Kenko DG Extension Tube Set for Canon EF/EF-S  type_Light Modifier Suitable for mirrorless cameras or

Suitable for mirrorless cameras or small-to-mid-size DSLRs

though the image makes it look a bit reddish (blame a weak IR filter on our camera) Internal dimensions of the insert are approximately are 7x22x26cm

It's also been adjusted to take standard 1

with good image quality and a "macro" mode for closer-range shooting

it may also fit others

Kenko DG Extension Tube Set for Canon EF/EF-S &nbsptype_Light Modifier Suitable for mirrorless cameras orA set of three extension tubes for Canon EF EF S mount: 12mm, 20mm, and 36mm. These tubes have the electronic contacts necessary to maintain autofocus and autoexposure capabilities. If you're curious about dabbling in macro work, this is an inexpensive way to get started.