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Apertura
(GSO)

Model

Optical Specs

Protostar
Part No.

Price

AD8 Dobsonian

205mm f/5.9, 1200mm focal length

50.0mm secondary mirror

50023370

or

50023370H
(heated)

$110.00

or

$150.00

AD10 Dobsonian

250mm f/4.8, 1200mm focal length

63.0mm secondary mirror

63030270

or

63030270H
(heated)

$120.00

or

$160.00

AD12 Dobsonian

305mm f/5, 1520mm focal length

70.0mm secondary mirror

70035675

or

70035675H
(heated)

$135.00

or

$175.00

6" f/4 Imaging Newtonian

152mm f/4, 610mm focal length

62.5mm secondary mirror

62517480

or

62517480H
(heated)

$125.00

or

$165.00

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