Askar 0,76x full frame reducer for Askar 80 PHQ extras opinie

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The Askar f / 5.7 (80PHQ) reducer was developed as a dedicated accessory for the Askar 80PHQ astrograph. It guarantees an excellent field correction, thanks to which it works perfectly with professional cameras and camcorders equipped with a full-frame matrix.

This reducer reduces the focal length by a factor of 0.76x, which in the case of the Askar 80PHQ astrograph gives the value of 456 mm at f / 5.7. Such parameters allow not only to take breathtaking photographs in a wide field of view, but also to significantly shorten the exposure time.

This tool allows for the installation of filters with a diameter of 2 ", screwed into the M48x0.75 thread on the camera side.

The most important features of the Askar f / 5.7 (80PHQ) reducer

• a focal reducer dedicated to the Askar 80PHQ astrograph, compatible with cameras and full-frame cameras
• a multiple of 0.76x giving an effective focal length of 456 mm at f / 5.7
• can be used with filters with a diameter of 2 "
• 55mm back focus

Technical parameters

• optical construction: triplet
• times: 0.76x
• compatibility: Askar 80PHQ
• focal length without reducer: 600 mm
• focal length with reducer: 456 mm
• light shone without reducer: f / 7.5
• light shone with reducer: f / 5.7
• rear thread (from the camera side): M68x1 / M54x0.75 / M48x0.75
• front thread (from the exhaust side): M64x0.75
• possibility of installing a filter: yes, 2 "
• back focus: 55 mm
• length (without adapters): 75 mm
• diameter: 68 mm

Elements of the set

• Askar f / 5.7 reducer (80PHQ)
• thread adapters

Guarantee

24 months