Swallow in flight over natural landscape

How a Tariff and a Missed Eagle Shot Led Me to Launch Shutter to Light

Canon R5 m2 EF 100-400mm+1.4x 1/2500 sec f/8.0, ISO1000 The missed shot with older 5D m2 1/400 s (too low) EF100-400mm f/5.6,ISO 125 I held onto my Canon 5D Mark II for over a decade. It served me well — for landscapes, the occasional portrait, and some nature shots when I felt lucky. I told […]

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The Secret Lives of Central Park’s Feral Cats: A Photo Journey

Three feral cats—two with tuxedo markings and one gray and white—are spaced along a grassy path in a natural setting at Central Park, Fremont, California. The image captures the social dynamics and stealthy behavior of community cats living in the wild. Updated May 27th, 2025: New photos and stories added! A Siamese feral cat with

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Gliding Over Gold -Sean Duan

Gliding Over Gold

Date: May 24, 2025 Location: Coyote Hills Regional Park Camera/Lens: Canon R5 Mark II + EF 100–400mm f/4.5–5.6L IS II USM + 1.4x Extender Theme: Light and Motion Caption/Reflection: Captured during golden hour bird photography at Coyote Hills, this great egret drifted past in near silence — no flapping, just pure glide. Its wings locked

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Golden Triangle Within - Sean Duan

Golden Triangle Within: Geometry and Light

The Golden Triangle pattern revealed itself unexpectedly on a quiet neighborhood sidewalk during a sunset walk. This minimalist capture highlights the interplay of light and shadow, showing how geometry can create unexpected beauty in everyday scenes. Location and Gear Neighborhood sidewalk during a sunset walkCamera/Lens: Canon R5 Mark II + EF 50mm f/1.8 Theme: Geometry

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Swallow in flight over natural landscape

About

Welcome to Shutter to Light, a personal photography journal about light and moments. I explore how shadows, reflections, and fleeting scenes come together to tell quiet stories through the lens. About Shutterpilot I’m a photographer drawn to the subtle rhythms of light, shadow, and form. My work is rooted in quiet observation—capturing the kind of

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What Huffman Coding Taught Me About Prioritizing What Matters

Image conceptualized with Sora AI. How a routine audit led me to discover a powerful lesson from Huffman coding — and how it changed the way I think about time, energy, and attention. While auditing a math problem related to weather reporting, I ran into something I didn’t fully understand. The dataset used different binary

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The Day AI Got a Tongue

The cartoon was generated using AI (ChaGPT by OpenAI) for a humorous effect. When artificial intelligence decided to get a little cheeky… literally. In the vast digital realm where algorithms usually speak in binary, something extraordinary happened: AI got a tongue. Not metaphorically, but in a whimsical, literal sense. This is the story of the

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Cactus in Rimlight

Date: May 21, 2025 Theme: Light and Shadows Location: California Light Notes: Afternoon harshlight Mood/Intention: Isolate beauty in the ordinary; a quiet celebration of natural light Post-Processing Notes: Slight contrast boost and vignette Like: The edge glow and muted background separation Improve: Might try a different angle to reduce foreground clutter Caught this cactus just

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