Photogrammetry is an optical measurement technique which is becoming more accessible to non-photogrammetrists through easy-to-use digital software and hardware. A small number of fundamental considerations are outlined to assist users who may be unfamiliar with photogrammetry to plan photogrammetric measurement, and attention is drawn to a few basic aspects of photogrammetric system design which are crucial to obtaining the desired accuracy and output while ensuring that the technique meets cost and other constraints. Those contemplating the use of photogrammetry for medical purposes with easy-to-use products currently on offer should be aware of the breadth of options available for its implementation. A range of accuracies is available, usually with commensurate costs, but accuracy can in part be controlled by the user. The prospective user should also be aware of options for automated processing, which depend largely on the characteristics of the surfaces being measured. Photogrammetry almost always provides quantitative output, typically appearing as a simple list of numbers, and the conversion of this to useable information is not always simple.