Nikon TC-14E II filter holder The Kirk L-bracket for the

The Kirk L-bracket for the Nikon D7500 fits The Nikon D7500 and that’s it- it’s won’t fit any of the other 7xxx series

but nothing larger

The Hasselblad Tripod Quick Coupling 2 attachment can be mounted to most tripod heads

the only aperture is f11

but decent for an entry level DSLR

Nikon TC-14E II filter holder The Kirk L-bracket for theThe Nikon TC 14E II is an autofocus teleconverter designed for select Nikon AF S telephoto lenses (here's Nikon's compatibility list). Provides a 1. 4x focal length boost, costs about a stop of light. One of Nikons most widely compatible teleconverters, this TC 14EII is in excellent condition, with only light wear.