Organize & Preserve 35mm Slides

For many people, childhood memories are preserved on photographic slides. While the format may be outdated, the images themselves remain valuable and worth preserving for future generations.

Plastic carousels and cardboard boxes are not enough to protect them. Exposure to light, dust, and fingerprints can cause permanent damage. With the right approach, you can preserve your slides and keep them accessible for years to come.

Assess Your Collection

Before you purchase any supplies, you need to know what you have. Gather all your slides and make notes on the following.​​​​​​

• How many slides are in your collection? 
• What condition are they in? Are they damaged or dusty? 
• Are they organized in a meaningful way?
• Do any of the images exist in another format, such as prints?

Tips for Handling Slides

Careful handling helps prevent damage during any stage of preserving your slides.

• Always work on a clean, uncluttered surface
• Consider wearing antistatic gloves to reduce dust and fingerprints
• Handle the slides only by the mount
• Limit exposure to light as much as possible

Viewing Your Slides

There are several ways to safely view your slides without a projector.

• Use a magnifying loupe or a lightbox for direct viewing
• Use a smartphone app to scan and enlarge images for easier viewing and sharing.

Digital backup & prints

Digitizing your slides is one of the most important preservation steps. 

You can scan slides yourself using a slide scanner or with a professional digitization service. If your images only exist as slides, creating a digital backup is essential to prevent permanent loss.

Storage & preservation

Once your collection is assessed, choose storage materials designed for long-term preservation.

Any material that comes into direct contact with your slides should pass the Photographic Activity Test (P.A.T.), ensuring it will not cause chemical damage over time.

Collection Size & Access Frequency

Your storage approach should reflect both the size of your collection and how often you plan to access it.

• For smaller or frequently accessed collections, use slide pages stored in an enclosed album to protect against light exposure.
• For larger collections, consider a slide storage system with internal boxes for organization and an outer enclosure for added protection.

Storage​​​​​​​

Store your slides in a cool, dry, and dark environment.

Avoid areas with fluctuating temperature or humidity, such as attics or basements, as these conditions can accelerate deterioration.