These mounted slides are an alternative choice for use in Kodak carousel slide projectors using 80 slide magazines or gobo projectors.
NOTE: This will not fit SUCK UK slide lights or many modern slide projectors which require slimmer 2mm mounts. The 2mm glass slides are no longer in production.
The 35mm photographic slides are supplied mounted in 3mm premium type 2004 GePe glass/plastic AN slide mounts. These excellent mounts show the full image area of your image (cheaper mounts hide a lot of the image area to make mounting easier). The glass protects the film from damage if slides are handled frequently and can reduce ‘popping’ out of focus in projectors without autofocus, such as gobo projectors.
Note that delivery cost is high on these slides due to the bulk of packaging and they will not fit through standard letter boxes.
In most cases your first choice would be the cheaper plastic mounted slides and you need a good reason to opt for glass mounts – see this page for a full explanation of mount types and applications Slide mounts