Brand

•  PlaneWave (7)
•  ZWO (6)

Price

• €3,527.00 - €146,700.00

Aperture (mm)

•  70 (1)
•  90 (1)
•  110 (2)
•  131 (2)

Filter thread

•  M48 × 0.75 (2-inch) (6)

Focal length (mm)

•  490 (1)
•  609 (1)
•  766 (2)
•  983 (2)

Focal ratio

•  6.8 (1)
•  7 (3)
•  7.5 (2)
•  f/6.5 (1)
•  f/6.8 (4)
•  f/7.2 (1)
•  f/8 (1)

Image circle (mm)

•  44 (6)

Optical design

•  Four-element air-spaced apochromat; one ED element (6)