Finderscopes are secondary scopes, used to help locate objects in the main telescope.

A star diagonal, a term commonly associated with 90° mirror diagonals such as this, lets you view objects that are at a 90° angle from the direction the telescope is pointing.  This allows comfortable viewing when the telescope is at or near the zenith(directly overhead).

Celestron's erect image diagonals are Amici prism designs, meaning that images are upright and laterally correct.  This design, however, instead renders images which are laterally reversed-but are brighter than an erect image diagonal.&3160 When maxing out your magnification capacity given your telescope and seeing conditions, that bit of brightness is pretty important.

The visual back comes standard with most Schmidt-Cassegrain telescopes of 5.0" to 8.0" diameters.  It screws on to the rear threading to reduce the cavity to take accessories of 1.25", such as star diagonals and tele extenders.

This adpapter allows you to link your telescope drive directly to the cigarette lighter receptacle of your car, for a quick and easy 12v DC power source in one step.
Cord is 25ft in length.

An ultra-heavy-duty equatorial mount, the respected Celestron CG-5 mount has earned its good reputation amongst the amateur astronomy community because it is an affordable, stable beauty.   Now the computerized version, available on many of Celestron's finer scopes, is also available for purchase so that you can put any optical tube assembly that you like upon it.  The optional GPS accessory is highly recommended for incredibly accurate scope alignments.

Using accessories such as cameras, lens hoods, tele-extenders and a 2.00" diagonal affects the balance of your Celestron telescope.

A Celestron counterweight restores proper balance, making for easier handling and improved accuracy in the tracking of your scope.

You don't need perfect balance to operate your telescope, and in fact it is not always possible to achieve perfect balance with fixed-position weights.  You merely seek to reduce(or eliminate) swing when the RA and declination locks are released, and Celestron's counterweights help you easily obtain the balance and stability of your telescope which you desire.