up: Camera scanning

Some budget pairings could be:
Nikon D7100 + 40mm f/2.8 Micro-Nikkor
Canon 80D + EF-S 60mm Macro
Sony a6000 + Sigma 70mm f/2.8 Macro (or vintage adapted macro)

APS-C

Nikon

Excellent sensors, great macro lens options (especially the 40mm and 60mm Micro-Nikkors), robust build, available on the used market

• Nikon D5300
• Nikon D5500
• Nikon D7100
• Nikon D7200

Canon

Tons of lens options, very available on the used market

• Canon EOS Rebel T7i
• Canon EOS Rebel T6i
• Canon EOS Rebel T5i
• Canon EOS 80D
• Canon EOS 77D
• Canon EOS 70D

Sony

Compact, adaptable to many lenses

• Sony α6000
• Sony α6300
• Sony α6500

Pentax

In-body stabilization, great value, good macro lens lineup.

• Pentax K-5 II
• Pentax K-3
• Pentax K-70

Full Frame

Full-frame cameras are excellent for film scanning, especially if you're scanning 35mm film or want to extract the maximum detail and dynamic range from medium format or slide film. While they're more expensive than APS-C, many used full-frame models are now very affordable and offer huge benefits:

Why Full-Frame Is Great for Scanning:

• Larger pixel pitch = better dynamic range and lower noise
• Full coverage of 35mm film frame (1:1 macro on full-frame = true life-size)
• Better color depth – useful for slides and color negs
• More lens compatibility (native and adapted)

Nikon

• Nikon D810 (recommended as a full frame camera that is available for "cheap")
• Nikon D850
• Nikon D610
• Nikon D750

Canon

• Canon EOS 6D
• Canon EOS 6D Mark II

Sony

Pentax

• Pentax K-1
• Pentax K-1 II

Medium format

Fujifilm

• Fuji GFX 50s
• Fuji GFX 50s II
• Fuji GFX 100
• Fuji GFX 100 II

Phase One

Hasselblad

Nikon D810
Nikon D850