I carried all of the requisite gear to the location — at 2:30 AM. This time of the day, along with strong wind and low temperature, resulted in complete solitude.

Because of the uneven, rocky scenario behind the arch, the plan was to set up the accent light on Robus Monopod supported by a compact Robus SBM-001 Stabilizing Base. That plan seemed great until I returned to the camera position and heard the distinct sound of a Viola light hitting rock.

Remember that wind factor I mentioned? There was not enough base surface area to prevent the light from blowing over. At that time of the night, it took two such occurrences to prove to me that this light stand was insufficient for the conditions.

A true light stand is a inexpensive, lightweight option for positioning low level lights. After all, holding lights is what they are designed for. However, these need a flat surface (or a weight) to prevent them from tipping over.

Tripods provide significantly more flexibility and stability, and there were two tripods in the MindShift Gear BackLight Elite 45L. Hoped for was that I could shoot with two cameras simultaneously, but the reality was that the Really Right Stuff Ascend-14 Long Travel Carbon Fiber Tripod had to take on the light stand role.

Did I tell you about the wind? While hearing the light hit the rocks twice was painful, hearing the new RRS Ascend-14 go down into the rocks provided that sick feeling you've likely experienced at some point in life. But, unwavering to the challenge (and better educated), I improved the Ascend-14 setup, and there were no more blow-downs.

Noteable is that the Viola light suffered only a scratched plastic housing after falling approximately 4' into the rocks three times.

A second light was positioned on a rock far off to the camera left to provide broad foreground lighting.

The next challenge was getting the lights dim enough for the scene. Even at 1% brightness, the Violas required flagging of much (75%?) of their face. While the flagging requirement left this equipment project incomplete, a high-quality, workable solution was in hand.

I enjoyed photographing the Milky Way until the sky became bright enough to hide the stars.

What is the best neutral density filter for night photography? That is a question you have not likely asked before. However, the 1% light output was too bright, and this project was continued upon my return to the studio. Some of the light had to be blocked.

The Viola lights are not the smallest available models, and if the light requires dimming, why not select a smaller, lighter light to work with? Since I was going to block light, perhaps I could block the extra light coming from more compact LED lights.

The second round of research resulted in a few Simorr Vibe P96L RGB Video LED Lights joining the kit. That the Simorr P96L light specs are solid, and their cost is considerably less than the Violas, are positive aspects.

The Simorr batteries are integrated, meaning the light must be carried onto a plane and that a fresh battery cannot be inserted in the field. However, these lights are so small that they require little space in the first place. The battery drain at 1% is low, and a second light costs only a bit more than a spare NP-F550.

Back to the dimming problem. Neutral density filters are designed to block light, and that is the need being addressed.

You care about the spectrum color neutrality of your lens, and we just discussed the need for your light, but the spectrum color neutrality of your neutral density filter is just as important — and perhaps a bigger challenge to overcome. Color deficiencies can be accounted for during post-processing, but accurately fixing the deficiency requires high-level post-processing skills, along with an image of a standard ColorChecker or similar captured in the same lighting. When the spectrum deficiency is not identical throughout the image (the LED light will not affect the sky color), the color correction skill level requirement increases significantly.

The next phase of this project was to order a Lee Filters Zircon Dark Density 24x24" Gel Filter Sheet. Simply cut the inexpensive gel filter into LED light-sized pieces, and tape them on the lights as needed. Right? That plan seemed ideal until the strong red color cast in the test images immediately disqualified this solution.

Knowing that many threaded neutral density filters have the same problem and that there was a resolution, I gaffer taped a Breakthrough Photography neutral density filter, known to be free of color cast, over the Simorr light. The result was perfect.

While carrying a range of round ND filters in the night photography kit to tape on rectangular LED lights is not optimal, this is the best solution I've found so far. Breakthrough's 100mm square neutral density filters align nicely with the size of the larger Viola lights, but they are an expensive addition to a kit not otherwise using them.

Back to the low-level nightscape lighting strategy. Surely, you have heard of light painting. So here are the low-level lighting advantages over light painting.

What are the Low-Level Lighting Advantages Over Light Painting?

