Compare Model Drawings, CAD & Specs Availability Price
946
ND Filter Rotator, 1.0 in. Hub, θXθY, Thumbscrew
$594
In Stock
 946 ND Filter Rotator, 1.0 in. Hub, θXθY, Thumbscrew
In Stock
 $594
946-M
ND Filter Rotator, 1.0 in. Hub, θXθY, Micrometer
$691
In Stock
 946-M ND Filter Rotator, 1.0 in. Hub, θXθY, Micrometer
In Stock
 $691
941
ND Filter Rotator, Compact, 1.0 in. Hub, 1/4-20
$205
In Stock
 941 ND Filter Rotator, Compact, 1.0 in. Hub, 1/4-20
In Stock
 $205
FR-CV-75
ND Filter Rotator, Compact, 7.5 mm Hub, 8-32 and M4
$71
In Stock
 FR-CV-75 ND Filter Rotator, Compact, 7.5 mm Hub, 8-32 and M4
In Stock
 $71

Features

Compact Variable ND Filter Hubs

The FR-CV-75 provides rotational adjustment for any of the Circular Linear Variable ND Filters having a 7.5 mm inner diameter. It has both 8-32 and M4 mounting threads and a rotation lock.
The 941 is compatible with the Circular Variable Metallic Neutral Density Filters having a 1 inch inner diameter. It offers the widest possible aperture and provides basic mounting compatibility with posts, platforms and clamps. The spindle is integrated into a block with an array of tapped and clearance holes.

Mounts with Pitch & Yaw Adjustments

Models 946 and 946-M are precision kinematic mounts that provides angular adjustment of ±4° about each of two orthogonal axes to control the direction of the reflected beam from the face of the filter. The 946-M utilizes micrometers, instead of thumbscrews used in 946, for adjustment. They're compatible with variable neutral density filters with 1 inch inner aperture. An integrated pointer on the mounts indicates the setting of the graduated scale on the attenuator.