Re: Samyang 8mm: FOV?
- --- In PanoToolsNG@yahoogroups.com, Erik Krause <erik.krause@...> wrote:
>Right, that is a good article. Samyang is apparently unique in that it is very close to a 'Stereographic' projection, which is supposed to be desirable for panos :)
> Am 24.07.2010 20:10, schrieb Darren:
> > The Samyang literature indicates that on a Canon DSLR, the 8mm lens
> > has a 167˚ angle of view (I assume that this means 'diagonal'):
> The Samyang is a bit complicated because it doesn't follow the standard
> fisheye mapping. The very same lens is sold under different names and
> attributed with focal lengths from 6.3mm to 8mm. Likewise for the FoV
> (for the diameter of the image circle) different values are given. For
> details read
> Due to the unusual mapping the image circle is larger (and the usable
> FoV on an APS-C sensor smaller) than a normal 8mm fisheye (in fact it's
> almost as large as a 10.5mm fisheye). Examples are given on Michel
> Thobys page.
> Erik Krause