Compare cameras

Pentax K-01 vs Sony a5100

The Pentax K-01 and the Sony a5100 side by side, computed from this guide's catalogue.

Which to pick

Pick the Pentax K-01 if you want stabilisation in the body, which steadies every lens. Pick the Sony a5100 if you want more resolution, for cropping and big prints (24.3 against 16.3 MP); a newer model (2014 against 2012), which usually means better autofocus and video; and more lenses made for it in this guide (403 against 68). If you already own Pentax K or Sony E lenses, the camera on that mount saves you buying them again.

Still torn? Ask the guide about the Pentax K-01 and the Sony a5100

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Pentax K-01	Sony a5100
Maker	Pentax	Sony
Mount	Pentax K	Sony E
Sensor	APS-C, 23.5 x 15.6 mm	APS-C, 23.5 x 15.6 mm
Crop factor	1.5×	1.5×
Resolution	16.3 MP	24.3 MPmore detail
Stabilisation	in the bodystabilised	none
Announced	2012	2014
Type	mirrorless camera	mirrorless camera
Lenses in this guide	68 for its sensor	403 for its sensormore lenses

Sensor size

Both sensors drawn to the same scale.

Crop factors: Pentax K-01 1.5×, Sony a5100 1.5×.

What a 50mm frames like

Both have the same sensor size, so a 50mm lens frames the same on each: like 75mm on full frame.

Horizontal angle of view on each.

Lenses

Different mounts (Pentax K and Sony E): a lens for one does not fit the other without an adapter. 7 lens designs in this guide are made in both mounts, mostly from third-party makers.

The Pentax K-01: 68 Pentax K lenses in this guide cover its sensor. The Sony a5100: 403 Sony E lenses in this guide cover its sensor.