Post by Ding Carpio on Feb 19, 2008 11:49:31 GMT
Here's a link for a focus test chart. Useful for testing if your lens/camera has front/back focusing problems.
focustestchart.com/focus21.pdf
I actually printed the chart and used it at JT Photoworld when I bought my Sigma 10-20. We detected a slight backfocus (if I remember right) and Jerome was happy to recalibrate the lens for me right there.
focustestchart.com/focus21.pdf
I actually printed the chart and used it at JT Photoworld when I bought my Sigma 10-20. We detected a slight backfocus (if I remember right) and Jerome was happy to recalibrate the lens for me right there.