TAKAHASHI TPL EYEPIECE 18mm ZenithStar The 6" f/9 Ritchey-Chrétien comes

The 6" f/9 Ritchey-Chrétien comes with a dual-speed 2" 10:1 Crayford focuser with 41mm of focus travel and includes a 1

A vast range of accessories can be connected with the Dual-DEC system such as Vixen saddles

Optical thickness 5 mm

The GIOTTO 220 can be used with telescopes with an aperture up to 220mm and an external tube diameter between 182 - 244mm with the included plastic thumbscrews

5 mm from M76 thread

TAKAHASHI TPL EYEPIECE 18mm ZenithStar The 6" f/9 Ritchey-Chrétien comesThe Takahashi TPL 18mm eyepiece provides a 48 degree apparent field of view and extremely sharp on axis performance. Takahashi's TPL series are the definitive standard eyepieces, made in Japan and designed for use with high performance telescope systems where optical clarity is paramount. Stars are very sharp up to half the field of view, gradually swelling to the edge of the field. When combined with a short Barlow, the field is flat to the edge.