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Nicely taken. I'm all for pictures of large telescopes.
Most used: EM5i + 12-200mm, In briefcase: E-PM2 + 12-42mmEZ
Film Kit OM4Ti + Vivitar Series 1 (OM fit ) 28-105mm F/2.8-3.8, Sigma III (OM fit) 75-200mm F/2.8-3.5, Vivitar Series 1 (OM fit) 100-500mm, Zuiko 50mm F/1.2
Learn something new every day
That first one looks like a telescope but that second one just looks weird. How does that one work?
It's a Reflecting Telescope. Works in a similar manner to a Mirror Lens.
This one is possibly a Newtonian type see here. [ame="http://en.wikipedia.org/wiki/Newtonian_telescope"]Newtonian telescope - Wikipedia, the free encyclopedia[/ame]
Regards.
Peter
she looked at me and said "It's official. I hate your camera. It's just so amazing and perfect I want one!"
E-M10 MK II, E-M5, E-PL1, E-PM2, mZ 12-50, mZ 14-42mm EZ, mZ 17mm f 1.8, mZ 25mm f1.8, mZ 45mm f1.8, mZ 75-300mm II.
OM1n, OM 50mm f1.8.
Oly Viewer3, Dxo Pro 11. FastStone.
That first one looks like a telescope but that second one just looks weird. How does that one work?
The first is a traditional refractor, lens at front and back and you look through the back plus a nice long tube makes it easily recogniseable as a telescope.
The second is a truss tubed (like a car space frame chassis) Newtonian reflector. The main mirror is at the bottom which reflects light back up the tube to a 45 degree flat mirror which sends the image out the side where you put the eyepiece or in this case a ccd camera.
Reflectors are cheaper and easier to build big apetures with, thats why the worlds biggest scopes are all reflectors.
Nice. I love optics, which doesn't do the bank balance any good!
Managed a day-time visit to the Norman Lockyer observatory in Sidmouth, Devon (http://www.normanlockyer.com/visitors%20index.html) a few years ago. The enthusiasts who now look after the site provided a tour. I didn't take any photos inside though. It might be a bit far for you to journey down, but if you're in the area when it's open it's worth a visit.
Ian
(I can never think of anything witty to say when under pressure!)
GH2, G50, various m4/3rds lenses, Fuji X-T1 system
Thanks Ian, the NLO is on my list I intend to visit next time Im down that way on hols.
Heres another local observatory scope, Long Eaton Schools 16" Meade Schmidt Cassegrain plus Lunt Hydrogen alpha solar scope. Again taken with Em 10 in ambient light, this was easier due to the dome being opened, but the dome is not very big so I couldnt get far enough away to do it justice
The shutters were closed on this one so ambient light again, no flash
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