reply to post by Toto2
It's really quite simple. Anyone who sits and thinks hard, and pays attention to the equipment used (the actual camera) and its details will see
WHY there is no good, clear sharp image.
First....basic lessons in photography would be helpful. Many have very limited experience and understanding of the concepts of exposure time,
aperture, motion of the subject being photographed (or digitally captured) through the camera's field-of-view, and the variables of lens focal
At the Pentagon parking entrance gate guard shack .... was a camera that, firstly, only took a frame of image at a fixed rate LESS THAN normal motion
picture (or video) frame rates. Thus, it is a "stop-motion" (as it's incorrectly referred, sometimes....since objects in the image that are MOVING
TOO FAST will blur out).
So, we have a frame rate much slower than 24 frames-per-second (normal film speed), or 30 fps (typical for NTSC video). (These rates are designed
based, as I understand, the Human brain's ability to "not see" the individual frames, as they are displayed. The threshold is below about 18-20
fps, where the "flicker" can be perceived, as evidenced in vintage movie examples).
Now.....for each fraction of a second (and that is unknown, to me) that the camera shutter was open, for each frame image.....objects moving at high
velocity will NOT be imaged clearly and sharply. This is basic knowledge, yes? American 77, at its final airspeed velocity of ~480 knots, is thus
moving, in terms of feet-per-second, at about 810 ft/sec. (480 kts, at 6,076 feet/nautical mile = 2,916,480 ft/hour. Divide by 60, is 48,608
ft/minute. Divide again by 60 = 810.13333
SO, the jet was obviously moving too fast
to be resolved clearly and sharply....what's more, as is evident by the focal distortion, is
the lens was a "wide-angle" focal length. You can see the perspective of the distance is typical of such lenses....the "vanishing point" of 3D
perspective is altered, and warped and exaggerated. Thus, objects farther away appear disproportionately smaller than "normal"....as viewed by the
Human eye, and lenses in the ~55 -- 60 mm focal length (which closely simulates OUR visual perception of the scene).
You can read THIS
about wide-angle lenses (and Google search for visual examples). Like
This subject (the blurring and sometimes poor camera resolution, and ability to clearly see some objects....especially nowadays, in the era of all
digital, mostly) reminds me of the so, so many (tragically laughable) "UFO proof" videos that infest the InterWebz, and YouTube. OFTEN, they are
birds!!! Blurred by the motion, unfocused due to the motion and inability to capture sharply, in the individual frame exposure rate...all limitations
that many, many people seem to fail to grasp. (Plenty of examples on YT, just hunt around...)
Similarly, the ridiculous claims of "morphing" and "invisible" airplanes, and referred to as "UFOs" in the ongoing nonsense "chemtrail"
debate....again, poor image quality that results in the camera unable to adequately resolve the airplanes, at times....so, distortion effects that are
merely IN the camera's CCD and image processing software......