Askar 0.75x reducer for 65PHQ extras opinie

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The Askar f/4.8 (65PHQ) reducer has been developed as a dedicated accessory for the Askar 65PHQ astrograph. 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 0.75x, which in the case of the Askar 65PHQ astrograph gives a value of 312 mm at f/4.8. Such parameters allow not only to take breathtaking photos in a wide field of view, but above all to significantly shorten the exposure time.

This device allows for the mounting of 2" diameter filters, screwed into the M48x0.75 thread located on the camera side.

Key Features of the Askar f/4.8 Reducer (65PHQ)

• focal reducer dedicated to the Askar 65PHQ astrograph, compatible with full-frame cameras and cameras
• 0.75x multiplier giving an effective focal length of 312 mm at f/4.8
• can be used with 2" diameter filters
• 55mm back focus

Technical parameters

• optical design: quadruplet
• multiplicity: 0.75x
• compatibility: Askar 65PHQ
• focal length without reducer: 416 mm
• focal length with reducer: 312 mm
• aperture without reducer: f/6.4
• aperture with reducer: f/4.8
• rear thread (camera side): M54x0.75 / M48x0.75
• front thread (from the extractor side): M58x0.75 (female)
• possibility of installing a filter: yes, 2"
• backfocus: 55mm
• diameter: 6 cm
• weight: 320 g

Set components

• Askar f/4.8 reducer (65PHQ)
• thread adapter

Guarantee

24 months