Explore Scientific Focal Extender 3x 2 in. FE03-020

3x Focal Extender; 2.0-inch O.D. Barrel; 1.25″ Eyepiece Adapter; Fully EMD-Coated on all air-to-air lens surfaces, with all lens elements edge-blackened

Specifications on this listing: 3x, 2 in, 3x 2. Check these figures against the part in hand, not against a similar model.

Barrel diameter and thread decide fit. A 1.25-inch eyepiece will not seat in a 2-inch focuser without an adapter, and an adapter adds back focus. Filters are listed by the wavelength they pass and the thread they screw into.

Sold under the Explore Scientific name. The specification block above is published for this listing; check the dimensions against the item you are replacing before ordering.

Ships in one to two business days with tracking emailed at dispatch. US orders over $58 ship free.