[Features] · A holder for holding square and round filters. · Can be fitted with up to four filters with external diameters of ø50 mm. · Filters are fixed by inserting them from the top whereupon the leaf spring will push them against the reference surface. · As the tilt of the filter (even when replacing them) remains constant in relation to the optical axis, the optical axis will not shift dramatically. · The filters will not abut against each other. · The filter-contacting portion of the leaf spring is made of resin.
[Features] · A holder for setting round and square type filters. · Can be fitted with up to four filters with external diameters of ø50 mm. · Filters are inserted from the top, but as they are only placed down, they can be angled depending on the filter thickness.
[Features] · A holder for setting filters with diameters of ø15 mm or ø20 mm. · The optical axis height is standardized at 25 mm from the bottom. · Can be fitted with two filters. · Fix by loosening the clamp and sliding the holding part backwards or forwards in line with the thickness of the filter. · Filters with a thickness of up to 4 mm are supported. · The bottom plate features an M4 tapped hole. Mount a rod to change to a rod type. · The F561-20 can also be used as a simplified polarizing element holder by directly turning the element.