Hotech SCA-125C Crosshair Laser Collimator 1.25" Self-Centering
When will I receive it?
Products marked In stock are dispatched promptly — the exact delivery estimate for your address is shown at checkout, before you confirm the order.
For international shipments, delivery times depend on the destination and are always displayed at checkout before payment.
Products marked Available on order require 5–15 business days for processing. Our team will keep you updated promptly if anything changes.
What are the warranty terms?
Shop with confidence: all our products include a 24-month legal warranty for conformity defects, managed directly by our team.
Many brands also offer extended warranty coverage beyond 24 months — contact us to find out the specific terms for the product you're interested in.
Click here for more information.
Can I return a product?
Yes: you have 14 days from delivery to return any product and receive a full refund — see our Refund Policy for full details.
Items must be returned in their original condition and packaging. Return shipping costs are the customer's responsibility.
Not sure which product is right for you? Contact us before buying — we'll help you find the perfect instrument so you won't need to return anything.
Sei un'azienda? Compila il modulo per la fatturazione
Clicca sul pulsante qui sotto per inserire i tuoi dati aziendali:
Vai al moduloSelf-centering 1.25" laser collimator with Crosshair beam for precision collimation of Newtonian and Schmidt-Cassegrain telescopes — Hotech's SCA technology eliminates the off-axis problem at its root
The problem all other collimators ignore
Any standard laser collimator inserted into a telescope focuser suffers from a structural flaw: the focuser clamp screw, pressing on one side only, pushes the collimator body off the optical axis. The result is a laser beam that does not align with the telescope axis. The Hotech SCA-125C solves this with SCA (Self-Centering Adapter) technology: an internal rubber membrane that, when the locking ring is turned, expands uniformly in all directions and centers the collimator body precisely on the focuser axis.
Crosshair model: crosshair for primary and secondary mirrors
The Crosshair model adds 4 reference lines forming a crosshair to the classic red laser dot. This enables more precise centering of both the secondary mirror and the primary mirror on the 45° target plate — especially when the telescope is severely decollimated. The 45° target plate with laser-etched grid is included as standard.
Professional quality construction
CNC-machined body, minimal weight, powered by the included CR123 3V lithium battery. Each collimator is delivered in an elegant hard case.
| SPECIFICATIONS | |
| Barrel Diameter | 1.25" (31.8 mm) |
| Laser Beam Type | Crosshair (dot + 4 lines) |
| Centering Technology | SCA (Self-Centering Adapter) |
| 45° Target Plate | Included, laser-etched grid |
| Compatibility | Newtonian and Schmidt-Cassegrain telescopes |
| Battery | CR123 3V lithium (included) |
| IN THE BOX | |
| Collimator | SCA-125C with adapters |
| Hard Case | Included |
| Battery | CR123 lithium, included |
| Manual | In English |