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Lens IndexPrime - Zoom - Large Format - Anamorphic

Image Circle

• If you know your sensor size in millimeters our IMAGE CIRCLE CALCULATOR will calculate the minimum image circle that will cover your sensor. We've already done this for all the cameras and lenses on this site.
• For a graphical representation of a lens image circle overlaid on a specific camera sensor, check out SENSORSIZES.COM created by cinematographer Jannik Tesch

Diopters - Distance Conversion Chart
Diopter +½ Focus distance on lens scale Actual distance to subject
Infinity 78 ¾"
25 ft. 62 ½"
15 ft. 54 ¾"
10 ft. 47 ½"
6 ft. 37 ¾"
4 ft. 29 ¾"
Diopter +1
Infinity 39 ½"
25 ft. 34 ¾"
15 ft. 32 ½"
10 ft. 29 ¾"
6 ft. 25 ¼"
4 ft. 21 ¾"
Diopter +2
Infinity 19 ¾"
25 ft. 18 ½"
15 ft. 17 ¾"
10 ft. 16 ¾"
6 ft. 15 ½"
4 ft. 14"
Diopter +3
Infinity 13 ¼"
25 ft. 12 ½"
15 ft. 12 ¼"
10 ft. 11 ¾"
6 ft. 11 ¼"
4 ft. 10 ½"
Download Chart Download Link