sinusoidal, cycles of brightness that have well understood characteristics and that are relatively easy to analyse, also numerically (e.g. So what is needed is a type of target that is made from smooth, e.g. Not only are such targets sensitive to alignment (by happenstance) with the sensel grid, also the high spatial frequency edges of the bars will distort the reliable determination of limiting resolution. Especially the types with parallel black and white bars (such as the well known 1951 USAF resolution test chart) are not really suited for testing discrete sampling devices like our digital cameras. There are many types of resolution targets, but they are not all suited for testing digital cameras. It allows to compare Raw converter capabilities (resolution versus artifacts).It clearly reveals a camera's tendency for aliasing!.It's easy to use, no need for exact shooting distances!.It is accurate, and it produces repeatable results!.It's cheap to produce yourself, it's virtually free!. ![]() to test if a newly purchased lens performs well). It can be printed with any reasonable quality (inkjet) printer, and therefore offers a low cost solution for those who need to verify the resolution of their imaging chain (e.g. Given the huge popularity of my Autofocus Microadjustment tool, I thought it might be interesting to also provide a tool to allow testing for resolution.
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