Pentax Eyepiece SMC XW40-R 40mm 2" ♦ 32 mm Plössl: The

♦ 32 mm Plössl: The eyepiece provides maximum field of view for 1

25" eyepieces

♦ Focal length up to 600 mm - working distance 53 mm♦ Focal length 610 mm and more - working distance 55 mm

a first filter for those on a tight budget

Pentax Eyepiece SMC XW40-R 40mm 2" ♦ 32 mm Plössl: TheDescription Pentax SMC XW Revival Eyepieces Pentax re launched two popular eyepiece models: XW 30 and XW 40. The high performance XW series optics incorporates high refraction, extra low dispersion glass elements to produce a well balanced image with minimal aberrations. It is particularly designed to reduce the disturbing blackout effect by effectively compensating the spherical aberration of the pupil. Main Features: Long focal length makes it