Doing so requires a lens adapter—one for every lens mount and camera body combination you own—which can get expensive fairly quickly. “Dumb” adapters allow the use of the lens in its most primitive form. This means that 3D-printed lens adapters are ideal for older lenses, which make up a huge portion of the used market (and maybe your existing collection). There’s an adapter for (almost) every lensYou’ve just got to find themCredit: Tim Brookes / How-To GeekCredit: Tim Brookes / How-To GeekCredit: Tim Brookes / How-To GeekCredit: Tim Brookes / How-To GeekCredit: Tim Brookes / How-To GeekClose Credit: Tim Brookes / How-To GeekCredit: Tim Brookes / How-To GeekCredit: Tim Brookes / How-To GeekCredit: Tim Brookes / How-To GeekCredit: Tim Brookes / How-To GeekThe first adapter I printed was a simple Canon EF to Sony E, since I primarily shoot on a Sony a6500 APS-C mirrorless. I’ve seen a great number of adapters for both bodies and lenses for Canon, Sony, Nikon, Fuji (M43), and similar.