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Main
Model
Price
Advantages
SENSOR Effective pixels: 42 megapixels
SENSOR Max resolution: 7952 x 5304
SENSOR Sensor photo detectors: 44 megapixels
IMAGE ISO: Auto, 100-25600 (expands to 50-102400)
IMAGE Image stabilization: Sensor-shift
VIDEOGRAPHY FEATURES Resolutions: 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
OPTICS & FOCUS Number of focus points: 399
OTHER FEATURES Timelapse recording: Yes (via downloadable app)
Main
Model
Price
Advantages
SCREEN / VIEWFINDER Screen dots: 1,230,000
PHYSICAL Weight (inc. batteries): 474 g (1.04 lb / 16.72 oz)
PHYSICAL Battery Life (CIPA): 340
Summary
The Alpha 7R II maximum resolution of 7952 x 5304 pixels (42 megapixels) is better in comparison with the Sony Alpha 7 maximum resolution of 6000 x 4000 pixels (24 megapixels). The Alpha 7R II has image stabilization which will allow the camera owner to take blur-free photos when he or she has naturally shaky hands. The Alpha 7R II has more number of focus points in compare with the Sony Alpha 7: 399 vs 117. More number of focus points means less risk of losing focus lock while following a moving object.
The Sony Alpha 7 screen is better as it offers more number of screen dots 1,230,000 in compare to 1,228,800 dots of the Alpha 7R II display. The higher dot count screen is better for reviewing pictures on your camera.
The Sony Alpha 7 battery life is better than the Alpha 7R II battery life. In accordance with CIPA standards the camera owner will be able to take 340 shots with the Alpha 7 and only 290 with the Alpha 7R II. The Alpha 7 weighs 474g which is 151g less in comparison with the weight of the Alpha 7R II.
Taking into account the above differences the Sony Alpha 7R II will be the best choice. Check the lowest price on Amazon