Mercury Works
Stereo Slide Mounts
Stereo Slide Mounts
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These are thick cardstock stereo slide mounts that conform to the modern standard of 13cm x 8cm (exact size 132mm x 80mm), with a large area on top to write information and grasp the mount when it is in a viewer. These are die cut, with no singed edges or odor, except for ones marked "special," which are laser cut.
We offer these in three different widths, and various heights. This gives you many options so you can select the perfect mask to match each image. We recommend that you select a wide range of options.
While every image has different needs due to framing and amount of depth, and there are many reasons to mask some of your image (composition, removing unwanted foreground elements and edge elements that appear on one side only, reducing blank sky, etc.), there are also some guidelines with regard to maximum recommended width by camera/back type:
Back/Camera | Normal Distance Subjects | Extra Close Subjects |
Mercury 65/70mm Panoramic Back V1 | 48mm wide mounts | 45mm wide mounts |
Mercury 65/70mm Panoramic Back V2 | 50mm | 48mm |
Horseman 6x12 Back- unmodified | 48mm | 45mm |
Horseman 6x12 Back- Mercury modified | 50mm | 48mm |
Da Yi back- unmodified | 48mm | 45mm |
Da Yi back- Mercury modified | 50mm | 50mm |
Mercury 65mm or 70mm Cut Film Back | 50mm | 50mm |
Grafmatic 6-shot back | 50mm | 48mm |
Techno Rollei back | 50mm | 50mm |
TL-120 camera | 50mm | 50mm |
Sputnik camera | 50mm | 50mm |
For mounting instructions, see the Mercury Stereo User Guide.
We highly recommend our "Slide Mounting Depth Gauge" for users of all experience and skill levels!
Our "Variety Packs" include 10 slide mounts in varying numbers, with more of the most popular/common and fewer of the less common.

