If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
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
|
|||
|
|||
"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
|
|||
|
|||
I saw declassified satellite images around 1960 where you could
read the logo on the side of a truck BRBR We would all have been impressed. All you can see from a satellite like a KH-11 or KH-12 is the TOP of the truck. :-) |
#4
|
|||
|
|||
Hemi:
Do you think there are any government sixties or seventys recon lenses we cannot purchase surplus? |
#5
|
|||
|
|||
"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. |
#6
|
|||
|
|||
"EDGY01" wrote in message ... I saw declassified satellite images around 1960 where you could read the logo on the side of a truck BRBR We would all have been impressed. All you can see from a satellite like a KH-11 or KH-12 is the TOP of the truck. :-) KH 11 & 12 satellites were spec'd and built by Lockheed Space and Missiles and the Ball Brothers in the 1970's. That technology is now [almost] 30 years old. With a KH 11 shot you could identify that a Russian soldier was urinating on the side of a snow covered hardened aircraft shelter. Advance the technology to the early 90's (what presumably would be flying today) and I would guess you could tell if he was wearing boxers or briefs - if the angle was right. The statement about the 1960 declassified overhead intel photo and reading the logo is correctly called B.S. See www.nro.gov and look at the pictures from the Corona program. Funny, when I worked with the NRO (early 80's at then Sunnyvale (now: Onizuka) Air Station), just saying those three letters in a row was classified secret, and now they have their own web page... |
#7
|
|||
|
|||
"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. |
#8
|
|||
|
|||
Jim Phelps wrote:
Funny, when I worked with the NRO (early 80's at then Sunnyvale (now: Onizuka) Air Station), just saying those three letters in a row was classified secret, and now they have their own web page... The existence of the NRO and its title were never a classified item. Like the NSA it was a tight lipped, self obscuring agency, that's all. -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: there's no such thing as a FreeLunch. |
#9
|
|||
|
|||
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. |
#10
|
|||
|
|||
"Alan Browne" wrote in message .. . The existence of the NRO and its title were never a classified item. Like the NSA it was a tight lipped, self obscuring agency, that's all. Until 1992 (IIRC) the mere existence of the NRO was classified Secret. It was not until Billy 'The Cigar' Clinton acknowledged the use of overhead national assets and the use of space based photographic systems that it was brought out of the black. I believe you can verify this on the NRO home page. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Sad news for film-based photography | Ronald Shu | 35mm Photo Equipment | 200 | October 6th 04 12:07 AM |
What will happen to classic film cameras? | Mike Henley | 35mm Photo Equipment | 15 | July 6th 04 06:24 PM |
below $1000 film vs digital | Mike Henley | Medium Format Photography Equipment | 182 | June 25th 04 03:37 AM |
Digital Imaging vs. (Digital and Film) Photography | Bob Monaghan | Medium Format Photography Equipment | 9 | June 19th 04 05:48 PM |
Which is better? digital cameras or older crappy cameras thatuse film? | Michael Weinstein, M.D. | In The Darkroom | 13 | January 24th 04 09:51 PM |