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#1
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Ultimate digital vs film: 1gp digital vs SR71 reconnaissance cameras
jjs wrote: "Judson McClendon" wrote in message ... Take those declassified documents with a grain of salt. I saw declassified satellite images around 1960 where you could read the logo on the side of a truck. [...] Mind if I Laugh Out Loud? If they (whomever 'they' are) said those were satellite images, then it was pure misinformation and served its purpose in that regard: you were fooled, and it may have frightened the Soviets into further spending themselves to oblivion. I believe him. Have you ever heard of teraserver? It is a satelite available to the public which can basically see your backyard. If such tech is available to regular citizens now, dont you think the military has at least that back then? I wouldn't be surprised if the military can get your shirt size from satelites now. |
#2
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"daveyp225" wrote in message
oups.com... jjs wrote: "Judson McClendon" wrote in message ... Take those declassified documents with a grain of salt. I saw declassified satellite images around 1960 where you could read the logo on the side of a truck. [...] Mind if I Laugh Out Loud? If they (whomever 'they' are) said those were satellite images, then it was pure misinformation [...] I believe him. Have you ever heard of teraserver? It is a satelite available to the public which can basically see your backyard. If such tech is available to regular citizens now, dont you think the military has at least that back then? I wouldn't be surprised if the military can get your shirt size from satelites now. I will let Hemi give the optical metrics required to resolve a "logo on the side of a truck", or license plate, or any image with angular requisites from a sattelite. Remember, back in the sixties they actually had to drop the film magazines from space to be caught by aircraft with tailhooks. I truly doubt teraserver's technology uses 60's tech. |
#3
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"daveyp225" wrote in message
oups.com... jjs wrote: "Judson McClendon" wrote in message ... Take those declassified documents with a grain of salt. I saw declassified satellite images around 1960 where you could read the logo on the side of a truck. [...] Mind if I Laugh Out Loud? If they (whomever 'they' are) said those were satellite images, then it was pure misinformation [...] I believe him. Have you ever heard of teraserver? It is a satelite available to the public which can basically see your backyard. If such tech is available to regular citizens now, dont you think the military has at least that back then? I wouldn't be surprised if the military can get your shirt size from satelites now. I will let Hemi give the optical metrics required to resolve a "logo on the side of a truck", or license plate, or any image with angular requisites from a sattelite. Remember, back in the sixties they actually had to drop the film magazines from space to be caught by aircraft with tailhooks. I truly doubt teraserver's technology uses 60's tech. |
#4
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Hemi:
Do you think there are any government sixties or seventys recon lenses we cannot purchase surplus? |
#5
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Hemi:
Do you think there are any government sixties or seventys recon lenses we cannot purchase surplus? |
#6
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"jjs" wrote in message ... Hemi: Do you think there are any government sixties or seventys recon lenses we cannot purchase surplus? Satellite - No, they all burned up upon reentry. Aircraft - Possible, check your local DMRO at a military base near you. |
#7
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"jjs" wrote in message ... Hemi: Do you think there are any government sixties or seventys recon lenses we cannot purchase surplus? Satellite - No, they all burned up upon reentry. Aircraft - Possible, check your local DMRO at a military base near you. |
#8
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"jjs" wrote in message ... I will let Hemi give the optical metrics required to resolve a "logo on the side of a truck", or license plate, or any image with angular requisites from a sattelite. Remember, back in the sixties they actually had to drop the film magazines from space to be caught by aircraft with tailhooks. I truly doubt teraserver's technology uses 60's tech. Don't forget the advantages of having those optics in a vacuum and the path from subject to optic is influenced by an ever decreasing proportion of atmospheric interference. |
#9
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"jjs" wrote in message ... I will let Hemi give the optical metrics required to resolve a "logo on the side of a truck", or license plate, or any image with angular requisites from a sattelite. Remember, back in the sixties they actually had to drop the film magazines from space to be caught by aircraft with tailhooks. I truly doubt teraserver's technology uses 60's tech. Don't forget the advantages of having those optics in a vacuum and the path from subject to optic is influenced by an ever decreasing proportion of atmospheric interference. |
#10
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The film used in the SR71 looks like a large format roll film. Plus the
huge diameter lens is truly impressive looking. There must be a good reason for wanting lots of film area when resolution is of prime importance. |
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