Opticron QR Plate 13-33mm Canon's Optical Image Stabilizer provides

Canon's Optical Image Stabilizer provides up to 4 stops of shake correction

Dynamic Range Boost*5)

which makes it perfect for portraiture as well as other applications

Check stock for matching eyepieces

Non-AI lenses have a different aperture-coupling mechanism that can damage the AI coupler on modern Nikon bodies

Opticron QR Plate 13-33mm Canon's Optical Image Stabilizer providesA replacement or additional Opticron QR (Quick Release) plate. Screws onto your spotting scope or binocular tripod adapter, allowing it to click into an Opticron QR shoe on your tripod head. Useful if you have multiple scopes and want a dedicated plate on each, so you can swap between them without unscrewing. Also serves as a spare if you lose or damage your original plate.