Diagonal Telescope

i have a measly 60mm refractor telescope that came with a 25mm lens a 12.5mm a sr4mm and a diagonal plus a barlow and the erector. firstly-what good is thing actually good for? and second, what dimensions should i use for planetary viewing? what is the best telescope for it?. i’d like to know the [...]

For ages 8 and up www.mastermindtoys.com Introducing a high-quality, entry-level telescope that excels at sky and land viewing. Meade’s 70AZ-AR boasts the top-level imagery and smooth controls synonymous with all Meade optics — at a fraction of the cost of advanced telescopes. Featuring a capable 70mm objective lens, free StarLocator™ astro software and a classic, [...]

My new telescope has piqued my curiosity–More specifically, why is it that when looking into the eyepiece we don’t see the cross shaped mount for the diagonal mirror (or the mirror itself?) in the image? I can’t get my head around the problem and it’s been so long since I did optic physics that I’ve [...]

Here Im polishing a Newton telescope diagonal. There are several diagonals mounted on the tool. But only the one in the center will be used. Related Blogs Children Friendly Books » Isaac Newton and Physics for Kids: His Life and Ideas with 21 Activities Double-Diagonals Have You Seeing Double (Margin)? | Condor Options Sky-Watcher GreatStart 130N-EQ2 Newtonian [...]

Apochromatic refractors due to their unobstructed, text-book like diffraction patterns produce the sharpest, highest quality optical imaging available bar-none, aperture for aperture, of any telescope optical system. These breathtakingly pristine celestial views are coveted by experienced amateur astronomers. While the cost is expensive compared to a Newtonian reflector of similar aperture, during those cherished moments [...]