There is no optical phenomenon whereby part of an object obscured becomes visible upon zooming in on it. None. That is a priori absurd. Why? Because part of an otherwise visible object becomes obscured when light from that part is somehow blocked from reaching ones eye; but if that light cannot reach ones eye, then it cannot reach a telescopic lense at ones position. This isn’t magic.
Theosist is entirely correct
in this instance.
People posting in this topic are, in effect, attributing optical magic
" lenses. Which is a technical term that just about everyone posting herein is using incorrectly
Each lens under discussion is refracting whatever light rays enter that lens, having already been reflected (whether from near or far) toward the lens and the human eyes behind it. No
" lens, um, un
blocks any light ray that is reflected-but-blocked by physical obstructions far out in the distance, where an "obstruction" includes telephoto-foreshortened seawater.
You're extremely ignorant about this subject. [....] You are the one who's being stupid. Lots of things can happen to light and its relationship with how the eye perceives it.
This is not an issue of perception
by the human eye
; the light rays reflected from the distant object are either able to enter a lens--or not
. It makes no difference whether that lens is a "zoom"--especially because it's a term that just about everyone herein is using incorrectly.
Said optical phenomena have been well demonstrated and are well known. [....] In fact you can find many videos demonstrating exactly that which you bluster about being impossible. You see the bottom part of boats seemingly vanish, only to reappear when zoomed in on.
Why do you seem to have ruled out that possibility that those "many videos
" claiming magical "zoom
" lenses are frauds
E.g., close coördination between 2 photographers: 1 stationed at sea-level, and the 2nd at an elevation high enough to look over-&-past the "hump" of ocean curvature that obscures--i.e.: blocks--the distant ocean surface from viewers at sea-level, plus more-or-less competent video editing, could be all that's needed to produce such a fraudulent video
It would be one thing if you were just a simple idiot, but you're an arrogant idiot who blusters about claiming that your ignorance is actually truth.
My 50th anniversary
of serious photography
] arrives in 2018 (if not already passed in 2017). I've typically applied an engineering mind-set to the tools of the art & trade, which of course includes the technical characteristics of lenses. So altho' I'm making an appeal to authority
--my own--I'm well positioned to call "seabird [guano! ]
on magical "zoom
: Serious enough about photography to have started self-taught for a high school annual, including push-processing for my own film (there's quite a narrow margin for error in photographing football games by available light
at night), and printing some of it esp. in my college years. From time-to-time being paid for my fieldwork in photojournalism, and later, commercial film processing in a darkroom (dip-n-dunk
: no autoeverything processors).