E-Clypse EyeCup has been created specifically for the Leica user after rigorous design and testing by us it is not a generic eyecup that we have re-branded: the nuances of rangefinder photography bring together the individuality of the Leica photographer and the special requirements of the rangefinder, and E-Clypse EyeCup aids this synthesis.
E-Clypse EyeCup enhances the rangefinder style of photography by preventing stray light from entering the eye when looking through the viewfinder. This stray light is not only a distraction but reduces the contrast essential to the photographer during composition. The other eye remains free to take in the peripheral view and activity.
The eyecup is made of silicon rubber, which is tough, unaffected by most substances, resistant to permanent deformation, and has a very long life. The central core of E-Clypse EyeCup is precision made from high-grade, black-anodized 6061 aluminum alloy.
E-Clypse EyeCup is attached to your camera using the viewfinder thread, in exactly the same way as the viewfinder magnifier and diopter lenses manufactured by Leica itself. E-Clypse EyeCup fits Leica M cameras with an M12 × 0.5 viewfinder thread (all models from the Leica M9 back to the Leica M3).
E-Clypse EyeCup 34 and E-Clypse EyeCup 42
E-Clypse EyeCup comes with a 34 mm or 42 mm diameter circular eyecup. It works equally well whether the camera is held in portrait or landscape orientation. You can keep E-Clypse EyeCup on your camera permanently its robust design and compact shape prevent it from becoming accidentally detached or being a hindrance when your Leica M is not being used, for example when stored in your camera bag.
Michael La Grassa's M8 with E-Clypse EyeCup 34mm and an attached adjustable diopter / 1.15 Magnifier from Megapearl. Case is Luigi, with Red Bip
Engineering E-Clypse EyeCup
Designing an eyecup for the Leica M is a more complex than some might think. The Leica viewfinder offers very little surface area to work with, so we created a pinching area on the rubber eyecup that locks it securely to your camera when E-Clypse EyeCup is placed on your Leica.