• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

magnification (1 Viewer)

Jerry S

Well-known member
United Kingdom
Hi can somene explain the difference in magnification say between swarovski binoculars and their scopes please, thanks for any help, jerry
 
Hi can somene explain the difference in magnification say between swarovski binoculars and their scopes please, thanks for any help, jerry

Hi Jerry,

Are you asking about the higher magnification of scopes compared to the lower magnification of binoculars? If so, that is due to the fact that most bins are used hand-held. The 7x to 10x range is the best compromise between magnification and sufficient stability. Most scopes are tripod mounted so they aren't subject to the stability issues that come from more magnification.

Mike
 
Essentially a function of focal length.Recall playing with magnifying lens,moving in towards and away subject.Much the same.Various prism designs bend light to modify focal length in bins.Eye pieces finish it off.Focal length determines how wide the field of view is also.Then we get into convex/concave shape of elements and grouping of,how it relates to collimation of light and magnification.But then we have start talking some really crazy numbers and physics and stuff.Rather be birding would we not.Tubes in spotting and tele(scopes) start off with long focal lengths,usually better or higher magnification also narrow field of view.Still,generally a function of focal length.
X used to define magnification with bins follows as.... unaided eyes see at 1x
so 8x means view is 8 times as great as with unaided eyes.
 
Warning! This thread is more than 12 years ago old.
It's likely that no further discussion is required, in which case we recommend starting a new thread. If however you feel your response is required you can still do so.

Users who are viewing this thread

Back
Top