Nikon EN-EL15 Li-20 batteries:
$32 each. I bought a bunch of Nikon-brand batteries when I was using
the D810 and D7200 with battery grips, and D7500. Now I own only the
D850 and have a few hardly-used batteries to spare. I can sell two or
three of these. They are the Li-20 version compatible with the latest
Nikon D5100 body and 18-105mm VR; 55-200mm zoom. Body: $250; 18-105 VR: $160; 55-200mm: $110. All three for $475. Body includes copy of my book with your camera pictured on the cover and inside. Actuations unknown, but wife and daughter used on a few trips.
Sony a5000 BODY. $175. Beginner E-mount camera body. Makes a great spare body, or a good entry-level model for someone exploring mirrorless and who doesn't need an EVF (you compose on the LCD.) Actuations unknown, but my wife used it for two or three trips before graduating to the a6000.
Nikon AW100 underwater camera. $180.00. Nice little 16MP point-and-shoot all-weather camera, with 28-140mm (equivalent) zoom, GPS, and 1080p video. I used it for shooting in springs in Florida. But I also have the Nikon 1 J4 with UW housing and several interchangeable lenses and don't need two underwater cameras, so you can buy this one. Or, I could figure out a price for the J4 if you prefer. Actuations unknown, but both were only casually used.
Micro-Nikkor 60mm f/2.8D AF. $275. This supplanted my 60s-era 55mm f/3.5 Micro-Nikkor a while back, and now I've moved up to the G version.
Tamron 2X SP AF Tele-converter (7E) for Nikon. $20.00. I got this for use with some non-Nikon lenses, but never got around to trying it out. I prefer the Nikkor TC models, so this one needs to go.
Tamron 500mm f/8 SP Macro catadioptric (mirror) lens,
in Adaptall-to-Nikon mount. $100. This is a manual focus lens that can
be used on Canon, Sony, etc. cameras with an Adaptall adapter, or other
generic adapter. Super compact design (Google it.)
SOLD: Sigma 170-500mmmm f/5-6.3 APO aspherical autofocus telephoto zoom for Nikon. $300.00Kirk Arca-Swiss-compatible camera plates. $30.00 each. I have six, each designed to fit one of these cameras: Nikon D800/D810, Nikon D700, D2x, D3/D3x, D7100, D40/D60
M. Zuiko Digital ED 40-150mm f/4.0-5.6 R Micro Four Thirds zoom. $90.00. I've got two of these for my two Panasonic MFT cameras. This one's extra.
SOLD: Sony a6500 body. $975.00.
Sells for close to $1400 new. I took this APS-C E-mount camera to
Italy last October and used it to shoot birds in Florida a couple months
ago. It's still like new, probably with a few thousand actuations.
Joinrun Smartcharger S4 $19.00.
Has individually-controllable four slots and can charge AAA, AA, C, and
other size batteries. Choose 300 mA or 600 mA charging; battery type
and polarity detector, other features. I paid $30 for this because you
can connect it to your car's 12V cigarette lighter socket (adapter not
included, but any works.) Very nice for keeping electronic flash
batteries charged. But now I have an inverter, so I just use my
LaCrosse smart charger and don't need t his one.
CB-Junior Flash Rotating Bracket: $35.00.
Generic 70mm Arca-Swiss-compatible camera plates. $14.95.
I bought a bunch of these to fasten to various cameras permanently so
they'd be tripod-ready, but ended up with about a dozen more than I
Canon Powershot N. Teensy point-and-shoot.
$150.00. 12MP, 28-224mm equivalent zoom. Got it for my wife who wanted
the smallest camera possible for her trips. It's the smallest
feature-rich camera I've ever seen, but she ended up going mirrorless
because she found the controls quirky. It's really a great camera;
Google it, as it might be what you are looking for in a pocket shooter.
Sony NP-FZ100 batteries.
These fit in the a7 III series (a7 III, a7R III) and a9. I bought
about eight of these for $78 each when they were hard to find. I also
bought one of the Wasabi BTR-FZ100-WP third-party batteries to try
out. All these batteries last a lot longer than I expected, so I've
got too many of them. I will bundle one of the Sony batteries with the
Wasabi battery for $110.00.