I will admit to cherry picking a little bit in what I'm replying too, mostly because it's taken from various posts over 4 pages and if I replied to them all, I'd be typing all day.
You seem to be conveniently completely overlooking the effects of phase angle, as you yourself kindly introduced into the debate above, notwithstanding your erroneous belief that it governs light drop-off. Indeed, the two photos that you posted earlier serve to contradict entirely what you're now offering as the explanation here!
They don't contradict what we see in AS11-40-5903 at all. The texture and shading in the footprints close to Aldrin stand out quite clearly, just like the tracks in the up-sun image I posted. Further away in the distance behind Aldrin we see the ground appear to get dimmer as the shadows of the rocks and craters begin to merge due to foreshorting. Perhaps the issue you have is the area directly behind Aldrin that appears bright. This area was where the LM flew over shortly before landing. You can see that the surface dust has been blown clear resulting in a "shiny" appearance. It also has an effect on a secondary property of Lunar dust. The secondary reason that looking down-sun is brighter on the moon is that lunar dust has the property of reflecting more light directly back at its source than scattering onwards, like a catseye reflector. We can tell this from Earth by comparing the light received from the moon during Quarter Moon and Full Moon. Even though the lit surface area of the Quarter Moon is half that of the Full Moon, the light that is being reflected onto the Earth is less than a 1/4 of the Full Moon (Full Moon is magnitude –12.7, Quarter Moon is only –11.0, resulting in the Full Moon being 4.78x as bright as the Quarter Moon.) The full moon is a full 30% brighter than it should be, while the quarter moon is slightly dimmer. This is because the lunar surface prefers to direct light back at the source. So why does this affect the picture AS11-40-5903? The strip directly behind Aldrin has been swept clear of dust by the LM engine. This means it is not reflecting the light directly back at the sun like the unaffected areas, so it is reflecting more light to the camera, and thus appears brighter. The removeal of the dust also affects the cratering and shadows cast as the surface is a lot smoother and less textured with the dust gone, so this is also in effect.
Just take another look at the up-sun shot you posted and answer this: Why do we see dark shadows, and why are the undulations striking those shadows not 'backfilled' with light such that they don't appear black?!
Because the backfill is coming up from the ground, the shadows of the undulations and craters are at ground level or in some cases below. Light reflected up by the ground cannot fill shadows on the ground.
Trigonometry. The Opposite (Aldrin's Height) = The Adjacent (The distance to Aldrin) x the Tangent of θ (the angle in the image that Aldrin occupies)
More trigonometry.
The shadow length does not feature in Groves' calculation, so everything you've written above is, well, let's be polite and just say irrelevant!
What I wrote had nothing to do with Groves, it was directly responding to the shadow analysis you did.
You calculated this just from looking at a photo! Cool!
I determined it by comparing Aldrin's boots and the crater rim. Of course if you don't think it is possible to do such a simple thing, then how are you determining that Groves can do a far more difficult calculation with less?
And, 'funnily enough' the famous Aldrin shot is looking essentially up-sun, but doesn't display the characteristics that your up-sun example shows, so far as the image of Aldrin is concerned!
I disagree, the ground in the image does display the characteristics shown in the up-sun image.
(Contrast Aldrin's left inner knee and right shoulder before you erroneously suggest that great reflecting lump of cheese as the light source!)
The inside of Aldrin's left knee and his right shoulder are directly being lit by the sun, there, as with another parts of the suit in direct sunlight, the suit is clearly overexposed. The rest of the suit is being lit by light reflecting off various objects, mostly the ground, but some additional light from the LM, Armstrong's suit, and a few places (most obviously the inside of Aldrin's right leg, and the right upper part of the PLSS) from sunlight reflecting off Aldrin's own suit.
The ground is noticeably darker at the bottom of the photo, i.e. near the photographer, than the apparent 'pool of light' around Aldrin.
Explained up the top. This is an effect of the dust properties and of the texture in the dust casting shadows, both missing in the "swept" area behind Aldrin.
It is completely unnecessary, and would be a fundamental mistake, to try to assess drop-off by reference to an image reflected from a concave visor facing the opposite direction. Now if anything's stretching incredulity that is!
Why? The visor acts as a mirror and allows us to see the lunar surface that Aldrin can see as effectively as a mirror. All the convex nature does is distort the image from being straight to being curved, it doesn't change the amount of light reflecting from the surface to the camera and make the surface brighter. It is quite clear that the drop-off seen in the up-sun direction is not there in the down-sun, and that the surface looks far less textured than the up-sun surface, exactly what we expect to see.
There are only rocks and craters in the up-sun distance, and that accounts for the drop off? How do you reach that conclusion? The terrain looks pretty uniform on average to me. You posted photo earlier does not display any drop off whatsoever!
