The Askar 107PHQ/130PHQ/151PHQ Universal Reducer has been developed as a dedicated accessory for the Askar 107PHQ, 130PHQ and 151PHQ astrographs. It guarantees excellent field correction, making it ideal for professional cameras and camcorders equipped with a full-frame sensor.

This reducer reduces the focal length by a factor of 0.7x, which in the case of the Askar 107PHQ astrograph gives a value of 524 mm at f/4.9, for the 130PHQ model 700 mm at f/5.4, and for the 151PHQ 740 mm at f/4.9. Such parameters allow not only to take breathtaking photos in a wide field of view, but above all to significantly shorten the exposure time.

The reducer enables the connection of cameras equipped with M68x1, M54x0.75 and M48x0.75 threads.

Key Features of the Askar 107PHQ/130PHQ/151PHQ Universal Reducer

• focal reducer dedicated to Askar 107PHQ and 130PHQ astrographs, compatible with full-frame cameras and cameras
• three-element optics with a single low-dispersion glass lens
• 0.7x multiplier giving an effective focal length of 524 mm for the 107PHQ and 700 mm for the 130PHQ
• 55mm back focus

Technical parameters

• optical design: ED triplet
• number of ED glass elements: 1
• multiplicity: 0.7x
• compatibility: Askar 107PHQ / 130 PHQ / 151 PHQ
• focal length without reducer (107 PHQ / 130PHQ): 749 mm / 1000 mm
• focal length with reducer (107 PHQ / 130PHQ): 524 mm / 700 mm
• aperture without reducer (107 PHQ / 130PHQ): f/7 / f/7.7
• aperture with reducer (107 PHQ / 130PHQ): f/4.9 / f/5.4
• with the Askar 151PHQ refractor we get a focal length of 740 mm and a focal ratio of f/4.9
• rear thread (camera side): M68x1 / M54x0.75 / M48x0.75
• front thread (from the extractor side): M77x1
• backfocus: 55mm
• dimensions: 9.3 x 9.3 x 8.6 cm
• weight: 600 g

Set components

• Askar 107PHQ/130PHQ/151PHQ Universal Reducer
• threaded adapters

Guarantee

24 months