Re: [PanoToolsNG] Re: Night Bracketing
- Thank you, Ingemar, for such a detailed reply.
On Mon, 16 Feb 2009 19:10:38 +0900, Ingemar Bergmark
> --- In PanoToolsNG@yahoogroups.com, "Roger D. Williams" <roger@...>I am finding that if I choose an exposure in which the highlights
>> Have you compared the result using PTgui's own HDR capabilities?
> No I haven't tried that yet, but that reminds me that I should...
> I'm also interested in trying out Photomatix to see what kind of
> results I can get.
are not clipped, and the conditions are such that boosting the
levels in the shadow areas doesn't introduce unacceptable noise
(usually the case now I am using the D300), then PTgui can do a
very good job with "pseudo" HDR from a single 16-bit TIFF exposure.
Obviously I am not dealing with the very widest dynamic ranges
here (mostly outdoor cityscapes) but the results I am getting
now are quite noticeably better than I was getting without HDR
(and the D200), and that's a disincentive to try anything more
complicated and time consuming. They're even comparable with
what I was getting from scanned film.
>> I guess that you were using a tripod in such dim light... soI keep the monopod for outdoors, using it with the 8mm Sigma
>> there would be no problem with accurate image registration.
> Yes, I used a tripod. I've done some testing with handheld nightshots
> too, and then using Erik Krause's EnfuseAlign batch files which uses
> the alignment functionality from Hugin. Although the alignment works
> well, I've had issues with parallax errors of objects near the camera
> resulting in shadow-edges. So I prefer using a tripod.
circular fisheye and Agnos ring, and for indoor shots I use a
tripod with NN3 and the 10.5mm Nikon. Outdoors it's four shots
around; indoors it's six around plus a nadir shot. More stitching
but now I have the non-parallax point properly taped there's not
much more problem stitching six than there is for four. And
indoors I seldom have people moving around. The only serious
extra problem is adding the differently angled nadir shot. Took
me several tries before I could get on top of that technique.
And of course you need a flat floor...
>> And did you find that painting people "in" or "out" presentedYou may find that more of a problem if you work with the PTgui
>> any problems with different image densities on the revealed
>> (or hidden) layer?
> If you look at the detail at 100% zoom in photoshop you can see a
> difference between the layers, however it's not noticable when
> viewing the panorama.
HDR option. I find it requires very finicky use of the eraser
brush, preferably controlled by a touchpad...
> As for PTGui, I could use a template, but for some reason I've gottenHmmmm. Think I'll try that too. I really liked the look of your night
> into the habit of copying the project file and then replacing the
> images in the copy.
shot. There was even cloud texture in the night sky! Impressive...