Indeed.
And not to mention lifting that lens in Jupiter gravity.
Jostein
Den 14.12.2018 21:59, skrev l...@red4est.com:
He could probably do so from Jupiter, but a lens with a 500 km focal length
might be out of his budget.
On December 14, 2018 11:13:55 AM PST, John <jsessoms...@nc.rr.com> wrote:
I wonder how high up in the nosebleed seats you'd have to be so that
you're
enough light-years away from the stage to catch the singer still at the
microphone?
On 12/14/2018 04:14:25, Jostein wrote:
Interesting.
Come to think of it, I have frequently photographed the place in
space where the
Andromeda galaxy was two million years ago. :-)
Jostein
Den 14.12.2018 00:49, skrev Dale H. Cook:
At 03:25 PM 12/13/2018, Alex Sarbu wrote:
I'm able to photograph the place where the concert was.
That reminds me of a NatGeo program about Area 51 (Groom Lake). When
the
Lockheed A-12 spy plane was in development for the CIA Radar Cross
Section
(RCS) testing was going on at the base. A mockup was mounted on a
pylon for
the tests. Because the Soviets already has some spy satellites and
the CIA
didn't want the Soviets to see the mockup they removed the it from
the pylon
when a Soviet satellite was due to pass overhead. At first the CIA
didn't
realize was that the Soviet satellites could do infrared imaging.
The shadow
of the mockup was cooler than the surrounding ground. The Soviets
were able to
discern the mockup's outline from the infrared image of the shadow.
Once the
CIA learned that the Soviets had an outline of the mockup they
figured out how
it was obtained and then instituted thermal counter measures.
The Soviet photographs showed the place where the mockup was.
Dale H. Cook, many years as 35mm SLR photographer,
now Pentax K-70 w/ Pentax-DA 18-270mm walking-
around lens or SMC Pentax-A 50mm/f2 lens
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