I have a Samsung SCX-4600 and I decided to make a Siemens star out of it using an A4 paper with vector to very high resolution PNG illustrations.
Is it an decent choice? How will it compare to a genuine focus chart of it? I want to use it for sharpness testing with my DSLR.
I also have access to antique KY 19E and Sony UVW100 camcorders with Canon YH13X7.5 lenses. Would my makeshift Siemens star also be adequate for back focus?