I’ve always wondered whether eagles (and hawks, falcons, really any bird of prey that relies on their vision to hunt) can “zoom in” with their eyes just like it’s a camera lens. Because whenever I watch a nature documentary about eagles, the camera technique they show is that of a camera zoom, zooming in towards the prey hundreds of meters away.
I know that with human eyes, we can’t optically zoom in with our eyes. Sure, our eyes can focus on stuff really close to us, making the background blurry, but it’s not like we can “zoom in” to stuff far in the distance.
So to reiterate, can eagles zoom in to view objects in the distance like their eyes are a camera lens or binoculars with zoom?
In: Biology
You don’t need to zoom.
My vision is just good enough that I don’t wear glasses or need glasses. Never even considered that my vision isn’t good.
Then I did get glasses. I had no idea what is possible. I mean I’m telling you I could count the blades of grass on a football field. I could count the leaves on a tree at a distance.
Point is, you don’t need zoom to “see” things far away. Glasses brought my vision above average and I could 100% “see further” even though it’s just making out detail.
Anecdotal evidence but I can say from firsthand experience the amount of detail is all that really matters.
Side note, I do not wear glasses at all ever anymore, I just had them for like a month years ago. I only feel like my vision is bad after putting them on, because I can totally get by and read all the things I need to read without them. I just can’t read a street sign a mile away like I can with glasses.
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