Columbus Day at Rock Brook

The New Jersey state offices are closed for Columbus Day. I consult for the New Jersey Courts so I a holiday as well. After helping out my wife's office with some networking issues, I drove up to one of my favourite spots in Skillman. I parked at the Rock Brook along Hollow Road. I brought only my iPhone and my tripod. I have a smartphone holder clamped to the centre column of my tripod. I usually use it to hold my iPhone when I am doing long-exposures using the Trigger Trap app and dongle. But it also works nicely to keep my iPhone so that I can use as the primary camera. That's what I did. All the images below were captured on my iPhone 6 with either the native camera app, vividHDR or Slow Shutter. I imported the TIFF images to Adobe Lightroom, applied profile correction, and a Hazy Pop matte filter.

Apple iPhone 6

I was surprised by the number of leaves on the ground. The trees were still mostly green, and the air temperature was moderate, so I was surprised that many leaves had fallen from the trees. The leaves were soft, not crunchy as I had expected from how brown they were.

It was quiet as I made my way down to the water.

Apple iPhone 6

As I approached the edge of the brook, leaves and trees gave way to the multitude of rocks that provide the brook its name. There were few leaves on the ground here. Mostly grass that found a way to thrive between the stones. I could hear the water flowing nearby.

Apple iPhone 6

I imagined that in a few weeks as the cooler air and dwindling sunlight causes more leaves to change colours and fall, the rock bed will be covered in orange and red.

Apple iPhone 6

While I set up the tripod near the "falls", I saw a few frogs hopping around. This one decided to keep me company. I very carefully set the tripod up so that I could get a close. I wish I had one of those Moment zoom lenses for the iPod. It took a few tries before the frogs were comfortable with my presence and sat still long enough for me to grab a few shots.

Apple iPhone 6
Apple iPhone | Apple iPhone 6 back camera 4.15mm f/2.2 | ISO32

The "falls" is just a stack of large boulders that have formed a natural dam in the brook. The water pours over the rock, and I shot these images using the Slow Shutter app to give the water that silky smooth look you get when shooting long exposures on a DSLR.

Apple iPhone | Apple iPhone 6 back camera 4.15mm f/2.2 | ISO32
Apple iPhone | Apple iPhone 6 back camera 4.15mm f/2.2 | ISO32

While the Slow Shutter Cam captured the "falls" I looked around. I noticed this stack of rocks. I guess someone was down there before me and decided to add some artwork. I like it.

Apple iPhone 6

Rock Brook iPhone "Long Exposure” (not really)

I took the day off to relax a bit. My son Shaan came home early from school -- he has a study break for exams this week -- so I took him out for lunch at the One53 restaurant in Rocky Hill. We talked about college, school, and world history. I then persuaded him to come with me to the Rock Brook in Skillman. I wanted to test out an iPhone app I recently discovered called Slow Shutter Cam. It's for creating long exposure images.

The app creates these images, not by changing the aperture and exposure, but by cleverly combining multiple exposures using an image algorithm. The effect of long exposure is created by blending each of the captured images.

After capture, I made some quick adjustments in Photogene for iOS. The photo above was edited on my iPhone 6 with some tweaks in Adobe Photoshop Lightroom.

The Rock Brook in December

I shot these as part of one of my Arcanum Cohort assignments to level up. The Rock Brooks looks very stark in winter compared to spring.

While I wanted to try the technique of using the polarizing filter as shown in Lisa Bethany's video, I don't own a polarizing filter. But I do own a 9 stop Neutral Density (ND) filter which I've used a few times before.

I watched a lot of videos (about 30 minutes) in the Grand Library but few of the techniques were useful given my limitations of time and weather. In the future, I will need to choose my videos more wisely.

It rained most of this week and all day yesterday so the brooks and streams in my town are once again flowing with water. I revisited the Rock Brook along Hollow Road in Skillman, near the foot of the Sourland Mountain Range. A month ago the brook was dry with only a few pools of stagnant water.

I set up my tripod on the very edge of the brook and focused and composed my shot. I set the camera to aperture priority mode and set the lens aperture of the Nikkor 35mm f/1.8 lens to f/8. My Nikon D5100 has an APS-C sized sensor. It's smaller than a 35mm sized sensor which means that the FOV is smaller. The images will appear as though they are cropped. The Nikon APS-C crop factor is 1.5. That means that my 35mm at f/8 has the field of view and aperture of a 52mm (35 x 1.5) lens at f/12 (8 x 1.5).

Skillman, New Jersey, Rock Brook

I took note of the shutter speed and entered the values into an application called PhotoPils. PhotoPils helps computes the proper exposure time when using ND filters. Once I had the proper exposure computed I turned off the auto-focus on the lens, set the camera to manual, dial in the correct exposure, set my camera to use the remote-trigger, and fired off a few shots.

Camera shake is the enemy. To help reduce that I made sure to use the Live View feature on my Nikon. It looks up the mirror before exposing the sensor. This helps reduce vibration in the mirror box.

Despite having some decent sunlight it was very cold outside this morning. The air temperature was about 2ºC (~36ºF). I suffered some mild frostbite.

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