The objective lens of the "Pronto" is an air spaced doublet design where two lenses are matched to work as one. The front element is a positive fluorocrown substitute of Extra-Low Dispersion ("ED") glass; the rear element is of high index flint.
Each lens spherical surface is smoothly polished, and in another testament to Al Nagler's forward thinking - this design can be made well, consistently.
This design allows good color correction and stars appear to snap into focus as intense diamonds against a black velour background - the typical high quality refractor experience.
This telescope is in good optical and mechanical condition.
*2” Focuser with -1.25” adaptor
*Made in USA
*cradle ring includes a built in photo tripod adapter
14 day warranty
Shipping and packing is extra