Vello Extension Tube Set for Canon EF Filter Type_Filter Holders It's best adapted to scale-focusing

It's best adapted to scale-focusing wide angle lenses

8 Pan Focus turns your Auto 110 into a fixed-focus point-and-shoot cameras

The Nikon PK-11 is an 8mm extension tube for manual focus F-mount lenses

It mixes 1:100 with water to produce a working solution on a per-tank basis- easy to do with the included measuring syringe

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Vello Extension Tube Set for Canon EF Filter Type_Filter Holders It's best adapted to scale-focusingA set of three extension tubes for Canon EF mount: 13mm, 21mm, and 31mm. 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.