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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 Boosted ISO (minimum): 50
IMAGE White balance presets: 10
PHOTOGRAPHY FEATURES Maximum shutter speed: 1/8000 sec
PHOTOGRAPHY FEATURES Continuous drive: 10.0 fps
SCREEN / VIEWFINDER Screen dots: 1,440,000
OPTICS & FOCUS Number of focus points: 425
PHYSICAL Battery Life (CIPA): 650
Main
Model
Panasonic Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II)
Price
Advantages
PHOTOGRAPHY FEATURES Minimum shutter speed: 60 sec
PHOTOGRAPHY FEATURES Built-in flash: Yes
PHYSICAL Weight (inc. batteries): 426 g (0.94 lb / 15.03 oz)
Summary
The Alpha a7R III maximum resolution of 7952 x 5304 pixels (42 megapixels) is better in comparison with the Panasonic Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II) maximum resolution of 4592 x 3448 pixels (16 megapixels). The Alpha a7R III is produced with bigger sensor compared to the Panasonic Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II): Full frame (35.9 x 24 mm) versus Four Thirds (17.3 x 13 mm). It is the most significant specification of this model because large sensor allows the photographer to make pictures of the higher quality. The Alpha a7R III has a wider ISO range of 100-32000 in compare with 200-25600 ISO range of the Panasonic Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II). Such ISO numbers let the camera owner to make better pictures in low light conditions. The Alpha a7R III provides more number of white balance presets - 10. This specification gives the photographer more control over colour. The Alpha a7R III offers more focus points in compare with the Panasonic Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II): 425 vs 49. More focus points means more convenience when attempting to focus on objects that are not centred.
The Alpha a7R III display is better as it has more screen dots 1,440,000 in comparison to 1,040,000 dots of the Panasonic Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II) screen. The higher dot count display is better for reviewing pictures on your camera. The Alpha a7R III provides better slowest shutter speed - 60 seconds. The Alpha a7R III provides better fastest shutter speed - 1/8000 second.
The Panasonic Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II) has built-in flash. The Alpha a7R III battery life is better than the Panasonic Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II) battery life. According to CIPA standards you will be able to make 650 photos with the Alpha a7R III and only 290 with the Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II). The Lumix DMC-GX85 (Lumix DMC-GX80 / Lumix DMC-GX7 Mark II) weighs 426g which is 231g lighter in comparison with the weight of the Alpha a7R III.
Considering the above-mentioned differences the Sony Alpha a7R III is the best buy. Check the list of the best offers on Amazon