Compare Model Drawings, CAD & Specs Optic Diameter Drive Type Adjustment Screw Thread Sensitivity Availability Price
25.4 mm Not Included
25.4 mm Knob, locking 100 TPI 4.9 arc sec
25.4 mm Micrometer 51 TPI 9.7 arc sec
50.8 mm Not Included
50.8 mm Knob, locking 100 TPI 3.3 arc sec
50.8 mm Micrometer 51 TPI 6.5 arc sec


  • Mechanism
  • Optic Diameter
  • Adjustments
    θx, θy
  • Optic Loading
  • Material
    Anodized Aluminum
  • Thread Type
    1/4-20 (M6) SLOT


Keep Your Hands Out of Harms Way

Top adjust mounts have their adjustment screws located above where the optic is held so that your hands never have to cross into the beam path area.

Your Choice of Actuator - Or Not

VGM series Top-Adjust Gimbal Mounts are offered in three choices. For applications requiring a user-supplied actuator, VGM mounts can be ordered without actuators. 

Model Included Actuators
 -AJS  AJS100-0.5
 -BM  BM17.04N
 -N  N/A