SUPON For Leica M 37mm 37 mm metal tilted vented Lens Hood Shade + Lens cap Metal lens shade for all Leica 37mm filter thread lenses, will screw into your lens, or filter. Solid metal construction, with flat black interior to prevent reflections. If you would like some measure of protection for your Leica lenses and are not willing to pay the exorbitant prices for the original equipment, here is your chance! Can be used even with the telephoto lenses -mainly to protect the filter mount from dings and scratches if you are not using an original Leica lens shade.