The F60M3 - 10 x 60 mm (2.5-Inch) Aperture Finderscope /w Straight Through Focuser by Stellarvue:
The Stellarvue F60M3 Finderscope is a straight through version of the F60M2. Now you can use a finderscope in conjunction with auto guiders or mount a Nagler 22 to the telescope for stunning wide field views. This finder provides a straight through inverted image only. It comes with a 2-inch helical focuser, 1.25-inch adapter and our E3023R crosshair eyepiece that works with optional illuminators. For a true porthole view of the sky, use our 2-inch 26 mm 68-degree crosshair reticle eyepiece.