  • Once set up, low-level lights provide shot-to-shot consistency that also facilitates timelapse recording.
  • Less skill is required. Light painting is an art — don't underestimate the skill level required to create even lighting.
  • Many photographers can share a single light setup, regardless of their max available aperture and other camera settings.
  • Low-level lighting preserves night vision.
  • It is easier to light from multiple locations simultaneously without tripping over rocks in the dark to get from one to the other during the exposure time.
  • Low-level lighting does not intrude upon other photographers or those otherwise enjoying the night.
  • Multiple cameras can be operated simultaneously by a single photographer, and long exposures facilitate such.

What are the Light Painting Advantages Over Low-Level Lighting?

  • Provides entertainment and challenge during long exposures.
  • Raises anticipation — brings back the film days excitement of never being certain what the image would look like.
  • Provides a greater variety of lighting in the result set — and a higher failure rate.
  • There is no setup.

Reviewing the Lights:

What are the Low-Level LED Light Requirements?

  • High-quality spectrum output (CRI 95 or higher)
  • Continuously adjustable color temperature output, with 3200k or lower available
  • Continuously adjustable brightness, including extremely dim
  • Compact size, light weight
  • Probably: a method of further dimming the light — flagging or filtering

As shared, the Simorr Vibe P96L RGB Video LED Lights and Luxli Viola² 5" On-Camera RGBAW LED Lights are good options.


 
24mm  f/1.4  13s  ISO 6400
In a Crevice, Focus Bracketed Panorama, Lathe Arch, Alabama Hills In a Crevice, Focus Bracketed Panorama, Lathe Arch, Alabama Hills
 

When other serious photographers are photographing you instead of the amazing scene in your viewfinder, your sanity feels questioned.

Despite appearing big in this image, Lathe Arch is relatively small. Making it appear large in the frame requires getting close to it relative to the background. Getting close from the best side of this arch offers very few options, and gaining this vantage point required getting into a small opening between the large, abrasive granite rocks.

The tripod legs were spread straight out, straddling the crevice, and I was thankful for sturdy boots that were not crushing my feet despite being wedged between the rocks. I was mostly hidden from people walking by but was apparently photo-worthy to a couple of photographers that noticed me.

The widest focal length available on the mounted lens was 15mm, and that angle of view was not nearly wide enough to capture the entire arch and the supporting rocks beside it. Thus, a panorama was called for.

I suspected that this scenario was coming and often have a Really Right Stuff MPR-CL Rail with Integral Clamp in the bag. The rail mounted on the vertical side of the L-plate allowed the lens to pivot over its nodal point, ensuring that the foreground details aligned when stitched together. While nodal alignment is not essential when the foreground is distant, this foreground was very close.

There was a lot of blue sky above the arch, but much of that was framed (and cropped) out of this image. The 22mm focal length provided a sufficient vertical angle of view. The finished horizontal angle of view was determined by the sum of the camera angles used for the pano.

The next issue to resolve was the inadequate depth of field. The closest foreground rock was immediately in front of the lens, while Lone Peak and the mountains beside it were far away. This scenario calls for focus bracketing, an easy strategy with the Canon EOS R5.

I considered adding HDR bracketing to the already complicated capture and processing but didn't — and didn't regret that decision. The R5's dynamic range easily handled this scene.

After dialing in a manual exposure that barely avoided red channel overexposure, the camera was rotated to the left-most side of the capture, autofocus was acquired on the nearest point of the rock, and the set of focus bracketed images was captured. The ball head base was not close to level, so the panning base could not be used for the lateral movement. The ball was loosened, and the camera moved using the thirds gridline to locate the next position. Moving the bottom-left thirds gridline intersection to the former position of the bottom-right thirds line intersection provided a considerable 2/3 frame overlap between image sets, with the electronic level ensuring the camera remained level.

A 1/3 overlap is usually adequate, so moving the bottom-left thirds gridline intersection to the former position of the bottom-right line leaving the frame would have been more efficient.

Additional sets of images were captured until the complete width of the pano was finished. The result was five images per focus stack and four focus-stacked image sets for the panorama.

Creation of the final image involved processing the stacks and then creating the panorama from the four stacked images. While this process may sound complicated, it was simple. The computer did all of the work.

Capturing this image was high on the awkwardness scale, but as usual, I barely remember the discomfort, and the image will bring back the great memories of this morning long into the future.


 
22mm  f/11.0  1/8s  ISO 100
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