My Diamond Sun

This photo essay traces one recurring detail across ten travel photos from six countries — the sunstar effect, the star-shaped flare created when sunlight passes a hard edge like a leaf, archway, or rooftop. The photographer first encountered the related phenomenon Diamond Fuji while researching Mount Fuji, then began noticing variations of the same light everywhere.

I first heard about Diamond Fuji while researching a trip to Mount Fuji — the moment the sun sits exactly on the peak, for about two minutes, a few days a year. I didn't manage to catch this exact timing. But I started noticing something similar everywhere after that, and began calling it my own “Diamond Sun”. What I was actually chasing has a real name: the sunstar effect — the star-shaped flare you get when sunlight squeezes past an edge, like a leaf or a rooftop. I just didn't know that yet.

Sunstar effect above the snow-capped peak of Mount Fuji, Japan

Mount Fuji, Japan

This is the photo that started it. The sun sits well above the peak here, not on it — proof I hadn't found Diamond Fuji, just something else worth chasing.

Sunstar reflected on wet salt flats with silhouetted figures, Salt Lake, Turkey

Salt Lake, Turkey

I waited for the group ahead of me to walk further out. The wet salt mirrored the rays back up, so I got the effect twice in one frame.

Sunstar through an archway at Bangunan Sultan Abdul Samad, KL

I shifted a few steps until the sun sat right at the curve of the Sultan Abdul Samad arch. Half a step either way and it disappeared completely.

Sunstar effect through tree canopy at Bukit Bintang, Kuala Lumpur, Malaysia

I tilted straight up to get this. The gaps in the leaves only lined up with the sun for a second at a time.

Sunstar breaking through the ornate roofline of Khoo Kongsi clan temple, Penang, Malaysia

Khoo Kongsi, Penang, Malaysia

At Khoo Kongsi, the gap between the roof ornament and the sky was barely wider than the sun itself. I had maybe one good frame before it moved past.

Sunstar effect through pine trees, Himachal Pradesh, India

Shot through a moving windscreen on a cold morning, which explains the extra flare spots. I didn't stop the car for this one.

Sunstar over a railway bridge and mountain valley, Okuoikojo Station Observatory, Japan

Okuoikojo Station Observatory, Shizuoka Prefecture, Japan

The cloud was doing most of the work here, not me. I just happened to be on the bridge when it broke apart enough to let the rays through.

Golden hour sunstar over the city skyline, Songdo Skywalk, Busan, South Korea

Songdo Skywalk, Busan, South Korea

Closer to sunset, the rays get longer and the light turns gold instead of white. Same effect, completely different mood.

Sunstar effect over a lake and mountain landscape with a faint plane contrail, Morocco

The plane trail wasn't planned. I only noticed it when I got home and looked at the photo properly.

Sunset sunstar glow over the hills above Chefchaouen, Morocco

Overview of Chefchaouen, Morocco

By now the sun was almost behind the mountain. The rays stretch differently this close to the horizon — wider, softer, more orange than white.

I have a name for it now. I'm still chasing it.

FAQs

What is the sunstar effect?

A star-shaped flare created when sunlight passes a hard edge or a narrow camera aperture, splitting the light into points.

Is this the same as Diamond Fuji?

No. Diamond Fuji is a specific event where the sun aligns exactly with Mount Fuji's summit for about two minutes, a few days a year. A sunstar can happen anywhere, anytime the conditions are right.

Do you need a DSLR to get this effect?

No — several of these photos work with the sun simply blocked by an edge like a leaf or rooftop, regardless of camera type.


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The Camera Stays in My Lap, Not in the Bag