Gear. It's not that you need it to make great photo's, but without it's hard to make world class material. And to be honest, I just like great gear :)
Sony A9 - my professional full-frame camera, specially for wildlife.
Sony A7rIII - my backup camera.
iPhone X - the best camera is the one you have with you. And I always have my iPhone with me.
Sony 24-70mm f4 - the basic lens, but not used very often.
Sony 100-400mm f4.5-f5.6 - this lens is a beast. Most of my wildlife pics are shot with this great lens.
Sony 12-24mm f4 - go extra wide. Ideal for cities, abandoned places and architecture.
Sony 70-200mm f2.8 - with this extra reach and great aperture I'll use it mostly in theaters and concerts.
Sony 90mm Macro f2.8 - my most used lens. Great for macro's and portraits.
Gitzo Mountaineer - ‘all-purpose’ carbon tripod. Mostly used for macro and wildlife.
Gitzo Monopod - I use this light monopod for hiking trips.
Gitzo Traveler - Extra small and light tripod. Ideal to be flexible during urbex trips and holidays.