What is a Digital Focus Counter?
The Digital Focus Counter is a low-cost mechanical alternative to the electronic DRO. The three-digit counter display allows 10
turns of the shaft before returning to zero. If you want focusing repeatability with an NGF focuser, SCT (Schmidt-Cassegrain
Telescope) manual focus or MOTOFOCUS, this unit will do the job. It is available for all NGF focusers (both manual and motorized
versions), as a manual unit which replaces the focus knob on 8″ or larger SCTs (not recommended for CCD imaging due to space
limitations and problems with image shift) and as a piggy-back option for most MOTOFOCUS units. (The piggy-back option is
available only at the time of purchase of a new MOTOFOCUS unit and cannot be added later.).
DFC for Meade SCTs
Meade 203SC, 2080, 2120, Gem mounted 2080 / 2120, Basic (2080 / 2120), LX2, LX3, LX5, LX6, LX10, LX50 7″ Maksutov /
8″ / 10″, LX90, LX100 8″ / 10″, LX200 7″ Maksutov / 8″, LX200 10″, LX200 12″,
LX200 16″, LXD55 SC-8, LXD75 SC-8
(Does not fit LX200 GPS systems)
Manual version which replaces the focus knob of the Meade 8″ or larger SCT (non-GPS). (Specify telescope make, model and
year.)
