I use top of the line industry standard equipment from Nikon.
My primar Bodies are the Nikon D810 and Nikon D600. Both have full frame sensors with very high megapixels.
My go to lenses are the prime Nano Glass AF-S Nikkor 85mm 1:1.4G ED and the prime Nano Glass AF-S Nikkor 24mm 1:1.4G ED. These lenses are fast, sharp and just flat out amazing. With the nikons high ISO capabilities and these extremely wide open apertures I am basically able to shoot in the dark. That doesn't mean I don't whip out off camera flash and light reflection though.
Secondary lenses are the AF-S Nikkor 70-300mm 1:4.5-5.6G and Samyang AE 14mm 1:2.8. Both of these lenses are used much less but allow me to get dramatic with lens compression and wide able scenery.
I love using natural light and that is why I use a light reflector that can produce some stunning results.
Another fascinating look I use comes from off camera flash (usually back lit). With that being said I have three flashes that I use with my primary flash being a Nikon SB-910 Speed light.
A really good tripod is ESSENTIAL for creating some interesting visuals of light trails, long exposures and motion blurs that is why I use the state of the are Manfroto travel tripod. This piece of equipment is extremely well engineered.
Finally, my latest purchase was an underwater housing allowing to bring all my equipment into the deep blue. This has opened me up to a new world of portraiture potentials!