On the British side, bringing the efforts in photo recon to the attention of Churchill were assisted by his daughter paying a part in it, she was a PI. Sarah Churchill (actress) - Wikipedia
3D aerial photography
- Thread starter Odoaker
- Start date
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Or maybe just a lucky bastard! As I said before, it's a good thing the flyover didn't happen a few minutes earlier. Coulda been compromising.Hah! You my sir, are either a liar or a gentleman!
I was surprised the next morning to find out from the photo guys she was the Admiral's secretary and had a rep amongst the troops as a druggie and a party animal.
Chris H
Airman
I'm a former imagery analyst, having served in the British army, and continued as an IA after I retired. Although stereoscopy is not used as much in the digital world, it is still possible to produce digital images, called anaglyphs, by overlaying different-tinted overlapping images and looking at them on screen using glasses with red/blue or red/green lenses!
When I was a "junior" in the discipline, I was told that experienced IAs could see 3D from two overlapping images without using a stereoscope! Now I'm a lot older and wiser, I can still use this trick, which really helps when doing "spot the difference" puzzles! It's just a case of slightly crossing your eyes until you see three images, then concentrating on the one in the "middle". Any differences will appear as a fuzzy blur!
When I was a "junior" in the discipline, I was told that experienced IAs could see 3D from two overlapping images without using a stereoscope! Now I'm a lot older and wiser, I can still use this trick, which really helps when doing "spot the difference" puzzles! It's just a case of slightly crossing your eyes until you see three images, then concentrating on the one in the "middle". Any differences will appear as a fuzzy blur!
Airframes
Benevolens Magister
I used to be able to do that sometimes Chris, but if I tried now, my eyes would probably stay crossed. !!!
I certainly remember having a headache, after long periods using the stereoscope, and these days I'm reminded of this when using my "Optivisor" magnifying head band, for long periods when modelling.
It's a b*gger getting old !
I certainly remember having a headache, after long periods using the stereoscope, and these days I'm reminded of this when using my "Optivisor" magnifying head band, for long periods when modelling.
It's a b*gger getting old !
Are those the things that used to be in newspapers years ago, what looks like a random crazed pattern has a 3-D image in it if you stare "through" it?
Chris H
Airman
It's a funny old thing, but since I've stopped using a stereoscope, my eyesight has deteriorated a bit!
Chris H
Airman
A very similar technique! It's a matter of relaxing your eyes enough to be able to adjust the focal point!
I used to love teaching stereoscopy to student IAs, the result of them getting two images into stereo almost always resulted in shouted expletives!
Chris H
Airman
An acquaintance of mine was debriefing a German IA after the war, and asked why their analysts made so many basic errors, given the superb quality of their optical equipment.
The German replied that stereoscopy wasn't used in first-phase reporting (hot off the press initial examination of the sortie) and only came into play in the much later third phase analysis. Then there was the problem of the "monocle syndrome"! In the German forces, only Lt Cols and above were "allowed' to wear a monocle. If you didn't wear a monocle, you were ignored! I'm afraid that even as a seasoned Warrant Officer, I experienced the same syndrome from senior officers!
Airframes
Benevolens Magister
Yep, even allowing for ageing, I've noticed the same.
In my "civvy" career, I spent many hours each day using a "dot" glass, checking half-tone negatives and prints, and rarely, if ever, got tired eyes or poor vision.
Similarly, when modelling, using the "Optivisor" and various strength magnifying glasses, my eyes were fine. But, over the last six months, I haven't used these tools, and now find I need to wear reading glasses to view the computer screen properly, and for reading, which, for the most part, I didn't need to do previously.
In my "civvy" career, I spent many hours each day using a "dot" glass, checking half-tone negatives and prints, and rarely, if ever, got tired eyes or poor vision.
Similarly, when modelling, using the "Optivisor" and various strength magnifying glasses, my eyes were fine. But, over the last six months, I haven't used these tools, and now find I need to wear reading glasses to view the computer screen properly, and for reading, which, for the most part, I didn't need to do previously.
Chris H
Airman
The wonderful Constance Babington Smith! I have looked at imagery using that actual stereoscope and Leitz magnifier! They both now repose in the Medmenham Collection at Chicksands, which is home to the Intelligence Corps Museum, and other collections! I also had the great honour of meeting her a couple of years before she passed away!
Chris H
Airman
As my Dad used to say (in Welsh), "Old age doesn't come on its own!"
It is also similar to the technique for seeing aircraft in a clear blue sky, with no cloud your eyes focus a few feet in front of your face.A very similar technique! It's a matter of relaxing your eyes enough to be able to adjust the focal point!
I used to love teaching stereoscopy to student IAs, the result of them getting two images into stereo almost always resulted in shouted expletives!
Airframes
Benevolens Magister
That's what happens to my eyes, on the way back from the pub on a Saturday night !
Stereoscopic image of the surroundings becomes more stereo... quadro?
special ed
1st Sergeant
- 4,899
- May 13, 2018
It is quadroscopic if you wear glasses while looking in the viewer.
Chris H
Airman
I thought that was "uncaging the optics"!
