The Askar 0.8x full-frame reducer (185 APO) was developed as a dedicated accessory for the Askar 185 APO astrograph. It guarantees excellent field correction, making it ideal for use with professional cameras and camcorders equipped with a full-frame matrix.

This reducer reduces the focal length by a factor of 0.8x, which in the case of the Askar 185 APO astrograph gives a value of 784 mm at f/5.6. 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 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 0.8x full-frame reducer (185 APO)

• focal reducer dedicated to the Askar 185 APO astrograph, compatible with cameras and full-frame cameras
• 0.8x multiplicity giving an effective focal length of 1063 mm at f/5.6
• can be used with filters with a diameter of 2"
• 55mm back focus

Technical parameters

• optical design: quadruplet
• multiplicity: 0.8x
• compatibility: Askar 185 APO
• focal length without reducer: 1295 mm
• focal length with reducer: 1063 mm
• aperture without reducer: f/7
• aperture with reducer: f/5.6
• Full illumination disc diameter: 44 mm
• rear thread (camera side): M68xz / M54x0.75 / M48x0.75
• front thread (extractor side): M92x1
• possibility of installing a filter: yes, 2"
• back focus: 55 mm
• total length: 110 mm
• weight: TBD

Set elements

• Askar 0.8x full-frame reducer (185 APO)

Guarantee

24 months