Sony A7S III
Sensor size, crop factor & field of view
▸ See its field of view
Sensor35.6 × 23.8 MM
Crop factor1.01×
Sensor classFull Frame
Native mountE
Aspect modes3:2 · 16:9
Released2020
Low-light full-frame workhorse.
On the 1.01× Full Frame sensor, every lens frames tighter than its marked focal length. Tap a focal to see the exact build in the simulator.
Shopping for this body? We wrote a hands-on guide with the gear that actually earns its place. Read the A7S III buyer guide →
Is the Sony A7S III full frame?
Yes — it uses a full-frame 35.6×23.8mm sensor, so its crop factor is 1.01× (effectively 1×).
What is the crop factor of the Sony A7S III?
1.01×, derived from its 35.6×23.8mm sensor diagonal against a full-frame 43.27mm diagonal.
What does a 50mm lens look like on the Sony A7S III?
A 50mm lens frames like a 51mm lens would on full frame (50 × 1.01). See it live in the simulator.
Can I adapt other lenses to the Sony A7S III?
Yes. focalcomp's registry resolves EF, LR, F, M42, M, CY, FD, MD, OM, K, PL, AR glass onto its E mount via adapters and speed boosters.