Linhof Viewfinder brand_Calypso The Manfrotto 504PLONG plate is

The Manfrotto 504PLONG plate is a common plate style for video applications

with minor surface marks and wear from normal use

even if you never use it

This Nikon C-PL1L is a drop-in circular polarizing filter for select Nikon supertelephoto lenses

even wide open

Linhof Viewfinder brand_Calypso The Manfrotto 504PLONG plate isThis Linhof viewfinder is suitable for 4x5 and 5x7 cameras, with variable fields of view from 90mm (or 120mm, for 5x7) to 360mm (or 500mm). It's adjustable for portrait or landscape shooting, too, which is handy. These viewfinders are mostly useful as a framing aid: you can use them mounted to the camera, or as a handheld "director's viewfinder. The view through the optics is satisfactory, though you'll need to refocus your eye to see the framelines