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Fisheye lenses and stuff
show user profile  Sir_Manfred

Are there lenses for DSLRs like the one on this security-camera?

Looks like something with that wide angle would be useful for making skymaps or skycubes.

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9/17/2014 3:12:00 PM (last edit: 9/17/2014 3:12:00 PM)
show user profile  BishBashRoss
Yeah you can get lenses like that for DSLRs and they can be very useful indeed.

See here for me info.

Basically you need a camera, wide angle lens, tripod and pano head. I guess if you just want the sky you can get a very wide angle lens, probably a fisheye and shoot straight up so no need for the other gear.

Lenses like that can be very expensive though. There are cheaper Samyang/Rokinon versions that can produce OK results.

Something like this for instance.

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9/17/2014 3:30:47 PM (last edit: 9/17/2014 3:30:47 PM)
show user profile  RedStar
Like bish said. Yes there are lenses. What body do you use?

If its a crop sensor camera then you will need a wider fisheye than a full frame if you want to take less shots to do a full 360.
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9/17/2014 4:09:46 PM (last edit: 9/17/2014 4:09:46 PM)
show user profile  soontekk
yup, each brand has a fish-eye lens but as said beware of the sensor.
My canon 15mm fisheye works great on my full frame but not so much on a cropped sensor apsc one.
canon even has a fisheye zoom lens which might solve that

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9/17/2014 4:59:01 PM (last edit: 9/17/2014 4:59:01 PM)
show user profile  Error404
that looks like 180 degrees, on a full frame Canon or Nikon, that would be the Sigma 8mm fisheye, which is 180 degrees. Shoot it straight up or straight down, and you see the horizon all the way around. -

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9/17/2014 6:33:37 PM (last edit: 9/17/2014 6:33:37 PM)
show user profile  Sir_Manfred
The lens on the security-cam has pretty much 180 degrees field of view in all directions.
Where can I find such a lens?
Bish: The links you posted didn't really show any good examples of 180 degrees fov. They seemed to be about fisheyes with a lower field of view.

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9/17/2014 6:35:22 PM (last edit: 9/17/2014 6:35:22 PM)
show user profile  Error404

on a full frame camera, it gets you 180 degrees. It's made in both Canon and Nikon lens mounts, and maybe others. -

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9/17/2014 6:37:53 PM (last edit: 9/17/2014 6:38:20 PM)
show user profile  3Ddeath
You need a lens sooo wide that you can photograph the back of the camera itself. ;)

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9/17/2014 8:18:25 PM (last edit: 9/17/2014 8:18:25 PM)
show user profile  soontekk
if your lens goes beyond a 360° the image keeps collapsing in on itself faster and faster untill it inevitably creates a black hole sucking up the camera...

melting ur brainz!
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9/17/2014 8:24:01 PM (last edit: 9/17/2014 8:24:01 PM)
show user profile  Error404

although as soontekk mentioned, I think i'd stick to 360, it's not worth the risk to go more than that. Don't do it man -

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9/17/2014 8:24:09 PM (last edit: 9/17/2014 8:25:16 PM)
show user profile  Sir_Manfred
Thanks Error!
That seems to be right up my a.... alley

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9/17/2014 9:08:51 PM (last edit: 9/17/2014 9:08:51 PM)
show user profile  Dr. Jim
I knew a guy who did 361 once. ONCE.
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9/17/2014 11:26:14 PM (last edit: 9/17/2014 11:26:14 PM)
show user profile  Error404 -

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9/18/2014 12:12:07 AM (last edit: 9/18/2014 12:12:07 AM)
show user profile  Sir_Manfred

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9/18/2014 9:16:34 AM (last edit: 9/18/2014 9:16:34 AM)
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