The Elusive Moon
This past weekend brought the sun-starved Northwest a magnificent weekend. Lot’s of sun and warm (ok, spring-like) temperatures. Hallelujah! How did I celebrate this momentous weekend? By visiting the deep winter snowpack, of course. To be more specific, I wanted to shoot sunset from Artist Point. I’ve meant to do it all winter but things just haven’t come together like this weekend. As luck would have it, a full moon would also be rising after sunset in the vicinity of Mount Shuksan. Winning!
I grabbed a friend and we made our way up to the Mount Baker Ski Area. I always have the best plans in mind when I start but good ‘ole Murphy makes an appearance. The hike from the ski area parking lot up to Artist Point takes me a little more than an hour, and another half hour to make it out to Huntoon Point. Our start time of 6:15pm didn’t bode well (sunset was at 7:50pm). At 7:10pm, we were about halfway up the last steep pitch below the Artist Point. The light was entering the “magic hour” but we clearly weren’t where we had hoped to be.
After some debate, we decided to settle down nearby so we didn’t miss any photo opportunities. While we couldn’t get a view of Mount Baker, we still had a great view of Mount Shuksan as well as the many peaks to the north and northwest. The high slopes of Mount Shuksan absorbed some nice, warm orange light before it quietly faded into the coming night. Some occasional winds chilled us to the core and I began to evaluate the second component of our evening- moonrise. Apparently I misread my moonrise app and thought moonrise was at 9:12pm (roughly an hour wait). When I checked the time again, it was 9:42pm.
Neither of us relished the idea of waiting close to 90 minutes up here for the moon to rise so we decided on Plan B. It was too dangerous to (cross county) ski back down to the parking lot so we walked out instead. My friend originally thought we should take our moonrise photos from Picture Lake buuutttt the 25 foot high snowbanks surrounding the lake convinced him otherwise. I knew of a particular turnout along the highway between the lower and upper lodge which has a nice full view of Mount Shuksan so that’s where we headed.
I stamped out a platform in the roadside snowbank and set up my camera. In addition to moonrise shots, I wanted to get a photo of the stars above the mountain so that’s what I worked on. One common technique is to take two photos, one photo taken with a high ISO to capture the stars in the sky and then a second photo at low ISO to capture your foreground of interest. The two different photos are then blended together in Photoshop to come up with your finished photo. In order to keep the stars “stationary” in your photos, the exposure times have to be no more than 20-30 seconds. The high ISO (1600 and above) and a wide open aperature of F2.8 is what makes this happen.
Provided you have a newer camera, this is the easy part! The harder part, at least for me, is determining the length of exposure for the foreground part of the photo. Using an ISO like 100 requires a lengthy exposure time to sufficiently expose the scene. I haven’t practiced night sky photography enough so I have to experiment to get things right. Many cameras have a “feature” built into them to reduce noise on long exposures. This is accomplished by taking a second photo after your first photo for the same length of time, but as a black image. The theory is that any noise becomes apparent and the camera can then subtract that from the first image taken.
The problem with long exposure noise reduction is that for a 4 minute exposure, you have to wait another 4 minutes for the black reference image to be taken. This makes it difficult to hone in a proper exposure through trial and error. Most cameras allow you to disable the noise reduction feature so this is recommended since you can do a better job using Adobe Camera Raw and third party plugins within Photoshop. I experimented for about an hour but it was clear the moon wasn’t going to crest above Mount Shuksan anytime soon due to a low trajectory. We still had close to a 3 hour drive home so we hurried to pack up and get going. After dropping off my friend, I finally got home at close to 2am.
I wasn’t all that excited at the time about the photos I shot but I changed my tune as I spent time processing them. It turned out to be a great caper on the day.
