Mirrorless · From 2010
Sony introduced the E-mount in 2010 on its NEX-3 and NEX-5, small APS-C cameras, and in 2013 took it full frame with the A7 and A7R. Its 18 mm flange distance, much shorter than the 44.5 mm of Sony's older A-mount, leaves room for an adapter for almost any SLR or rangefinder lens. Sony published the mount specification to third-party makers in 2011, so Sigma, Tamron, Samyang, Viltrox and others build native E-mount lenses. Older A-mount lenses fit through Sony's LA-EA adapters.
APS-C E-mount lenses don't cover a full-frame sensor. On an A7-series body the camera can crop to APS-C automatically, at a big loss in resolution.
8 cameras we cover.

Sony · Mirrorless
Full-frame 24.3 MP · Sony E mount · 2014
$410–$650 typical ask
174 on eBay

Sony · Mirrorless
Full-frame 24.2 MP · Sony E mount · 2018
$950–$1,225 typical ask
187 on eBay

Sony · Mirrorless
Full-frame 33 MP · Sony E mount · 2021
$1,625–$2,125 typical ask
151 on eBay

Sony · Mirrorless
500K ratedFull-frame 42.4 MP · Sony E mount · 2017
$1,000–$1,300 typical ask
189 on eBay

Sony · Mirrorless
Full-frame 61 MP · Sony E mount · 2019
$1,600–$1,975 typical ask
132 on eBay

Sony · Mirrorless
APS-C 24.2 MP · Sony E mount · 2019
$650–$950 typical ask
219 on eBay

Sony · Mirrorless
APS-C 24.2 MP · Sony E mount · 2019
$800–$1,050 typical ask
192 on eBay

Sony · Mirrorless
Full-frame 24.2 MP · Sony E mount · 2020
$1,050–$1,325 typical ask
190 on eBay