Hi

I have been trying to find out what focal length does the eye see at compared to a lens

i.e If i was to focus on a balloon across the room, what lens would i use to get the same focal length to produce the same size photo on what the eye sees

or maybe i should ask what lens comes close to what the eyes see, or what is the focal length of our eyes.

Sorry if im confusing you, im just trying to work out what is the best method to explain this,


Thanks
Kyle