Περιγραφή
The Askar 0.8x full-frame reducer (140 APO) was developed as a dedicated accessory for the Askar 140 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 140 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 (140 APO)
- focal reducer dedicated to the Askar 140 APO astrograph, compatible with cameras and full-frame cameras
- 0.8x multiplicity giving an effective focal length of 784 mm at f/5.6
- can be used with filters with a diameter of 2″
- 55mm back focus
