Often I have mention to test your own lens and use a target ... this is as good as it gets. The chart is mounted on a heavy mat with wood supports behind. In the film days you needed a microscope to take full advantage today is real easy. Can't remember the supplier but came from Seattle, might be able to find online. btw its fairly large about 36 inches across.
A substitute would be easy unless you want to test corner sharpness, colors etc Image made with a point and shoot
Don't take blanket statements and test yourself !!!!!!
For accurate results, it's important to have the camera sensor exactly parallel to the target. Here's how to do it. Place a flat mirror over the center of the target, then align the camera so that the mirror image of the lens is exactly centered in the viewfinder. It helps to have someone else hold the mirror flat against the target, then remove it when it's time to make the test photos.
Great advice Bill btw this was set up on a wall and left there then the camera leveled ... btw about the only thing wrong with testing is what I call paralysis by analysis :)
Thanks for posting the chart. I was talking to both Bill and Kerry about zoom lens ratios and I appreciate the testing material. Each lens can be reviewed for its strengths and weaknesses.
Very good Mr. Forns,
It brings back memories from the film days...very good advise given...this is a valuable tool for our BPN brothers and sisters...:):cool:
Resolution Chart
