Kenko Extension Tube Set for Canon EF format_17.5mm This is a nice ultrawide

This is a nice ultrawide lens with a fast f4 constant aperture and an image stabilizer for steadier shooting- yeah

This Nikon C-PL1L is a drop-in circular polarizing filter for select Nikon supertelephoto lenses

and the interior lining is vinyl

glass has some dust

Makes a great portrait lens

Kenko Extension Tube Set for Canon EF format_17.5mm This is a nice ultrawideA set of three extension tubes for Canon EF 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.