- Hello list
New member with 10+ years of experience in the flat video world using
After Effects, among other things. I teach video at local universities,
and recently got some academic grant money to explore full dome video
after seeing a show at the Fels Planetarium in Phialdelphia and being
really impressed with the fully immersive nature of the media, and the
fact that it is such an accessible medium - IMAX needs all this special
stuff, full dome video can (conceivably) be created by anyone with a PC.
The biggest thing I am running into is proofing my media - I know that
Loch Ness has this little indoor dome set up -
which is a great idea and quite cost-effective and I am thinking of
doing something similar. I have a video projector - can I just get an
appropriate fish-eye lens and get something going ?
How do other people deal with this problem ?
- Make yourself a cheap fulldome monitor... You can do this with any large
(~1 meter) hemisphere shell (giant security mirrors work well) and a video
projector. No fisheye lens necessary! (The fisheye lens is really just
there to project your video super-wide. If you're shooting into a smaller
dome, you don't need the fisheye.)
Have a look at this PDF for the overall design:
I built a small scale model that worked very well (30cm). I haven't built a
big one yet because I happen to have a Mediaglobe and a 9m dome that I can
use pretty much whenever I want!
Here's a picture of a nice one by Ansible Technologies in action:
- Yes, you can build a "home planetarium", with a small dome (1 - 3 meters)
see my web page:
and more, but no translate: (in french, sorry)
that's a low cost system ;) but it's work very well !
and the projector is not modified,you can use it for another use afterwards
and the "old" design was here, without fisheye:
[Or as a TinyURL: http://tinyurl.com/2u82p3 --Moderator]
what do you think about this ?
Unfortunately, unlike cameras, projectors don't have lens mount
standards so fisheye lenses must designed for specific models or lines
for optimal image quality. The Loch Ness LarryDome uses one of our
OmniFocus projection systems, which use off-the-shelf projectors
mounted with a custom designed lens: http://www.elumenati.com/products/
If you already have a projector you'd like to use, you can try Paul
Bourke's MirrorDome approach:
> The biggest thing I am running into is proofing my mediaHave a look at the links listed below
Using a spherical mirror to project into a dome, and other shaped surfaces.
Please feel free to email me for specific questions on this and software solutions.
- hi all,
it's true that quality is not inevitably optimized for the fisheye, but one
can use a diaphragm which arranges many things on the edges of field in more
one can make an assembly without modifying the projector, and re-using the
fisheye for the traditional photograph, in short to recover all the elements
after test� for very expensive step <500 $
try it, you will surprising...
that will not replace the excellent products of the market, it is obvious!
- Hello list
thanks for all the responses - many things to think about - since this
whole thing seemingly will be DIY, one thing that is really helpful is
when responses detail where to get something referred to in the
great list ! thanks again.