November is a special time for the ranges and basins of southern Arizona deserts. Climb a bajada of foothills, face west and wait for the sunset. That is what I did this day, November 3, 2005. East of Tucson the Saguaro National Monument at the foot of the Rincon Mountain Wilderness is where I parked, unpacked the photo gear and climbed the side of the Tanque Verde Ridge for a favorable view. Weather was pushing high level moisture from the west, clouds were developing.
You see here a shot from that session. In the distance, looking across Tanque Verde, are the Santa Catalina mountains. Months since the last rainfall, the giant Saguaros are using internal moisture reserves drawn up from a shallow root system, the flesh is less plump, the supporting structure of the ribs, always evident, are more pronounced. The last light catches these ribs in relief against a dramatic sky.
November is a special time for the ranges and basins of southern Arizona deserts. Climb a bajada of foothills, face west and wait for the sunset. That is what I did this day, November 3, 2005. East of Tucson the Saguaro National Monument at the foot of the Rincon Mountain Wilderness is where I parked, unpacked the photo gear and climbed the side of the Tanque Verde Ridge for a favorable view. Weather was pushing high level moisture from the west, clouds were developing.
You see here a shot from that session. In the distance, looking across Tanque Verde, are the Santa Catalina mountains. Months since the last rainfall, the giant Saguaros are using internal moisture reserves drawn up from a shallow root system, the flesh is less plump, the supporting structure of the ribs, always evident, are more pronounced. The last light catches these ribs in relief against a dramatic sky.
On this spring equinox morning a huge sun, filtered by morning clouds, hangs over East Hill and Cornell University. Taken from our home on West Hill, looking across the valley and Ithaca, New York.
The temperature is a balmy 18 degrees F.
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Can you pick out these Cornell landmarks? — Jenny McGraw Tower — Lib Slope still covered in snow from last week’s storm. — the looming fortress shape of Bradford Hall.
Copyright 2021 All Rights Reserved Michael Stephen Wills
November is a special time for the ranges and basins of southern Arizona deserts. Climb a bajada of foothills, face west and wait for the sunset. That is what I did this day, November 3, 2005. East of Tucson the Saguaro National Monument at the foot of the Rincon Mountain Wilderness is where I parked, unpacked the photo gear and climbed the side of the Tanque Verde Ridge for a favorable view. Weather was pushing high level moisture from the west, clouds were developing.
You see here a shot from that session. In the distance, looking across Tanque Verde, are the Santa Catalina mountains. Months since the last rainfall, the giant Saguaros are using internal moisture reserves drawn up from a shallow root system, the flesh is less plump, the supporting structure of the ribs, always evident, are more pronounced. The last light catches these ribs in relief against a dramatic sky.
Layers of red rock, lit here by sunset on Giant’s Causeway, along the cliff trail, seen here from below, are called laterite from the Latin for brick (later). Here it is formed from iron rich basalt laid down well before the upper layers of the magma plateau. It takes eons to weather and oxidize the iron of basalt, transforming it to the brick red of laterite, yet the rocks above it are still dark. The process happens in warmer climates with alternating cycles of rain and drought, for Ireland this was when the land was much farther south than today. Giant’s Causeway, County Antrim, Northern Ireland.
Here it is formed from iron rich basalt laid down well before the upper layers of the magma plateau. It takes eons to weather and oxidize the iron of basalt, transforming it to the brick red of laterite, yet the rocks above it are still dark. The process happens in warmer climates with alternating cycles of rain and drought, for Ireland this was when the land was much farther south than today.
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Lava dikes rise from the water below. Here is a wider view with the “causeway” elements with human figures in foreground.
Copyright 2020 All Rights Reserved Michael Stephen Wills
Athumb’s width span for each unfurling stalk of this unidentified colony. Fern? Flowering plant?
Each image is from a Canon 100 mm macro lens, camera mounted on a sturdy studio tripod I carried a few hundred feet to this bank within Fillmore Glen New York State park.
Here is another assignment from the “Fundamentals of Photography” course, to capture a scene at different f-stops, the degree to which the diaphragm is open, to control the width of the lens aperture. Increasing f-stop narrows lens aperture.
For this f32 image, the least possible apeture for this lens, resulting in maximum depth of field. Everything in view is in focus, increasing the visual elements competing for the viewer’s attention. On the other hand, a distracting element is more information about where the plant is thriving.
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f32
At 8 f-stop aperture is at a midpoint, elements of the background are out of focus, though still recognizable. The sturdy tripod, well situated, enables me to take the exact same view, changing only the f-stop (and associated shutter speed, the higher the f-stop the slower the shutter speed. As the aperture decreases, less light enters the camera and more time is required to collect enough light to expose the digital media. Slower shutter speed means more time for spring breezes to move the delicately balanced plant stalk, resulting a blur for a subject otherwise in focus.
In this image I removed all but the immediate surroundings of the red stalks.
f8
At f2.8 the diaphram is wide open, a maximum amount of light enters the camera and shutter speed is higher as well. Less of the image is in focus, a single subject is in sharp relief. Prior to cropping more than one stalk is in focus, competing for attention.
f2.8
After cropping a single stalk is the image subject, reminding me of swirling galaxies. The drawback is reduction in image size: 30 reduced to 1.3 (6,744 to 1,371). I needed to reposition the tripod and camera for a closer shot of the circinate scene elements and a image with a higher resolution of this fascinating episode in the life of a plant. I am tempted to visit Malloryville where large ferns unfurl.
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