Top-quality all-metal focusers, perfect for home-built Newtonian reflectors or for upgrading focusers on commercial reflectors. Smooth, no-backlash movement ensures precise focusing. Chrome-plated brass drawtube with strong aluminum base. Tension-adjustment. Universal base design fits any size tube. 1.25" Rack-and-Pinion Focuser Quality diagonal-cut rack for smooth focusing. Knurled focus knobs. Racked-in height 3-1/2". Focus travel 2.25". 1.25"/2" Rack-and-Pinion Focuser Ideal for larger scopes and wide-field optics. Interchangeable thread-on 2" and 1.25" holding sleeves. Precision-plated brass diagonal-cut rack. Long travel for both visual and photographic use. Racked-in height 3-7/8". Focus travel 3.0". |