The Nikon D3500 has what’s known as an APS-C sensor, which Nikon calls a DX sensor. It’s smaller than a full-frame sensor, and so you need to multiply the focal length by 1.5x. For example, if a lens says it has a focal length of 10mm, when you put it on a D3500, you’ll get a view that’s equivalent to a 15mm on a full-frame camera.
The Nikon Z 5 is a great choice if you're looking for a more affordable full-frame camera. It's one of the best entry-level full-frame cameras on the market—though its relatively low price comes with some trade-offs. Most notably, it can only shoot 4k video with a heavy crop, and its burst rate maxes out at about five fps.
Looking to upgrade D3500 to FX (full frame) I've had my current Nikon D3500 for a few years now and I can confirm I enjoy photography, recently I've been looking into upgrading to a FX (full frame) body. I'd prefer to keep with Nikon since it's been great so far and I already have some FX lenses. After some research online I'm a bit stuck
The Tokina 11-20mm f/2.8 DX is sharp enough to match even the full-frame competitors, and with its f/2.8 aperture, you can certainly also use it to capture beautiful astro/nightscape images. Unlike most full-frame ultra-wide f/2.8 lenses that achieve this angle of view, (equivalent to about 16mm on full-frame) this lens offers the convenience
NIKON D3S + 24-70mm f/2.8 @ 32mm, ISO 200, 1/250, f/8.0. The Nikon 24-70mm f/2.8S is a great lens for photographing full body shots and it does equally well when taking pictures of groups. Additionally, it is one of the sharpest zoom lenses we’ve tested at Photography Life.
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