I made a focus chart to test parfocal lenses.

kerrigan

Well-known member
Here’s a photo of a focus chart (ver 1.02) I’m making to check if my lenses are parfocal.
It uses my computer screen and a target taped at 45 degrees.


The system works, but I'd like to improve it... so I'm posting on a few forums.
If anyone with graphic skills wants to help... please write.




When I'm finished refining the chart, I’ll post a download here:
http://fs700user.com/FS700user.com/Lenses.html


Kerrigan ichart.jpg

Bill Kerrigan bill@kerrigan.ca
http://www.kerrigan.ca



 
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