Sony A7II sensor review: Mighty mirrorlessThursday January 08 2015 Sensor Review
Sony has updated its original A7 full frame mirrorless hybridcamerain the form of the cunningly named Sony A7II. Despite a number of feature and build quality enhancements, this latest incarnation continues to utilise the same 24.2Mp resolution sensor as its predecessor. With the test results just in from the lab, let’s see how the new Sony A7II ranks in the DxOMark Sensor Scores database.
Enhanced build and image stabilisation
Over a year on from unveiling the World’s first mirrorless hybrid camera to feature a full frame sensor, Sony remain the only manufacturer to have such an option on the market. In fact, whilst they wait for the competition to catch up, Sony has got around to launching a 2nd generation version of their original A7 model.
It’s fair to say the new Sony A7II is only a minor upgrade over its predecessor, but there are a few enhancements that make it more attractive to the professional photographer. These including improving the build quality by removing the plastic front panel to make the Sony A7II chassis all metal, reinforcing the lens mount to protect it from the strain of using heavy telephoto lenses and fitting weather sealing around the main controls to help keep out the elements. Handling has been improved too, thanks to a slightly larger handgrip and repositioning the shutter release button to a more ergonomically friendly location, all of which will be appreciated by photographers shooting over sustained periods.
The most notable boost to the A7II’s feature set however is a new 5-axis image stabilisation system, which Sony claim offers up to 4.5 stops of image stabilisation. That’s more than currently available on full frame DSLRs with Nikon’s or Canon’s lens based VR and IS systems, and has been made possible by Sony adopting a sensor shift mechanism. In a move away from their traditional lens based Optical Stabilisation System (OSS), the new stabilisation system on the A7II moves the sensor across 5 different axes to correct camera shake. This enables image stabilisation even using non-OSS lenses, but if you have a bunch of OSS FE mount glass however don’t panic, the two Sony stabilisation systems will work in tandem on the A7II.
- 24.2Mp 23.9x35.8mm full frame CMOS sensor
- Sony FE lens mount
- 4.5 stops sensor shift image stabilisation
- Hybrid autofocus system with 117 phase detection points
- BIONZ X image processing engine
- XGA resolution 2.4m-dot EVF
- 3.0in tilting White Magic LCD screen