ASKAR 130PHQ APO QUADRUPLET f/7.7

The Askar 130PHQ is a professional apochromatic flatfield Petzval quadruplet with a focal ratio of f/7.7 and a corrected field of 60mm in diameter, making it suitable for use with medium-format cameras.

The Askar 130PHQ includes two Extra Low Dispersion glass elements for superb correction of chromatic aberration.

Differently from standard ED refractors, the Askar 130PHQ features a Petzval design that does not require to set the sensor to a specific distance to the last lens. That leaves the freedom to use any filter wheel, any off-axis guider or accessory without any worry to calculate the correct distance from the flattener. 

With a large 60mm image circle and a focal ratio of f/7.7, this is the perfect astrograph for the advanced astrophotographer. The large rack and pinion 3.4" focuser has a massive 8kg payload capacity, can be rotated 360° to perfectly frame the subject and it has a reduction gear of 10:1 for precise focusing. Its long travel distance allows use as a visual instrument as well as a capable astrograph. The 130PHQ is natively compatible with the Prima Luce Lab Sesto Senso 2 robotic microfocuser.

All the lenses are fully multi-coated and the tube is internally flocked to reduce reflections and absorb stray light. The tube is made of CNC-machined aluminium, the rack and pinion focusing mechanism of brass and the mechanical components are engineered to provide the best rigidity, performance and durability.

The Askar 130PHQ comes with a variety of adapters to connect a wide range of imaging and visual accessories.

• Askar 130PHQ
• Pair of tube rings
  
• 300mm Losmandy style dovetail bar
• Carrying handle
• Adapter M86 x 1 to M68 x 1
• Adapter M68 x 1 to M54 x 0.75
• Adapter M54 x 0.75 to M54 x 0.75
• Adapter M54 x 0.75 to M48 x 0.75 with 2" filter thread
• 2" visual back
• 1.25" adapter
• Manual