GMx Series Grating/Square Lens Mount
Siskiyou GMx series grating mounts offer the ultimate in stability and ease-of-adjustment in a true gimbal mount. The optic mounting surface is at the axis of rotation for pitch and yaw motion providing ease of adjustment not found in many other mounts. In addition, these mounts provide a large clear aperture which allows use of either transmissive or reflective optics.
The GMx Series of mounts can hold .5" thru 2.0" square optics with a thickness greater than 2 mm, and offer up to 8° of total rotation in each axis, with a resolution as low as 3.7 arcseconds. All adjustments are accessed from the top of the mount to facilitate their use in space constrained systems and instruments, and they can be either table or post mounted for maximum operational flexibility and convenience. Mounting provisions include clearance holes for 1/4-20 (M6) cap screws from the top of the mount, dowel pin locations and 1/4-20 (M6) tapped holes on the bottom surface.
Product Features
- Effective thread pitch: 170 tpi
- Maximized clear aperture
- Vacuum compatible versions available
Choose options to see performance specifications and downloads.
Expand a variant below to view variant-specific images, product details, downloadable files, and additional technical details.
GMx25 [42220000E]
Product Details
Siskiyou GMx25 grating mounts offer the ultimate in stability and ease-of-adjustment in a true gimbal mount. The optic mounting surface is at the axis of rotation for pitch and yaw motion providing ease of adjustment not found in many other mounts. In addition these mounts provide a large clear aperture which allows use of either transmissive or reflective optics.
The GMx25 mounts can hold 25mm or 1.0" square optics with a thickness greater than 2 mm and offer up to 8° of total rotation in each axis with a resolution as low as 3.7 arcseconds. All adjustments are accessed from the top of the mount to facilitate their use in space constrained systems and instruments and they can be either table or post mounted for maximum operational flexibility and convenience. Mounting provisions include clearance holes for 1/4-20 (M6) cap screws from the top of the mount dowel pin locations and 1/4-20 (M6) tapped holes on the bottom surface.
Product Features:
- Effective thread pitch 170 tpi
- Maximized clear aperture
- Vacuum compatible versions available
- RoHS compliant
Performance Specifications:
Travel / axis:
- Pitch: 8°
- Yaw: 8°
- Roll: 8°
Minimum controllable motion*:
- Pitch: 5.1 arc sec.
- Yaw: 3.7 arc sec.
- Roll 7.3 arc sec.
*Minimum controllable motion*: BASED ON 1° OF ADJUSTMENT SCREW ROTATION
GMx25 M [42220000M]
Product Details
Siskiyou GMx25 grating mounts offer the ultimate in stability and ease-of-adjustment in a true gimbal mount. The optic mounting surface is at the axis of rotation for pitch and yaw motion providing ease of adjustment not found in many other mounts. In addition these mounts provide a large clear aperture which allows use of either transmissive or reflective optics.
The GMx25 mounts can hold 25mm or 1.0" square optics with a thickness greater than 2 mm and offer up to 8° of total rotation in each axis with a resolution as low as 3.7 arcseconds. All adjustments are accessed from the top of the mount to facilitate their use in space constrained systems and instruments and they can be either table or post mounted for maximum operational flexibility and convenience. Mounting provisions include clearance holes for 1/4-20 (M6) cap screws from the top of the mount dowel pin locations and 1/4-20 (M6) tapped holes on the bottom surface.
Product Features:
- Effective thread pitch 170 tpi
- Maximized clear aperture
- Vacuum compatible versions available
- RoHS compliant
Performance Specifications:
Travel / axis:
- Pitch: 8°
- Yaw: 8°
- Roll: 8°
Minimum controllable motion*:
- Pitch: 5.1 arc sec.
- Yaw: 3.7 arc sec.
- Roll 7.3 arc sec.
*Minimum controllable motion*: BASED ON 1° OF ADJUSTMENT SCREW ROTATION
GMx50 [42230000E]
Product Details
Siskiyou GMx50 grating mounts offer the ultimate in stability and ease-of-adjustment in a true gimbal mount. The optic mounting surface is at the axis of rotation for pitch and yaw motion providing ease of adjustment not found in many other mounts. In addition these mounts provide a large clear aperture which allows use of either transmissive or reflective optics.
The GMx50 mounts can hold 50mm or 2.0" square optics with a thickness greater than 2 mm and offer up to 7° of total rotation in each axis with a resolution as low as 3.6 arcseconds. All adjustments are accessed from the top of the mount to facilitate their use in space constrained systems and instruments and they can be either table or post mounted for maximum operational flexibility and convenience. Mounting provisions include clearance holes for 1/4-20 (M6) cap screws from the top of the mount dowel pin locations and 1/4-20 (M6) tapped holes on the bottom surface.
Product Features:
- Effective thread pitch 170 tpi
- Maximized clear aperture
- Vacuum compatible versions available
- RoHS compliant
Performance Specifications:
Travel / axis:
- Pitch: 6°
- Yaw: 7°
- Roll: 6°
Minimum controllable motion*:
- Pitch: 3.6 arc sec.
- Yaw: 4.0 arc sec.
- Roll 6 arc sec.
