It seems that some
CathInfo members posted replies while I was composing this. I confess that I haven't been able keep up with some members' unusually prolific posting rates in this
topic this evening.
▷ How can an astronaut descending to the moon’s surface from a LEM be so perfectly lit up and photographed when the his surroundings are plunged in the shadows of the very LEM he is exiting?
Huh? When? In the famous Apollo-11 black&white video from the Moon, as broadcast by the major U.S. t.v. networks as relayed from Earth stations, Armstrong
was in the
shadow of the
L.E.M. as he descended its ladder and stepped/jumped down to the surface. Frustratingly so, because I was photographing it directly from a t.v. screen as it was broadcast; I'd expected clearer video.
▷ How does an astronaut snap clearly framed pictures in a bulky space suit with a Hasselblad camara mounted on his chest?
Easy: The Hasselblad 500-series are
single-lens reflexes that form a 2¼×2¼-in. (6×6-cm.) square image, but like the 2¼×2¼
twin-lens reflexes (e.g., Rolleiflex) over which they were considered a major technical advancement, have
look-down viewfinders. On the Hasselblad 500-series, the
ground-glass viewfinder is just in front of the film magazine in the rear. So for active photography, it was positioned as close to an astronaut's helmet face-plate as higher equipment-priorities allowed. I think that focusing with potentially clumsy gloves was facilitated by a stalk on its focusing ring. It's not all that different from the issues that divers overcome in underwater photography, but these details are all from fallible human memory. In fact, NASA had astronauts practice various skills underwater.
As photojournalists have learned since long before Project Apollo, an
index finger pointing at the subject, on a path parallel to the axis of the lens, can produce surprisingly
well-framed photos. Seems to me the framing issue on Moon missions was eased by mounting a moderate wide-angle lens (i.e., not so short a focal length as to disable the reflex mirror), perhaps 50 mm. When not framed exactly as NASA wanted, but including all the intended subject, then they could quite honestly rotate & crop in postprocessing. Chemical photography is an analog technology, so no one should sweat rotation by some number of degrees that's not a multiple of 90°.
Even the inventor of that camera was scratching his head over that one.
I simply do
not believe that claim. Please cite a verifiable printed source or on-line equivalent. The
inventor and engineers of Hasselblad would've been very familiar with everything I've written in this reply.
▷ Why is the moon’s alleged horizon so black[?] It should be blanketed with myriads of stars and galaxies, not to mention to clear views of planets in our solar system.
Sigh. This point of attempted debunking reveals rather deep
ignorance about photography, especially
exposure. The Moon's daytime surface is more-or-less as bright as beach sand on a sunny day. To accurately reproduce its ash-gray color, plus provide detail in the white space-suits, the exposure had to be set way too low to reproduce the relatively feeble light from distant stellar objects, including planets other than Earth.
Especially if the color film used on the Moon was
transparency (a.k.a. "slide") film, which has perhaps 1/2 the
exposure-latitude of
negative (a.k.a. "print") film (at least nowadays). I suspect that they followed the lead of the prestigious
National Geographic in routinely using a Kodak
transparency film, thus either Kodachrome
TM or Ektachrome
TM, whose A.S.A. film speeds in their commercial product lines back then were no higher than
64.
So how's 'bout
you going out some night and trying to photograph a sky full of the
planets and big-name
stars (from Earth); when you get an image that shows "myriads" brightly enough to meet your expectations, be sure to return to
CathInfo and present that image, with the exposure and other technical details (beware that claiming that it was set to "automatic" will be a summary disqualification).
▷ There is only one light source on the moon’s surface, viz. The sun. Yet many alleged photos on the moon show multiple light sources, whose shadows [go] off at various angles from the objects casting them. Impossible.
Fascinating. I've read that claim before, but I've never seen any such photos. Keep in mind that the L.E.M. was partially covered with a material that reflected light as well as aluminum foil. Feel free to provide URLs, but I'll warn potential respondents now: I refuse to download & watch any videos just so I can view any
still images.