William Optics 3.5 Rotator Rotolock Visual Back : twist-lock comfort voor je FLT
The William Optics 3.5-inch Rotolock visual back threads onto the 3.5-inch focuser of the large FluoroStar refractors and provides a generous 2-inch opening with a Rotolock clamping system on the eyepiece side. A quick twist of the locking ring and your eyepiece or star diagonal is clamped evenly all around: tilt-free, centered, and scratch-free.
Het Rotolock-principe werkt als een twist-lock: geen losse klemschroeven, wisselen gaat met een handbeweging, ook met zware 2 inch oculairs en met handschoenen aan. William Optics levert deze visual back in meerdere kleurstellingen, passend bij de accentkleur van je buis.


For the large FLT refractors
Made for the 3.5-inch focusers and extension tubes of the William Optics FluoroStar line. This is how you use your complete 2-inch eyepiece and diagonal park on the largest WO tubes, without play in the chain.
Featured accessories
Combine the visual back with the Dura Bright 2-inch diagonal for comfortable visual observation on your FLT.
For whom yes and for whom no
- ✓ Owners of a FluoroStar with 3.5-inch focuser
- ✓ Visual observers who frequently and quickly switch eyepieces
- ✗ Owners of 2.5 or 3-inch focusers: choose the appropriate Rotolock or rotator adapter
Specifications
| Type | Rotolock visual back |
| Telescope silk | 3.5-inch focuser (FluoroStar) |
| Accessory side | 2-inch, Rotolock clamping system |
| Material | Aluminum |
You can find more accessories for this merk at the William Optics merk Page.





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