CDK1000 Backfocus Diagram by planewaveinstr | Sep 28, 2020 | 0 comments Version Download 174 File Size 0.00 KB File Count 0 Create Date September 28, 2020 Last Updated April 24, 2025 Download Description Attached Files The CDK1000 has a backfocus of 11.302" with the focuser racked all the way in (focuser racks out 1.3" when fully extended). With the CDK1000 to SecureFit adapter (10003600 ) the remaining backfocus is 8.653". Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.