The NANOHA Extension Tube set allows your mirrorless camera to focus close up for photography of small objects. You put these between the camera body and the lens and the result is a dramatic increase in your ability to get tiny objects to fill the picture area. Extremely well made in Japan the tubes perfectly fit your mirrorless camera and all modes of operation are maintained. Extension tubes contain no optics of their own so the high quality of your lens stays the same. The set includes two tubes. One is 10mm and the other is 16mm. Use them individually or in combination to get the distance you need. Combined to 26mm you get an extreme close up capability. For use with Sony Mirrorless Digital Camera Nex Series E Mount Nex-7,nex-6,nex-5r,nex-3n,nex-f3,nex-5n,nex-5c,nex-c3.