Reticle Whipple 0.5mm Squares 400 Total

KR-435 glass eyepiece reticle whipple. Whipple 10mm x 10mm. 400 squares total (20x20). One square in 25 squares (5x5). Diagonal = 14.14mm. Labeled horizontal numbers (1-20) and vertical letters (A-T). Available in a variety of diameters, select below when ordering.

Each Large Square = 0.5mm when using 1x objective.
Each Small Square = 0.1mm when using 1x objective.
Lines: Chrome deposition
Chamfer: 0.010" - 0.020"
Flatness: 2 waves or better
Centering: Within 0.005"
Glass Thickness: 1.5mm+/-0.2mm
Surface Quality: 20/10
Parallelism: 2 min.

NOTE: This is a special order product. Please allow 2-3 weeks for delivery. This item is not returnable.