Q. Are 10x50 binoculars better than 8x42 binoculars?

Considering the size and weight 8x42 is preferable for comfort; on average it saves roughly 200 grams. As a general rule the eye relief of a 10x50 is between 1 and 2 millimeters making it suitable for use with eyeglasses. When comparing the fields of view there is a significant distinction: The field of view of a 10x50 is typically 110 m/1000 m and the fields of view of 8x42 scopes range from 130 m/1000 m to 160 m/1000 m. Thus 8x42 provides a substantial improvement in the field of view. 10x50 has a little larger exit pupil than 8x42 giving it a slight advantage in low light.