Two hypothetical 8x40 roof bins. One has a FOV of 5°, the other has a FOV of 10°. So the image from the 10° bin has twice as much stuff in it as the image from the 5° bin. Meaning the objects in the 5° bin are twice as big, right? And the size of the objects you see through a bin are decided by a combination of magnification, exit pupil and FOV, right? So under what what circumstances would the image that you see through an 8x bin actually be 8x?
Michael
Meaning the objects in the 5° bin are twice as big, right
no
see
http://www.birdwatching.com/optics/binoculars4_fov.html
this does not explain the two models, but you need to think in angles
http://www.sherwoods-photo.com/opti...eld-of-View.jpg
different models show different apparent angles. Think of the tree staying the same size but you see a wider field around the tree on all sides.