Camera Test: Sony A7R II

Camera Test: Sony A7R II Welcome to a Laptop AC Adapter specialist of the Sony Ac Adapter
When Sony first announced the original Alpha 7R, our 2013 Camera of the Year, its 36.4MP full-frame sensor had the most pixels ever used in the Alpha line. Now, while Canon holds the title for the most pixels on a full-frame 35mm sensor with its 50.6MP EOS 5Ds, Sony has upped its game to 42.4MP in the A7R II.
Naturally, it wouldn’t be like Sony to stop there. This model also sports the first full-frame back-side illuminated (BSI) sensor in a consumer camera. By putting the sensor’s circuitry on the back, there’s more room for the photodiodes that collect the light, and potentially less noise at higher ISOs. With sensitivity settings up to ISO 102,400, the A7R II ($3,198, street, body only) aims to push that potential as far as it can.
One of the biggest complaints about the original A7R with adapter like Sony PCGA-AC16V AC adapter, Sony PCGA-AC19V1 AC adapter, Sony VGN-FW350 AC adapter, Sony VGN-NW100 AC adapter, Sony VGN-S460 AC adapter, Sony VGN-SZ390 AC adapter, Sony PCGA-AC51 AC adapter, Sony PCGA-AC71 AC adapter, Sony VGP-AC19V9 AC adapter, Sony PCGA-AC19V1 AC adapter, Sony PCGA-AC16V6 AC adapter, Sony VGP-AC19V10 AC adapterwas the vibration caused by the shutter mechanism. Sony redesigned it for the A7R II and added an option called Silent Shutter that eschews the mechanical shutter altogether for a vibration-free capture. This assumes that you have your camera mounted on a tripod, are triggering it through the built-in Wi-Fi, and that whatever you have the tripod placed on is free of any vibration.
Shooting handheld or on a tripod on a shaky floor? The A7R II also has the same five-axis image stabilization system that Sony includes in the A7 II and the just-announced A7S II. Another improvement: The camera’s new image sensor-based autofocus system boasts 399 embedded phase-detection points and claims to be 40 percent faster than the one in the A7R.
As super cameras go, this one looks super-duper on paper. That’s why we ran it through the Popular Photography Test Lab and took it out in the field to see how it measures up to the other cameras we’ve put to the test.
In the Test Lab With oodles of pixels, accurate colors, and well-controlled noise at lower ISOs, the Sony A7R II easily earned an Excellent rating in overall image quality from ISO 50 through ISO 800 in our lab tests. The camera barely achieved an Excellent rating in color accuracy with an average Delta E of 7.9 that puts it just below our cutoff of 8 in this test (lower scores here are better).
While we expected that Canon’s 5Ds would beat this Sony in our resolution test, thanks to the EOS sensor’s extra pixels, it did so only by 180 lines. The A7R II captured 4000 lines per picture height at ISO 50. In the case of both cameras, we ran the test using the mechanical shutters. As we always do with DSLRs, the Canon was in mirror lock-up mode to avoid vibration due to mirror slap. Sony’s A7R II, a mirrorless interchangeable-lens compact (ILC), didn’t need such accommodation, of course.