The E-Series Kinematic Optical Mirrors Mounts are an ideal and cost-effective choice for mounting circular optics in metric or English diameters sizes ranging 12.5mm or 12.7mm to 100mm or 101.6mm. The M6 x 0.25 (101.6 TPI) adjustment screws provide smooth movement when making precise angular adjustments (±3.5°).
The E-Series Kinematic Optical Mirror Mounts feature mounting holes with both a counterbore designed to accommodate M4 or 8-32 mounting hardware, and M6 x 1.0 internal threads for increased mounting versatility and direct compatibility to TECHSPEC® Metric Stainless Steel Mounting Posts and Pedestal Posts.
The E-Series mounts also feature a base optical axis height of 25.4mm, which increases by standard 12.7mm increments with larger mounts, making them directly compatible with industry standard optical mounts and TECHSPEC® Kinematic Optical Mirror Mounts. TECHSPEC® Metric Stainless Steel Mounting Posts and Pedestal Posts are also designed with 25.4mm height increments.
The 76.2mm and 101.6mm E-Series mounts also feature two additional 3mm diameter pin holes, offset 25mm from the mounting holes, allowing easier and more precise alignment in OEM applications.


What optics are compatible with the E-Series Kinematic Optical Mirror Mounts?
The E-Series Kinematic Optical Mirror Mounts are designed for circular optics of 0.5”, 1”, 2”, 3”, and 4” diameters (metric diameters of 12.5mm, 25mm, 50mm, 75mm, and 100mm are also compatible with slight change in optical centerline height).
What is the difference between the E-Series and TECHSPEC® Kinematic Optical Mirror Mounts?
The E-Series is a value-packed entry point into the kinematic mount range. Below is a comparison with the TECHSPEC® Kinematic Mounts.
| E-Series versus TECHSPEC® | ||
| Product Line | E-Series | TECHSPEC® |
|---|---|---|
| Adjustment Screw Threads | 101.6 TPI | 100 TPI |
| Adjustment Knobs | Removable Adjustment Knobs | Removable Adjustment Knobs |
| Adjustment Screw Contact Materials | Hardened Stainless Steel | Hardened Stainless Steel |
| Tip-Tilt Range | ±3.5° | ±5° |
| Mounting Threads | M4, 8-32, and M6x1.0 | M4 and 8-32 |
| Number of Adjustment Screws | 2 | 2 or 3 |
| Compatible Optical Diameters | 0.5”, 1”, 2”, 3”, and 4” | 0.5”, 1”, and 2” |
| Additional Features | Finger Cut Outs for Easier Optic Placement | |
| Copper-tipped Thread Locking Screws | ||
What are the ideal applications for the E-Series mounts?
The E-Series mounts were designed for OEM integration with a compact overall size, five available compatible diameters, clever mounting solutions, and removable adjustment knobs. These features also make the E-Series mounts essential for benchtop applications in educational and experimental environments.
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