Dörr Intermediate ring set Sony SLR 323021

The Dorr extension tubes 12/20/36mm for Sony are designed to allow a lens to focus closer than the standard minimum focusing distance. When you focus closer, your subject appears larger, making it not only bigger in the viewfinder but also in your images. The Dorr extension tubes are excellent for macro photography, enabling you to convert nearly any lens into a macro lens at a fraction of the cost. The Dorr extension tube is mounted between the camera body and the lens to create more distance between the lens and the film plane. This forces the lens to focus much closer than normal. The longer the extension tube, the closer the lens can focus. The Dorr extension tube set includes three tubes of different lengths: 13mm, 20mm, and 36mm. These can be used individually or in any combination to achieve the desired magnification.