What Device do largest telescopes in world use to collect as much light as possible?
The largest visible-light telescopes in the world use what device to collect as much light as possible before the light is brought to a focus (to act as the light bucket)?
A. a lens
B. a spectroscope
C. a CCD
D. a mirror
E. a valley in Puerto Rico
a mirror.
Universe / Galaxy structure measured out to 2 billions light years distance.
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Meade #64 T-Adapter for all ETX models (Except ETX-60/70/80AT) $32.95 The #64 T-Adapter is the basic means of photography through the a 90mm ETX-Series telescope. The adapter threads to the rear cell of the telescope. The adapter is then followed by an optional T-Mount (available separately) appropriate to your brand of 35mm camera. With the #64 T-Adapter and T-Mount in place, the camera body is rigidly coupled to the telescope’s optical system, which in effect beco… |
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Orion T-ring for Nikon Camera $18.69 A T-ring converts a camera’s mount to a standard T-thread, allowing you to couple a camera body to a camera adapter or, in some cases, directly to the focuser of a telescope. All camera adapters, including Celestron and Meade T-adapters and universal camera adapters, will fit this T-thread. Have a new digital SLR camera? We’ve got the T-rings you’ll need. The #5224 T-ring fits the Canon 300D Digit… |
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