[PanoToolsNG] Re: Field of view question
- Sometime around 31/3/09 (at 20:41 +0200) Erik Krause said:
>Since the 16mm fisheye uses a different mapping it covers a far largerExactly, hence the question. :-) Thanks for the fov_pan_calc link,
>FoV than the rectilinear lens.
that is interesting and looks like it has everything... although I
have to say that it is presented in a rather dauntingly (dare I say
unhelpfully?) technical manner! Heh- I guess that's the nature of the
Harry's post and link to the imaginatorium.org page was also useful;
I think a couple of rows of 8 around will be the next thing for this
chap to try, then see how much z & n space is left.
- I use my 12 mm rectilinear lens (Voigtländer Heliar, now on a very nice
Zeiss-Ikon SW) like this:
6x -20°, 4x +45°, plus zenith and nadir shots
However the 14 mm is closer to my 15 mm which I use rarely (for no real
Another comparable rectilinear lens is the 43 mm of my Mamiya 7II which
is comparable to 20 or 21 mm (different w/h ratio). With that lens I
shoot 7x -35°, 7x 25°, zenith and nadir. BTW my rotator has seven click
8 clicks around / 2 rows would easily work with a 14 mm lens. Plus z&n.
The easiest way to find a good "matrix" of shots that has enough overlap
is to use dummy images in hugin or ptgui. I also have a habit of trying
to start with the lower row in a way so it doesn't include my rotator.
Less work to mask unwanted details... just calculate enough overlap for
the upper row and start shooting. Hey, the D3 is a DSLR! =8-)
Posted by: "Harry van der Wolf"
> check <http://imaginatorium.org/stuff/angle.htm>
> So for a 14 mm rectilinear in portrait mode, you have a hfov of 81 degrees
> (remember: in portrait mode) and with 30% overlap (approx. 50 degrees hfov),
> you would need 7+, preferably 8 images around. Probably 2 rows.
> one shot for nadir and zenith with 2 horizontal rows in portrait?
> 2x2 shots for nadir and zenith with 1 horizontal row in portrait?
> 2009/3/31 Keith Martin <keith@...>
>> > I've just been asked how the field of view compares between a Nikkor
>> > 14-24 f2.8 fx lens and a 16mm fisheye. This is on a full-frame
>> > camera, the Nikon D3.
>> > This guy is trying out his first panos, but he's using that 14-24mm
>> > wideangle rectilinear lens. Assuming he uses it at 14mm, how many
>> > shots around is he likely to need, and how much work would it be to
>> > make a spherical pano?
- --- In PanoToolsNG@yahoogroups.com, Keith Martin <keith@...> wrote:
>You may have a look at this lens database (unfortunately discontinued):
> I've just been asked how the field of view compares between a Nikkor
> 14-24 f2.8 fx lens and a 16mm fisheye......
> ..... how many shots around is he likely to need,
> and how much work would it be to make a spherical pano?
This is a source I like very much.
(should be continued by somebody ....)