About Light Leaks

What Are Light Leaks in Film Photography?

A guide to understanding the streaks, flares, and happy (or sometimes not-so-happy) accidents in your photos.

At 8storeytree, we love the unpredictable magic of film. But every once in a while, you might find strange streaks, bright spots, or hazy patches on your images that weren’t part of your creative plan. These are likely light leaks—and if you're new to film photography, they can be confusing. We've a blog to identify these from your negatives here.

So what exactly causes light leaks? And are they always bad? Let’s dive in.

 

 

What Are Light Leaks?

Light leaks occur when stray light enters the camera or film canister and unintentionally exposes the film. This creates patterns—usually streaks, flares, or foggy areas—that show up on your photos. Some people love the dreamy, nostalgic look light leaks can add. Others see them as flaws. It all depends on your creative intent.

 

Common Causes of Light Leaks

1. Aging Light Seals

Older film cameras use foam or felt around the film door to block light. Over time, these material will deteriorate, especially in humid climates like Singapore. Once compromised, they let in light where it shouldn’t be. 

2. Loose or Improperly Closed Camera Backs

If the film door doesn’t close tightly or isn’t latched properly, light can sneak in during shoots or storage.

3. Opening the Film Door Mid-Roll

This one’s a classic mistake—opening the camera back before rewinding the film. Just a milli-second of exposure can cause damage to multiple frames.

4. Respooled or Hand-Rolled Film

This includes some of the specialty films we stock at 8storeytree—such as respooled 35mm motion picture films (movie reels) like Kodak Vision3, or other experimental stocks. These are hand-loaded into reusable 35mm canisters, which may not have the same light-tight seals as factory-sealed film. A little care in handling goes a long way.

 

Why Light Leaks Happen More Often With Respooled Movie Film

We’re proud to carry a unique selection of respooled movie reel film here at 8storeytree. These films, originally designed for cinema cameras, are creatively respooled and repurposed for 35mm still photography.

But because most of them are manually reloaded into recycled canisters and plastic canisters, the risk of light leaks goes up—especially if:

• The film canister isn’t loaded in subdued light.
  

• The user pulls out too much film leader.

This doesn’t mean you shouldn’t shoot them—far from it! In fact, these films often deliver stunning results with cinematic tones and wide latitude. Just be mindful during loading/unloading, and you’ll minimise surprises.

*Cinestill films manufacturing process is entirely different, and we have yet had any of these light leaks 'issues' on them. ❤

 

Tips to Prevent Unwanted Light Leaks

• Store film rolls properly: Keep them in their plastic containers or a film pouch when not in use.

• Avoid opening the camera back mid-roll.

• Rewind your film fully before removing it.

• Use a camera with good seals, or have them replaced if they’re worn out.

• Handle respooled or bulk film in low light, and avoid exposing the film leader to harsh sunlight.

When Light Leaks Become Art

Not all light leaks are bad! Some photographers intentionally use faulty cameras or modify their gear to introduce light leaks for a vintage or dreamlike aesthetic. There’s a whole niche of film lovers who embrace these “flaws” as part of the analog charm.

 

Explore Our Collection

At 8storeytree, we offer a curated range of specialty films—including respooled motion picture stocks that give your photos a cinematic look. A few customer favourites include:

• 🎞️ Kodak Vision3 250D / 500T – Beautiful color balance and fine grain

• 🌙 CineStill 800T – Motion picture film

• ✂️ Hand-rolled experimental film – Unique emulsions and surprise results

Just remember: these films are full of character, and sometimes, a little unpredictability.