It's not the gear, but how you use it that matters. However, gear has its place. Under most circumstances you don't need the most sophisticated or expensive camera & lens to take good photos, but your camera support system is something you should never compromise on. I’ve learned the hard way that uncompromising, rock-solid supports are a must, especially for landscape and telephoto work.
I shoot with Canon's EOS 5D Mark IV, EOS 5D Mark III, EOS 7D Mark II, EOS 7D, and EF L-series glass, except that I use Samyang, Rokinon, and Zeiss wide-angle lenses for low light landscapes and star photography. I have numerous lenses, but occasionally will borrow glass from LensRentals.com. For infrared work I use a Canon 50D super color IR conversion by Life Pixel, and recently started shooting the stars with a full astro-conversion 5D Mark IV sensor by Spencer Camera.
My favorite lenses are Rokinon's SP 14mm f/2.4, Rokinon's 24mm f/1.4 ED AS IF UMC, Zeiss' Otus 28mm f/1.4, Tamron's SP 15-30mm f/2.8 USD Di, and Canon's 24-70 f/2.8L II USM, 24-105 f/4.0L IS USM, 70-200 f/2.8L IS II USM, and 300 f/2.8L IS II USM. For in-studio macro work requiring 1x or greater life-size reproduction, I use Canon's MP-E 65mm f/2.8 1-5x Macro lens, and when afield use the EF 100mm f/2.8L Macro IS USM, or EF 180mm f/3.5L Macro USM depending on the bokeh I require. For long lens work I tend to use my 300mm f/2.8L with 1.4x and 2x tele-extenders, especially when I’m unable to borrow bigger glass. Much lighter than carrying around a 600 f/4L!
My base support is the excellent Gitzo GT5542LS Systematic Tripod. The finishing touches are obtained with Really Right Stuff's leveling bases and Really Right Stuff BH-55 full-sized ballhead, matched with Really Right Stuff’s PCL-1 Panning Clamp and other accessories for panoramic work; and ProMedia Gear's Tomahawk Ballhead Gimball Attachment for telephoto work when I don’t want to carry around a dedicated gimbal head. When using focal lengths beyond 600mm, I will deploy my Really Right Stuff Long Lens Support Package with the BH-55 ballhead or the impeccably good Really Right Stuff PG-02 Full Gimbal Head. When more portability and lighter weight is needed for short- to medium-telephoto work, I use the discontinued Manfrotto 680B monopod outfitted with the RSS MH-02 Monopod Head.
I occasionally use a mobile device known as CamRanger to assist shooting unique situations and for maco & close-up focus stacking. My favorite mobile photography apps include PhotoPills and VellaClock for planning star photo shoots; and OptimumCSP, TrueDOF-Pro and FocusStacker for iOS devices developed by George Douvos.
I do my own post-processing using predominantly Photoshop Lightroom (basic exposure adjustments) and Photoshop CC (exposure blending, luminosity masking, panorama stitching, and depth-of-field stacking), but also use Helicon Focus (depth-of-field stacking) and PTgui (panorama stitching) when needed. My hardware platform is Apple’s Mac Pro (in studio) and a 2009 17" Macbook Pro (while traveling) with external and portable high-capacity storage solutions by G-Technology. I use Lexar Professional UDMA 7 CF Cards for recording imagery in camera. For simple and quick on-the-fly backup in the field, I use a NEXTO portable, battery-powered device. When requiring remote backup & editing capability without a laptop in the field, my GNARBOX is an indispensable tool.
To carry my gear I've used several different backpacks & bags over the years, but my most frequently used all-around, go to pack is F-stop's Tilopa Mountaineering Camera Backpack.....it's almost perfection for what and how I shoot. If I don't need much additional gear when packing a long lens, I use my Tamrac Super TelePhoto Lens Pack. These two packs are comfortable, even when packed to the hilt. If I need ultra-rugged protection for my gear when traveling, I use various Pelican protector cases.