Unusual Apollo pics, video and transcripts, page 23


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ATS Members have flagged this thread 8 times


reply posted on 19-10-2010 @ 10:10 AM by ppk55
reply to post by nataylor



None of that makes sense.

Please explain this.



When it should look like this from the NASA LRV operations manual.



edit: if you're suggesting that we're looking at the top of the upper wishbone, then we should see the direct proportional result at the bottom, but we dont.
edit on 19-10-2010 by ppk55 because: added proportional result



reply posted on 19-10-2010 @ 10:21 AM by nataylor
reply to post by ppk55



Dude, you must have serious eyesight problems. The forward-most upper arm clearly attaches to the bracket that I've highlighted. Your other arrow, pointing at the rear-most upper arm, isn't even visible in the diagram you posted.


reply posted on 19-10-2010 @ 03:59 PM by theability
reply to post by ArMaP



I think you have a problem understanding the perspective when looking at 2D images, something that happens to some people. That would explain your interpretation of many of the photos you have posted. That's why I suggested a model of LRV, it would give you the opportunity of looking at a real 3D object to compare with the photos and drawings.


Excellent suggestion ArMaP!


reply posted on 21-10-2010 @ 11:03 AM by theability
reply to post by ppk55



So the model also has the upper wishbone not attached to the frame.


The upper arm is attached to a angled bracket that has been show to you multiple times, with documentation in various forms.

I find your either:

A.) Ignoring the facts

B.) Have no skills to interrupt the facts about your questions, or the answers offered by other members

The answer is staring you right in the face.

Its like that old saying you can lead a horse to water.....

There is absolutely nothing wrong with the image, 3d model or anything you question. The only thing that has issues is your interpretation of what you say you see.


reply posted on 21-10-2010 @ 11:24 AM by nataylor
Originally posted by ppk55Before I move on, another photo has jumped out. And here is a problem.



Apparently this was taken with a 60mm lens. with the brightness of the moon this would have required a high f-stop, meaning the depth of field would be should be larger, but this is not what we see.
Cross sun, the camera would be set at f/5.6 or maybe f/8, as per the directions printed on the film cartridges:



The depth of field on the Hasselblad with 60mm lens focusing on an object about 4 feet away at f/8 would be under 1 foot, about what we see.


One other complicating matter is how the astro could pull this shot off so perfectly given the above factors, WITHOUT A VIEWFINDER.
It's not as hard as you think. From
here:
Manual focus is not as problematic as many suppose. Lens manufacturers mark the expected distance to the subject on the focus ring, and it's simply a matter of measuring or estimating the distance from the lens to the subject and setting the ring for that value.

To aid the astronauts in measuring the distance to subject, length of commonly used tools was marked on the lens. Several Apollo photographs show the tongs and scoops used as distance references.


And:
The Zeiss Biogon lens used by the astronauts had an indicator that specified the near and far boundaries of the depth of field for each combination of focus and f-stop.


Here's what the the depth of field indicator would look like (labeled "5"):



So they set the focus to the length of the tool they're using, and set the aperture to what they've been trained on and what's labeled on their film, and then, if they want to double-check, they can look at the depth of field indicators to verify their subject is going to be fully in focus. Sounds like it would actually be hard to mess that up.


reply posted on 21-10-2010 @ 11:28 AM by DJW001
reply to post by ppk55



As usual, I fail to see what your issue is here. Do you at least know which lens they were using? Also, clipping the header off of a table is silly... how are we supposed to know what the numbers mean? And could you also at least specify which mission the photo was taken on? I was able to deduce it was Apollo 15, but it would have been nice if you had simply posted a link. BTW, I'm not sure if the cameras used on the surface were capable of being focussed by the users. Do you know? Have you at least done that much research before posing your question?

Edit to add: Nataylor clearly works faster than I do!
edit on 21-10-2010 by DJW001 because: (no reason given)



reply posted on 21-10-2010 @ 12:44 PM by theability
reply to post by SLAYER69




....can we all say this thread has been a bust?


Yes we could! But the OP will never ever admit that, hence the OP of three topics in one thread. You bust one issue he distracts to another.

edit to add: I sure hope it was good coffee...yet somehow I sure it was.


edit on 21-10-2010 by theability because: late note

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