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Main
Model
Price
Advantages
PHOTOGRAPHY FEATURES Built-in flash: Yes
PHYSICAL Weight (inc. batteries): 177 g (0.39 lb / 6.24 oz)
Main
Model
Price
Advantages
SENSOR Effective pixels: 42 megapixels
SENSOR Max resolution: 7952 x 5304
SENSOR Sensor size: Full frame (35.9 x 24 mm)
SENSOR Sensor photo detectors: 44 megapixels
IMAGE ISO: Auto, 100-32000 (expands to 50-102400)
IMAGE Image stabilization: Sensor-shift
PHOTOGRAPHY FEATURES Minimum shutter speed: 30 sec
PHOTOGRAPHY FEATURES Maximum shutter speed: 1/8000 sec
PHOTOGRAPHY FEATURES Aperture priority: Yes
PHOTOGRAPHY FEATURES Shutter priority: Yes
PHOTOGRAPHY FEATURES Manual exposure mode: Yes
PHOTOGRAPHY FEATURES External flash: Yes (via hot shoe or flash sync port)
SCREEN / VIEWFINDER Articulated LCD: Tilting
SCREEN / VIEWFINDER Screen size: 3″
SCREEN / VIEWFINDER Screen dots: 1,440,000
SCREEN / VIEWFINDER Touch screen: Yes
SCREEN / VIEWFINDER Viewfinder type: Electronic
PHYSICAL Battery Life (CIPA): 650
Summary
The Alpha a7R III maximum resolution of 7952 x 5304 pixels (42 megapixels) is better than the Coolpix W100 highest resolution of 4160 x 3120 pixels (13 megapixels). The Alpha a7R III is equipped with larger sensor than the Coolpix W100: Full frame (35.9 x 24 mm) versus 1/3.1' (4.7 x 3.5 mm). It is the most significant difference between these models because large sensor allows the camera owner to capture pictures of the better quality. The Alpha a7R III offers a wider ISO range of 100-32000 in compare with 125-1600 ISO range of the Coolpix W100. This ISO numbers allow you to capture better pictures in low light situations. The Alpha a7R III provides image stabilization which will help you to capture clearer photos when he or she has naturally shaky hands.
The Sony Alpha a7R III has tilting LCD which will allow the camera owner to capture photos from any interesting angle. The Alpha a7R III display is better as it has more screen dots 1,440,000 in compare to 230,000 dots of the Coolpix W100 display. The higher dot count display is better for reviewing pictures on your camera. The Alpha a7R III is produced with Yes inch touch screen which is larger than No inch display of the Coolpix W100 The Alpha a7R III has better slowest (30 seconds) and maximum (1/8000 second) shutter speeds.
The Coolpix W100 is produced with built-in flash. The Sony Alpha a7R III supports external flash. An external flash provides superior control over the exposure and lighting of the subject in dim light or in bright light situations where the photographer needs to fill-flash. The Alpha a7R III battery life is better than the Coolpix W100 battery life. According to CIPA standards you will be able to produce 650 photos with the Alpha a7R III and only 220 with the Coolpix W100. The Coolpix W100 weighs 177g which is 480g less than the weight of the Sony Alpha a7R III.
Taking into account the above differences the Alpha a7R III becomes the best buy. Check the lowest price on Amazon