When used with selected EF and EF-S lenses, this 12mm extension tube allows much closer focusing- great when trying to fill the frame with tiny subjects. Benefits This 12mm extension tube fits between camera body and the lens, providing a brighter image that the Extension Tube EF 25 II Compact and portable- a great accessory to take when shooting wildlife Maintains electronic contact between lens and body Contains no optical elements Compatibility EF 200mm f/2.8L II USM EF 200mm f/2L IS USM EF 135mm f/2.8 softfocus EF 135mm f/2L USM EF 100mm f/2 USM EF 85mm f/1.8 USM EF 85mm f/1.4L IS USM EF 85mm f/1.2L II USM EF 50mm f/1.8 STM EF 50mm f/1.8 II EF 50mm f/1.4 USM EF 50mm f/1.2L USM EF 40mm f/2.8 STM EF 35mm f/2 EF 35mm f/2 IS USM EF 35mm f/1.4L II USM EF 35mm f/1.4L USM EF 28mm f/2.8 EF 28mm f/2.8 IS USM EF 28mm f/1.8 USM EF 24mm f/2.8 IS USM EF 24mm f/2.8 EF 24105mm f/4L IS II USM EF 24105mm f/4L IS USM EF 2470mm f/4L IS USM EF 2470mm f/2.8L II USM EF 2470mm f/2.8L USM EF 2035mm f/3.54.5 USM EF 1740mm f/4L USM EF 1635mm f/4L IS USM EF 24mm f/1.4L USM EF 24mm f/1.4L II USM EF 20mm f/2.8 USM EF 70200mm f/2.8L IS II USM EF 28300mm f/3.55.6L IS USM EF 28300mm f/3.55.6L IS USM EF 28135mm f/3.55.6 IS USM EF 28105mm f/3.54.5 II USM EF 24105mm f/3.5-5.6 IS STM EF 1635mm f/2.8L II USM TS-E 135mm f/4L Macro TS-E 90mm f/2.8L Macro TS-E 90mm f/2.8 TS-E50mm f/2.8L Macro TS-E 45mm f/2.8 TS-E 24mm f/3.5L II EF 180mm f/3.5L Macro USM EF 100mm f/2.8L Macro IS USM EF 100mm f/2.8 Macro USM EF 50mm f/2.5 Compact Macro EF 800mm f/5.6L IS USM EF 600mm f/4L IS III USM EF 600mm f/4L IS II USM EF 600mm f/4L IS USM EF 500mm f/4L IS II USM EF 500mm f/4L IS USM EF 400mm f/5.6L USM EF 400mm f/4 DO IS II USM EF 400mm f/4 DO IS USM EF 400mm f/2.8L IS III USM EF 400mm f/2.8L IS II USM EF 400mm f/2.8L IS USM EF 300mm f/4L IS USM EF 300mm f/2.8L IS II USM EF 300mm f/2.8L IS USM EF 70200mm f/2.8L IS III USM EF 70200mm f/2.8L USM EF 70200mm f/4L IS USM EF 70200mm f/4L IS II USM EF 70200mm f/4L USM EF 70300mm f/45.6 IS USM EF 70300mm f/45.6 IS II USM EF 70300mm f/45.6L IS USM EF 70300mm f/4.55.6 DO IS USM EF 75300mm f/45.6 III USM EF 75300mm f/45.6 III EF 100400mm f/4.5 5.6L IS II USM EF 100400mm f/4.5 5.6L IS USM EF 200400mm f/4L IS USM Extender 1.4x EF-S 1022mm f/3.54.5 USM EF-S 1585mm f/3.55.6 IS USM EF-S 1755mm f/2.8 IS USM EF-S 1785mm f/45.6 IS USM EF-S 1855mm f/3.55.6 IS II EF-S 1855mm f/3.55.6 IS STM EF-S 1855mm f/45.6 IS STM EF-S 1855mm f/3.55.6 III EF-S 18135mm f/3.55.6 IS STM EF-S 18135mm f/3.55.6 IS USM (nano) EF-S 18135mm f/3.55.6 IS EF-S 18200mm f/3.55.6 IS EF-S 24mm f/2.8 STM EF-S 35mm f/2.8 Macro IS STM EF-S 60mm f/2.8 Macro USM EF-S 55250mm f/45.6 IS EF-S 55250mm f/45.6 IS II EF-S 55250mm f/45.6 IS STM Mount Adapter EF-EOS M