The Askar 0.6x full-frame reducer (103 APO) was developed as a dedicated accessory for the Askar 103 APO astrograph. It guarantees excellent field correction, which makes it work perfectly with professional cameras and camcorders equipped with a full-frame matrix.

This reducer reduces the focal length by a factor of 0.6x, which in the case of the Askar 103 APO astrograph gives a value of 420 mm at f/4.08. 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 0.6x full-frame reducer (103 APO)

• focal reducer dedicated to the Askar 103 APO astrograph, compatible with cameras and full-frame cameras
• 0.6x factor giving an effective focal length of 420 mm at f/4.08
• can be used with filters with a diameter of 2"
• 55mm back focus

Technical parameters

• optical design: quadruplet
• multiplicity: 0.6x
• compatibility: Askar 103 APO
• focal length without reducer: 700.4 mm
• focal length with reducer: 420.24 mm
• Exposure without reducer: f/6.8
• Exposure with reducer: f/4.08
• rear thread (camera side): M68x1 / M54x0.75 / M48x0.75
• front thread (extractor side): M68x1
• possibility of installing a filter: yes, 2"
• back focus: 55 mm
• length (without adapters): 98 mm
• diameter: 72 mm

Set elements

• Askar 0.6x full-frame reducer (103 APO)

Guarantee

24 months