Nikon 18mm f2.8D AF Nikkor format_Something Else You can use them together

You can use them together or apart

It's got built-in Arca-style rails for tripod mounting and a battery door cutout so you can change the battery and SD card without removing the grip

unless you're an ichthyologist

which mounts to the rear of the reversed lens and provides it with a 58mm filter thread

Protective filter

Nikon 18mm f2.8D AF Nikkor format_Something Else You can use them togetherThis Nikon 18mm f2. 8D AF Nikkor is a full frame ultrawide lens with excellent image quality and a fast f2. 8 aperture. A uncommon lens Nikon made under 8000 of these the 18mm is distinguished from the similar 20mm f2. 8 by an aspherical element (and a slightly wider field of view, of course) In excellent condition, with clean glass and good function. Includes HB 8 lens hood.