No filter thread on cine lenses?

[Raymond Zrike]

Even though I’ve rented cine lenses (mostly CP.2) in the past and have used others on set, I’ve always owned only still/photos lenses. I’ve always put UV filters (specifically B+W brand) on every lens I have—makes me less nervous about cleaning the glass in the case of a smudge or dust, and if it gets scratched up, it’s easily replaced. Also, I’ve read that UV filters help when shooting film, even though I’ve never noticed a difference with digital (convo for another day). But I’ve just brought two super 16 Zeiss super speed Mk. II which I don’t think have front threads. The fronts have 80mm diameters. Are cine lenses always left bare? Is there any way to protect them besides the lens cap? I like to shoot out in the world (i.e. encountering elements occasionally), so is a matte box the only solution?

[Uli Meyer]

Yep, a matte box with an optical glass filter.

[Raymond Zrike]

Alright, that’s what I figured. I guess my budget matte box search will commence. Thanks for the confirmation of my suspicions.