Ingenious telescope

[MartG]

Very clever - bodge 10 Canon 400mm telephoto lenses together to make a telescope for research into low-brightness objects

http://www.mnn.com/green-tech/research-innovations...

[mebe]

Nice alternative approach.

[anonymous-user]

Persumably the "clever" bit is taking into account the precise individual lense alignment in the data conjunction / blending step, where you take 10 sets of digital data and overlay them into the final image?

[AER]

I imagine they are looking at a whole bunch of fairly precise calibration data points with them!

[Galileo]

Max_Torque said:

Persumably the "clever" bit is taking into account the precise individual lense alignment in the data conjunction / blending step, where you take 10 sets of digital data and overlay them into the final image?

Wouldn't RedShift do that for you? When you stack a load of images taken throught the same lense you still have to counter Earths rotation, so the images are always going to come out slightly out of alignment. 10 simultanious images like that would probably stack easier than a sequence.

[Moonhawk]

Galileo said:

Wouldn't RedShift do that for you? When you stack a load of images taken throught the same lense you still have to counter Earths rotation.

Not if you are tracking in equatorial mode - all images come out with the same orientation.

You only get field rotation when tracking in alt-az mode, or if your equatorial alignment is off.