Front lens cap for Hasselblad V-system lenses with the Bay 50 (B50) front bayonet - a replacement for the original twist-on cap no. 50369. - Fits: lenses with the B50 (Bay 50) front bayonet, the fitting of the original cap 50369 - for example older Zeiss C / C T* lenses for Hasselblad such as the Planar 80 mm f/2.8 C. Please check that your lens takes B50 (Bay 50) filters and shades before ordering. It does not fit Bay 60 (B60) or Bay 70 lenses (CF and later lenses). - How it fits: like the original grey C-series cap, it locks onto the outer B50 bayonet of the lens. Line it up, press it onto the front of the lens and twist until it stops; twist back to remove. - It cannot be fitted over a B50 filter or with the lens shade attached (they use the same outer bayonet) - remove them first. - Design: three bayonet lugs inside; outside a broad-fluted grip, a flat front with two turned rings, and a recessed inner face that keeps clear of the front element. - Material and colour: PETG, black. 3D printed; fine layer lines are visible on the surface. - Size: approx. 67.3 mm diameter x 8.6 mm (2.65 x 0.34 in). - Pack: 1 front lens cap. Lens not included. - Rendered images are computer graphics, not photos. Aftermarket part, not made by or affiliated with Hasselblad or Zeiss.