IndusMart

•Adopt hyperbolic primary mirror to realize F2.8 fast focal ratio. It delivers performance that's up to twice as fast as the F4 system.

• Carbon fiber was used to create its lens barrel material, which is beautiful, durable and lightweight, the total weight is less than 5kg.

• It also provides best thermal stability by using H-PZ33 optical glass (like Pyres glass).

• Equipped with high precision CNC mechanical parts, durable and firm.

• The use of a precision 2.5" R&P focuser (included 1:10 fine-tuning) offers larger payload and a stronger hold, so that your focuser will not slip when using heavy-duty observation accessories or camera.

• It features a triplet image corrector that helps to achieve 44mm full frame photography and meet the modern needs of observation and imaging.

• The “push-pull” collimation mechanism behind primary mirror is simple to use.

• A full set includes a pair of tube rings, a handle, a dovetail plate and an aluminum carrying case.

Aperture: 150mm

Focal length/ratio: 420mm/F2.8

Primary mirror type: Hyperboloid

Mirror material: H-PZ33 (similar as Pyrex glass)

Corrector type: Triplet air-spaced

Short axis diameter of secondary mirror: 70mm

Fully illuminated image circle: 44mm

Actual field: 6 degree

Main tube material: Carbon fiber

Main tube outer diameter: 195mm

Overall tube length: 445mm

Net weight: 4.45kg

Gross weight: 5.95kg (including tube cap, handle, tube rings and dovetail plate)

Resolution: 0.77 arc seconds

Focuser: 2.5”microdrive focusing

Visual limiting star magnitude: 12.7

Back focus: 55mm