The NA140S (Neo-Achromatic) refractor features a two element secondary lens at the rear of the optical tube to provide a flatter field of view (Petzval design). Spherical abberation and field curvature are less than 1/3 to 1/5 of standard doublet refractors.

The GPD2 equatorial mount is the stronger and heftier of the GP mounts. With it’s solid steel R. A. and Declination axes and brass worm gears this mount will hold up to years of heavy use. In order to assure accurate tracking for astrophotography the worm, gears are especially machined to a very high precision that minimizes periodic error. Add the DD2 Motor Set for accurate tracking.

The GPD2 holds almost 50% more weight than the GP2 and comes standard with tripod and counterweight. It is easy to use and functions well for both the visual observer and astrophotography. Motion is controlled by included control knobs for accurate slewing. The polar altitude adjustment varies from 0° to 62° in altitude.

Optional single axis or dual axis motors and controllers are available as are a polar alignment telescope with setting circles. Package includes NA14SSf with Dual Speed Focuser, GPD2 Mount, 7x50 Finder, Bracket, Flip Mirror and NLV25mm Eyepiece.

ITEM #66262 Price: $3599

ITEM #66262M (with DD2 Motor set) Price $4099

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