Trekking Gadgets

A: Nikon D750 Camera. The workhorse since 2015. Now with the Sigma 24-80 f/2.8 Lens.
B: Laowa 12mm rectalinear wide angle lens. Amazing for wide angle. Kickstarter.
C: Spare Nikon batteries (2). The good thing about a DSLR is batteries last quite long.
D: μUSB Nikon battery charger. I still don't understand why batteries DSLRs bodies cannot charge batteries...?
E: ND and CIR-POL filters, 82mm.
F: Lens cleaning kit.
G: Nikon wireless remote. Helps getting steady shots on a tripod.
H: Trailpix tripod (uses trekking poles as legs) with Gitzo GT1550T mini head and Neewer FXC-25 Arca-Swiss adapter. The lightest combo I could find.
I: Sony RX-100-V. Backup camera and great panoramas with no effort. Almost makes the D750+Sigma obsolete. Maybe they should have stayed at home?
J: Magnetic filter ring adapter for the Sony Rx-100, with C-POL filter. Essential for high altitude.
K: Spare battery in a convenient Sony μUSB charger.
L: Aple SD-Card reader. To browse photos on somebody's iPhone or iPad.
M: Aukey 5-port 54W USB A and Type-C charger. Charge everything at once when you can.
N: HTC Desire. Used as a hotspot and a backup phone with a local SIM. Amazing how long it's been with me...
O: Garmin D2 Bravo. Complete trek logger including ultra precise / sensitive GPS sampling at 1Hz for geo-tagging photos.
P: Garmin charger. Non original (accepts μUSB cable - smaller and lighter).
Q: Head lamp. Ultralight. 70 hours on two coin cells. 5x that long with 4 spare sets.
R: Yolk Solar Paper, 4-panel solar charger. Pumps reliably 5V at 1A+ when attached to a backpack. The lightest available. Kickstarter.
S: 6000mAh powerbank by Innergie. Reliable emergency power. Recharged by Yolk.
T: A set of patches for backpacks, sleeping bags etc.
U: SOG Multitool. Feels very reliable.
V: Double wall mug. I like sipping coffee in the morning.
W: Sawyer water filter with cleaning syringe. One of the lightest water purification options.
X: Sawyer foldable watter bottles. Work in tandem with the filter.
Y: Spork. Could not find a smaller one.
Z: Moleskine paper notepad. When all batteries die. Or when you want a souvenir rubber stamp.