Some lens testing target files here. They are PDF, so will download as soon as you click on them.
https://www.canopuscomputing.com.au/Downloadable_Files/General_Photography/USAF.pdf
https://www.canopuscomputing.com.au/Downloadable_Files/General_Photography/USAF_pdml-procedur.pdf
https://www.canopuscomputing.com.au...neral_Photography/Koren_MTF5_Lens_testing.pdf
https://www.canopuscomputing.com.au...al_Photography/Lenstarg_25_5906p_15g_25is.png
https://www.canopuscomputing.com.au...al_Photography/Lenstarg_50_5906p_15g_25is.png
Print on a decent quality 600 dpi laser printer, then use as per instructions in associated procedure file.
Choose your poison ...
https://www.canopuscomputing.com.au/Downloadable_Files/General_Photography/USAF.pdf
https://www.canopuscomputing.com.au/Downloadable_Files/General_Photography/USAF_pdml-procedur.pdf
https://www.canopuscomputing.com.au...neral_Photography/Koren_MTF5_Lens_testing.pdf
https://www.canopuscomputing.com.au...al_Photography/Lenstarg_25_5906p_15g_25is.png
https://www.canopuscomputing.com.au...al_Photography/Lenstarg_50_5906p_15g_25is.png
Print on a decent quality 600 dpi laser printer, then use as per instructions in associated procedure file.
Choose your poison ...