The distance between the locating surface of the lens mount and the image plane. At Optikos, our OPTEST™ MTF Testing System measures flange focal distance among other things. For more information, click on the image below.
![](https://www.optikos.com/wp-content/uploads/2023/10/Optikos_ID_all_2020_web_3_OptikosID_Stacked_noTag_red_rgb_150x150_large-background-96x96.png)
The Optical Engineering Experts
The distance between the locating surface of the lens mount and the image plane. At Optikos, our OPTEST™ MTF Testing System measures flange focal distance among other things. For more information, click on the image below.
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107 Audubon Road, Bldg. 3
Wakefield, MA 01880
USA
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