The dedicated Apertura Field Flattener will allow one to achieve pinpoint stars to the
edges of the field of view. This field flattener supports full frame cameras and is
adjustable so that the user can achieve perfect backfocus when using a range of
different cameras/accessories in their imaging train. This field flattener features m48
male threads on the camera-side, and m54 male threads on the telescope side.
field flattener
Corrected imaging circle of field flattener: Full
frame
Allows for 2” filter (see mechanical drawing)
Field flattener backfocus requirement: 58mm
(see mechanical drawing)
The field flattener requires 58mm of backfocus.
Adjust field flattener to 3mm for standard 55mm
backfocus requirements.
