Conclusion: The Sony Alpha A7S can do some remarkable things. It takes very good stills with its 12.2MP full-frame sensor. Wedding and event photographers should jump on it thanks to its quick response, along with outstanding image and movie quality. But if 4K video and a super-high ISO capability are not high on your must-have list, you’re much better off with the 24.3MP A7.
Pros: Nice extension of the A7 series, Mind-boggling ISOs, Remarkably quiet in Silent Shooting Mode, Includes two batteries
Cons: Really geared for pros, Expensive, No built-in flash, Slow burst mode
Summary: Comparisons are tricky for the A7, since there are no other 24MP ILCs, other than Sony’s discontinued NEX-7 and newly announced Alpha 6000, which we haven’t tested; the only other full-frame ILC is the A7R. Samsung’s NX300, with a 20.3MP sensor, produced Excellent tested resolution at ISO 100—but the A7 offers higher resolution and lower noise through ISO 800. Both cameras earned Excellent ratings in color accuracy, though the Samsung scored a bit higher.
Excerpt: A little over a decade ago, enthusiast photographers were clamoring for an affordable APS-C digital SLR. That dream has long since become a reality, but for some, the dream wasn't big enough. They've been asking for an altogether different -- yet still affordable -- camera. They needed it to have a bigger sensor, and to drop the bulky mirror box of an SLR. Until now, they could choose one or the other.
Excerpt: The Sony Alpha 7 is a camera that has garnered a lot of interest lately and it is clear why. It is arguably one of the cheapest, if not the cheapest, around to house a 35mm full-frame sensor. It’s also a handy mirrorless camera system.
Summary: The Alpha 7 has broken new ground in the full-frame market, in terms of both size and price. Its compact size, broad feature set and very good raw image quality make it a compelling option for those wanting a large sensor. Unfortunately, the JPEGs have many issues, performance and battery life could be better, and the controls would benefit from a rethink.
Pros: Small and well-priced full-frame body, Very good image quality when shooting Raw, Solid build quality, Compatible with a huge range of legacy 35mm camera lenses with no field-of-view crop, Large, high resolution electronic viewfinder, Tilting LCD offers good detail and outdoor visibility, Useful tools, such as focus peaking and zebra pattern (work well with native lenses), Very good video quality, Strong video features: manual controls, audio level adjustment, and unc...
Cons: JPEG quality disappointing compared to peers – crude sharpening, over-aggressive processing and occasional posterization, Autofocus can be hesitant, especially in low light; AF improves when assist lamp is turned off, Auto ISO tends to keep shutter speed at 1/60 sec, often resulting in blurry photos, Limited selection of FE lenses, which are expensive compared to competition, Tools for shooting with third party lenses need improvement, Longer-than-average startup time...
Excerpt: Sony rocked the photographic world when it launched the first full-frame mirrorless cameras, the a7 and a7R. These cameras catapulted the mirrorless market into the forefront of technology for many MILC advocates. But those outstanding specs don't mean anything if the cameras' features and performance don't live up to the hype. Read on to find out if these cameras met our expectations.