What photographer would not brag about how sharp their lens is?

How to read USAF 1951 Chart? I stumbled upon this article, you may find it handy too. https://www.optowiki.info/faq/how-to-read-an-usaf1951-target/

"How to read an USAF1951 target?

USAF-1951 test charts (also called USAF-1951 test targets) get their name from the designers and the design year: “United States Air Force 1951”. The targets are available in various finishes , for example chrome on glass.
The targets consist of “groups” of 6 “elements” each. The group numbers at the top of the group, the element numbers are located at the sides of the groups.

Each element consists of three horizontal and three vertical bars. The camera is said to “resolve” a chart element, if the horizontal and the vertical bars can still be recognized as three distinct bars und don’t blur into one another...".
Btw, for "Vlads test target" the resolution chart is as follows. Just remember that after you capture the negative with a digital camera and start reviewing which group-element is resolved, you are actually assessing how good your digital camera resolves film target. If you Group 0 Element 2 is resolved in your digital capture you may say something like "my scanning rig can resolve 62 line pair per mm of the film original" .

You may compare the result and report your findings by adding entries to the community database (kudos to  David Warner)  : 

Add your data by filling out the entry form at https://airtable.com/shrS2AIpbQB27hSJq?fbclid=IwAR0vuJ9U13VbSzdYoQ9faJaX6J2q7akBAoiEcfjwhVbc2STNgvnILf9sHTc


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