Sony Alpha 5100 review
September 17, 2014
Overall Rating:
Sony Alpha 5100
Pros:
- - Superb resolution and autofocus speed
- - Lightweight, but tough with a compact body
- - Advanced video filming capabilities
Cons:
- - Only six frames per second continuous shooting
- - Touchscreen limited to taking pictures only
- - No input for external microphone
Manufacturer:
Manufacturer: SonyWith 24.3-million-pixels, 179-point hybrid autofocus and advanced video, is the Sony Alpha 5100 the most high- tech, entry-level APS-C camera yet? In our Sony Alpha 5100 review Jon Devo finds out
Resolution, dymanic range and noise
Resolution

From our test charts, the Alpha 5100 resolves around 3100 l/ph at ISO 100, which is much as we’d expect for a 24.3-million-pixel sensor with a low-pass filter. Resolution drops progressively as the sensitivity is increased and noise reduction comes into play, to around 2500 l/ph at ISO 1600 and 2000 l/ph at ISO 25,600.
Dynamic range

As we’d expect, the Alpha 5100 gives essentially identical results to the Alpha 6000. At ISO 100, it offers a very respectable 12.2EV range, which gives plenty of scope for extracting more shadow detail from raw files. At ISO 1600, it’s still very respectable at over 9EV, but at higher sensitivities, increasing shadow noise reduces the range.
Noise

Low-ISO images are extremely clean, but luminance noise starts to creep in at ISO 800 and above. Both chroma noise and noise reduction artefacts become increasingly visible at higher sensitivities, with ISO 6400 and higher looking very noisy indeed, and best used only when absolutely necessary. In practice, ISO 1600-3200 enabled us to use fast-enough shutter speeds to freeze fast-moving subjects in low-light conditions.

