Any experienced photographer knows great work doesn't come from great gear, but how you USE your gear. While this is 100% true, it's still important to find the camera and lenses that you love and allows you to create the kind of work you want to.
Pictured above is the gear I use for all of my portrait sessions. Yup, that's it! Just my D750, 35 1.4, and 85 1.8. Below I'll talk more specifically about what kind of shots I use each for, what I like or don't like about each, and what's on my radar to add. But first, let's chat about backups. If you are taking paying clients and running a businesses, you NEED to have backup cameras and lenses. Even the best gear being used by the best user can (and will!) fail occasionally, and you need to be prepared in case that happens. I have a D7200 and various DX lenses as my backup, and I know I can produce the same quality work with that setup if my 750 ever fails.
Okay, now into the good stuff.
The D750 is an absolute workhorse of a camera. The dynamic range is incredible and it performs exceptionally well in low light situations. Since upgrading from the 7200, I have yet to find anything about this camera I don't love. I always shoot underexposed to avoid blowing out the highlights, and with the 750 I know I can bring up the shadows a ridiculous amount without noise to achieve a properly exposed image. The price of this camera is also amazing for the quality. Only costing around $1500 depending on where you get it, the 750 is a super affordable full frame that many pros choose instead of Nikon's more expensive pro level bodies.
The Nikkor 85mm 1.8 is my go-to lens for sessions. It stays on my camera for 80% of the shoot, but I definitely have a love/hate relationship with it. I LOVE the compression and gorgeous bokeh it produces, and it handles backlighting extremely well. I use it for everything from wide shots to tight head shots. 85mms produce super flattering portraits, and when the focus is spot on, the sharpness is perfect. BUT. I've noticed only about 1/3 images are actually in focus with this lens. It misses focus pretty often, so I end up with a lot of soft images in between the sharp ones. Eventually I plan on upgrading to either the Nikkor 85 1.4 or the Sigma ART because of this issue. But in the meantime, it's still my most used lens and I love the images I'm able to produce with it. Below are a few of my favorite images shot with this lens.
Next, the Nikkor 35mm 1.4. I absolutely love this lens. It's always tack sharp, produces gorgeous creamy bokeh, and never fails me in strong backlit situations. I LOVE the distortion it creates, and when used for close up shots, that distortion makes you feel like you're there in real life. This focal length brings images to life, so whenever I want a shot that's more close up with a strong feeling or emotion, I reach for this lens. I really can't say enough good things about it. Below are a few of my favorite images taken with it.
Not pictured is the Nikkor 70-200 VR II that I just bought as my new sports lens. I haven't really been able to put it to the test yet, but I'm really excited about it! The next lenses I have my eye on are the Nikkor 58 1.4 and the Sigma 50 ART. Both of those lenses produce really unique images, and I hope to add one of them to my collection soon! Before I owned the 85mm, I used the 35 and Nikkor 50mm 1.4. To be honest, I really hated that 50mm. The focus was always soft, and it I never really got excited about the images I produced with it, but lots of people love that lens so it's really all personal preference. If you're looking to add a new lens to your gear, the absolute best thing to do is to rent the lens first to test it out and form your own opinions.