Thumler's Tumbler A-R12 Tumbler | TT-AR12 LED With a 30mm apochromatic lens

With a 30mm apochromatic lens design that includes ED glass(Extra-low Dispersion)

Accuracy Improvement: Periodic Error has been worked to be within ± 10 arc seconds – half that of the old version

Bias Frames

The FF107 APO adopts a 3+1 quadruplet lens structure which contains two pieces of ED glass that can effectively reduce chromatic aberration and enhance clarity and sharpness

you can simply attach GIOTTO to the front of your telescope by locking it in place with the included thumbscrews (except 560 model)

Thumler's Tumbler A-R12 Tumbler | TT-AR12 LED With a 30mm apochromatic lensThumler's A R Series of tumblers. Deluxe, large 12 lb. capacity hexagon rubber barrel. Quiet, efficient operation. Well suited for the serious rock hobbyist or for the sportsman as a case polisher for handloaded ammunition. Overload protection, continuous duty, fan cooled motor. Spare Parts Available Here