*Minimum controllable motion*: BASED ON 1° OF ADJUSTMENT SCREW ROTATION
GMx50 M [42230000M]
Product Details
Siskiyou GMx50 grating mounts offer the ultimate in stability and ease-of-adjustment in a true gimbal mount. The optic mounting surface is at the axis of rotation for pitch and yaw motion providing ease of adjustment not found in many other mounts. In addition these mounts provide a large clear aperture which allows use of either transmissive or reflective optics.
The GMx50 mounts can hold 50mm or 2.0" square optics with a thickness greater than 2 mm and offer up to 7° of total rotation in each axis with a resolution as low as 3.6 arcseconds. All adjustments are accessed from the top of the mount to facilitate their use in space constrained systems and instruments and they can be either table or post mounted for maximum operational flexibility and convenience. Mounting provisions include clearance holes for 1/4-20 (M6) cap screws from the top of the mount dowel pin locations and 1/4-20 (M6) tapped holes on the bottom surface.
Product Features:
- Effective thread pitch 170 tpi
- Maximized clear aperture
- Vacuum compatible versions available
- RoHS compliant
Performance Specifications:
Travel / axis:
- Pitch: 6°
- Yaw: 7°
- Roll: 6°
Minimum controllable motion*:
- Pitch: 3.6 arc sec.
- Yaw: 4.0 arc sec.
- Roll 6 arc sec.
*Minimum controllable motion*: BASED ON 1° OF ADJUSTMENT SCREW ROTATION
GMx12 [42210000E]
Product Details
Siskiyou GMx12 grating mounts offer the ultimate in stability and ease-of-adjustment in a true gimbal mount. The optic mounting surface is at the axis of rotation for pitch and yaw motion providing ease of adjustment not found in many other mounts. In addition these mounts provide a large clear aperture which allows use of either transmissive or reflective optics.
The GMx12 mounts can hold 12mm or .5" square optics with a thickness greater than 2 mm and offer up to 8° of total rotation in each axis with a resolution as low as 3.7 arcseconds. All adjustments are accessed from the top of the mount to facilitate their use in space constrained systems and instruments and they can be either table or post mounted for maximum operational flexibility and convenience. Mounting provisions include clearance holes for 1/4-20 (M6) cap screws from the top of the mount dowel pin locations and 1/4-20 (M6) tapped holes on the bottom surface.
Product Features:
- Effective thread pitch 170 tpi
- Maximized clear aperture
- Vacuum compatible versions available
- RoHS compliant
Performance Specifications:
Travel / axis:
- Pitch: 8°
- Yaw: 8°
- Roll: 8°
Minimum controllable motion*:
- Pitch: 5.1 arc sec.
- Yaw: 3.7 arc sec.
- Roll 7.3 arc sec.
*Minimum controllable motion*: BASED ON 1° OF ADJUSTMENT SCREW ROTATION
GMx12 M [42210000M]
Product Details
Siskiyou GMx12 grating mounts offer the ultimate in stability and ease-of-adjustment in a true gimbal mount. The optic mounting surface is at the axis of rotation for pitch and yaw motion providing ease of adjustment not found in many other mounts. In addition these mounts provide a large clear aperture which allows use of either transmissive or reflective optics.
The GMx12 mounts can hold 12mm or .5" square optics with a thickness greater than 2 mm and offer up to 8° of total rotation in each axis with a resolution as low as 3.7 arcseconds. All adjustments are accessed from the top of the mount to facilitate their use in space constrained systems and instruments and they can be either table or post mounted for maximum operational flexibility and convenience. Mounting provisions include clearance holes for 1/4-20 (M6) cap screws from the top of the mount dowel pin locations and 1/4-20 (M6) tapped holes on the bottom surface.
Product Features:
- Effective thread pitch 170 tpi
- Maximized clear aperture
- Vacuum compatible versions available
- RoHS compliant
Performance Specifications:
Travel / axis:
- Pitch: 8°
- Yaw: 8°
- Roll: 8°
Minimum controllable motion*:
- Pitch: 5.1 arc sec.
- Yaw: 3.7 arc sec.
- Roll 7.3 arc sec.
*Minimum controllable motion*: BASED ON 1° OF ADJUSTMENT SCREW ROTATION
![GMx25 [42220000E] product variant image view 1](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42220000E.jpg)
![GMx25 [42220000E] product variant image view 2](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42220000E_1.jpg)
![GMx25 M [42220000M] product variant image view 1](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42220000M.jpg)
![GMx25 M [42220000M] product variant image view 2](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42220000M_1.jpg)
![GMx50 [42230000E] product variant image view 1](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42230000E.jpg)
![GMx50 [42230000E] product variant image view 2](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42230000E_1.jpg)
![GMx50 M [42230000M] product variant image view 1](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42230000M.jpg)
![GMx50 M [42230000M] product variant image view 2](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42230000M_1.jpg)
![GMx12 [42210000E] product variant image view 1](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42210000E.jpg)
![GMx12 [42210000E] product variant image view 2](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42210000E_1.jpg)
![GMx12 M [42210000M] product variant image view 1](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42210000M.jpg)
![GMx12 M [42210000M] product variant image view 2](https://cdn11.bigcommerce.com/s-p4r27vn1d8/content/product_image_library/42210000M_1.jpg)