This monocle made from the body of lens Canon 50/1.8 II. The main difficulty encountered by the photographer when shooting mechanical monocles is associated with focusing. Focus should be made on the maximum contour sharpness and not by the maximum contrast. This can be difficult to do. When shooting this monocle such complexity is absent. The presence of his automatic focus mechanism will allow the photographer to focus entirely on the process of light and finding the plot.

The focal length of the monocle 50 mm is suitable for a wide range of subjects and is universal. The monocle has a limitation on compatibility with Canon SLR/DSLR cameras. For best results, when shooting with this monocle, it is necessary to use fine-tuning of autofocus in the camera (this function is not available in all cameras).