SVBONY SV121 1.25'' Red Laser Collimator
Precision Calibration Solution
Solves the problem of inaccurate telescope alignment with upgraded triangular screw structure that firmly locks the optical path, ensuring precise coaxial laser alignment and consistent, reliable calibration accuracy every time.
Enhanced Alignment Accuracy
Features a 45° aluminum scale plate with laser reflection for exact mirror alignment, delivering rounder, clearer laser spots (Class I laser, 0.1–0.5 mW output) and faster, more efficient telescope collimation, saving time on tedious adjustments.
Universal Compatibility & Easy Operation
Fits both refractor and reflector telescopes (especially Newtonian and SCT models) with a 1.25" interface, and comes with 3-level brightness adjustment to adapt to any lighting condition, enabling convenient alignment in both daylight and darkness.
Stable Connection & Durable Build
1.25" standard interface with dual 1.5mm rubber rings and micro-angle end compensates for manufacturing tolerances, eliminates gaps and wobble; all-metal body with sandblasted and anodized finish offers anti-corrosion, wear-resistant durability for long-term use.
User-Friendly Professional Design
Combines precision triangular screw light path locking, 45° scale plate alignment, and simplified brightness adjustment, plus wide compatibility with 1.25" telescopes (with optional 2" adapter) to meet the needs of both beginners and seasoned astronomers.

Technical Specifications
| Specification |
Details |
| Product Type |
Laser Collimator |
| Telescope Compatibility |
Refractor and Reflector Telescopes (including Newtonian and SCT models) |
| Barrel Size |
1.25" |
| Optional Compatibility |
2" telescopes with optional adapter |
| Laser Class |
Class I |
| Laser Output Power |
0.1–0.5 mW |
| Brightness Adjustment |
3 Levels |
| Alignment System |
Precision triangular screw optical path locking |
| Alignment Aid |
45° aluminum scale plate with laser reflection |
| Interface Design |
1.25" standard interface |
| Stabilization Features |
Dual 1.5 mm rubber rings and micro-angle end compensation |
| Construction Material |
All-metal body |
| Surface Finish |
Sandblasted and anodized |
| Corrosion Resistance |
Yes |
| Wear Resistance |
Yes |
| Intended Use |
Telescope collimation and optical alignment |
In the Box
- SV121 1.25'' Red Laser Collimator
Warranty
SVBONY's 1 year Warranty