The FE 100mm f/2.8 Macro GM is able to work with Sony's separately available 1.4x and 2x Teleconverters. When used, photographers and videographers will be able to achieve effective focal lengths of up to 200mm for both increased magnification or longer working distances.
- The 1.4x Teleconverter allows for a 2x maximum magnification with an effective focal length of 140mm and an f/4 maximum aperture.
- The 2x Teleconverter allows for a 2.8x maximum magnification with an effective focal length of 200mm and an f/5.6 maximum aperture.
Teleconverters also provide the added benefit of longer working distances when not operating at the lens's minimum focus. This added distance can help photographers more easily set up lighting with small subjects to avoid shadows and other distracting elements as well as allow shooters to work with skittish or sensitive subjects, such as insects, without disturbing them.