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Price
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SENSOR Effective pixels: 21 megapixels
SENSOR Max resolution: 5568 x 3712
SENSOR Sensor photo detectors: 22 megapixels
IMAGE ISO: ISO 100 - 51200 (expandable to 50 - 1640000)
IMAGE Boosted ISO (minimum): 50
IMAGE Boosted ISO (maximum): 1640000
IMAGE White balance presets: 12
IMAGE Uncompressed format: RAW + TIFF
PHOTOGRAPHY FEATURES Maximum shutter speed: 1/8000 sec
PHOTOGRAPHY FEATURES External flash: Yes (Hot-shoe, Wireless plus sync connector)
PHOTOGRAPHY FEATURES Continuous drive: 10.0 fps
SCREEN / VIEWFINDER Screen size: 3.2″
SCREEN / VIEWFINDER Screen dots: 2,359,000
SCREEN / VIEWFINDER Touch screen: Yes
SCREEN / VIEWFINDER Viewfinder type: Optical (pentaprism)
OPTICS & FOCUS Number of focus points: 153
PHYSICAL Battery Life (CIPA): 1240
OTHER FEATURES GPS: Optional
Main
Model
Price
Advantages
PHOTOGRAPHY FEATURES Subject / scene modes: Yes
PHOTOGRAPHY FEATURES Built-in flash: Yes
PHYSICAL Weight (inc. batteries): 331 g (0.73 lb / 11.68 oz)
Summary
The D500 maximum resolution of 5568 x 3712 pixels (21 megapixels) is better than the X-A10 highest resolution of 4896 x 3264 pixels (16 megapixels). The D500 offers a wider ISO range of 100-51200 than 200-6400 ISO range of the X-A10. Such ISO numbers allow the photographer to capture good quality photos in dim light conditions. The D500 provides more number of white balance presets - 12. This option gives you more control over colour. The D500 can save images in RAW format that records greater levels of brightness and lets the photographer to adjust white balance easily. The D500 provides more focus points than the X-A10: 153 vs 49. More focus points means less risk of losing focus lock when following a moving object.
The D500 display is better as it offers more screen dots 2,359,000 in comparison to 1,040,000 dots of the X-A10 display. The higher dot count display is better for reviewing pictures on your camera. The D500 is equipped with Yes inch touch screen that is bigger than No inch display of the X-A10. The D500 has better highest shutter speed - 1/8000 second.
The X-A10 is equipped with built-in flash. The D500 supports external flash. It provides great control over the exposure and lighting of the subject in low light or in bright light conditions where the photographer needs to fill-flash. The D500 battery life is better than the X-A10 battery life. According to CIPA standards the photographer will be able to take 1240 shots with the D500 and only 410 with the X-A10. The X-A10 weighs 331g that is 529g lighter than the weight of the D500. The D500 can utilize optional accessory GPS devices. This feature can be convenient for the travel photographer, to be able to check the picture metadata and see exactly where a photo was shot.
Considering the above-mentioned differences the Nikon D500 will become the best buy. Check the lowest price on Amazon