Price

• €999.00 - €4,730.00

Aperture (mm)

•  60 (1)
•  130 (1)
•  160 (1)
•  180 (1)

Focal length (mm)

•  355 (1)
•  430 (1)
•  500 (1)
•  530 (1)

Focal ratio

•  f/2.8 (1)
•  f/3.3 (2)
•  f/5.9 (1)

Image circle (mm)

•  44 (3)

Optical design

•  Fluorite apochromat, 2 elements in 2 groups (1)
•  Hyperbolic flat-field astrograph (2)
•  Hyperbolic flat-field astrograph (hyperbolic primary + flat secondary + field corrector) (1)