Details
RCF focusers come standard with a 3″ length drawtube. The following part number is for upgrading the drawtube length to 4.6″ at the time of purchase of an RCF focuser.
Product Series
The Reverse Crayford Focuser (RCF) is a light-weight, low-profile focuser with a new revolutionary design - JMI′s low-cost, high-quality answer to plastic focusers. The reverse Crayford design gives zero image shift and zero backlash. (U.S. Patent No. 6,297,917)
Additional Information
| Model | RCFDTUPGRADE |
|---|---|
| Weight | 1.0000 |