No there arte not only craters and rocks in the up-sun direction, they are just more obvious because their shadows define them in the up-sun direction, while in the down-sun direction their shadows are hidden so they blend into the similar colour surface and are harder to see. This makes the down-sun direction appear brighter and less textured than the up-sun direction.
I'm saying that cropping and adding, even if there were some, is completely irrelevant. Groves analysed the image with complete disregard to the perimeter of the photo. Any reference to the centre cross-hair is only in respect of assessing part of the image, and the relationship between any part of the image and the centre cross-hairs is fixed!
Who said the cropping had anything to do with Groves? The cropping is an issue with Dark Moon and is put forward by David Percy and the others at Aulis. Not everything in my posts is a reference to Groves. This claim by them is found on pg 68 of Dark Moon.
Accepting your 90% assertion, yes I am, especially given that we're only talking about Armstrong's shoulder, which is pretty small in area and can hardly be described as an effective reflecting surface (take a look at how 'well' Aldrin's left outer shoulder seems to be acting as a meaningful light source for comparison).
You still seem to be of the assumption that Armstrong's suit is responsible for the entire backlighting. I'm not claiming that, I'm saying that the hotspot seen in Aldrin's boot is a reflection of Armstrong's suit created in the shiny silica protective coating on the brand new boot. The fill lighting is a totally different story.
Do you mean the area close to the LM that's completely in shadow, or the lunar surface way beyond the LM shadow?!
I mean any part of the lit lunar surface that Aldrin can see. You do understand that to see the lit surface it must be reflecting enough light that the eye can detect it, right? You realise that if it is reflecting light that the eye can see that any light that doesn't hit the eye must hit objects about the eye, correct? You understand that when reflected light hits an object that that object is able to reflect that light as well, correct? You do realise that the lunar surface is a very bright object and is reflecting copious amounts of light back towards the light's source (the sun) at a rate of 30% more than expected right, that it is the equivalent of having a 60w light bulb every square metre of ground? Why would this reflected light not be enough to backfill the LM and a guy in a bright white suit?
What exactly do you mean?
Imagine (if you can!), just for a moment, that the Aldrin photo were shown beyond all reasonable doubt to be a fake (or at best 'doctored' for more than mere 'presentation'), what would your reaction be?
Assuming that the original could be shown to be faked, I'd have to wonder why they needed too, however the preponderance of evidence would still point towards the landings being real, even if the roll of photos was faked for some reason.
I wouldn't bet on that, not if he's anything like Armstrong!
Meaning?
However you are close. To film the actual landing it took three. Armstrong, Aldrin, and the guy who operated the remote cam for the first step.
Actually for Apollo 11 there was no remote control on the camera. To take the video of the first step Aldrin activated a circuit breaker in the LM while Armstrong pulled a string that released the MESA. The Camera was positioned on the MESA so that when it opened up, the camera was automatically pointing at the ladder.
The remote controlled cameras weren't used until the J-Missions, when the cameras were put on the LRV, starting with Apollo 15. The controller at that point and for the following two missions was Ed Fendell.
What would the temperature difference have typically been between, say, a partially reflective metal surface exposed to full sunlight for, say, an hour, and that same surface placed in full shade for an hour?
What type of metal? What coatings are on the metal? What angle is the metal to sun? Is the metal touching the ground? What temperature was the metal at prior to being placed? These are all factors in determining the answer. Otherwise you might as well ask how long is a piece of string. The better question is, why is this relevant? How about you just state your issues.
I'm not alluding to the space suits; they were, I assume, designed from basics specifically with the missions in mind. Many other aspects weren't, though.
What aspects?
This typifies the misconceived views of many anti-Apollo CTs, namely that the alleged conspiracy was perpetrated from the get go. What I see as a more plausible possibility derives from an attempt by NASA to fulfil the Apollo objective as planned, but then, on the discovery and realization that certain technological obstacles are far greater than envisaged, recognizing the need to be seen to have succeeded, particularly in the context of the political race possibly hovering on the verge of being lost. I don't doubt for one milli-second that the Apollo program was absolutely genuine, except for the very last part.
Exactly what technological obstacles?
What direction was the light travelling when it struck the lunar surface? Have you ever driven directly into the Sun when it's very low in the evening sky, then felt relieved when you turn a bend, by any chance? Why is that, I wonder?!
As I noted at the being, the lunar dust is predisposed to directing the majority of the light it reflects back at the source so the surface is actually darker looking up-sun than it is down-sun due to the ground reflecting 30% more light back at you when you're looking down-sun. This means that there is 30% more light than expected being reflected back that can backfill shadows on objects above the surface.