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07-14-2007, 05:17 PM   #3
Jonas B
Pentaxian
 
Location: Göteborg, Sweden
Gallery Photos: 0
Posts: 810
Sculpture revisited (330kB)

The version...

From the post above

...is Ok but I wanted something more extreme. So, I revisited the place, brought my tripod, panohead, umbrella, rubber boots, light meter, a couple of sandwiches, the K10D and an SMC Tak 50/1.4.

I placed myself a bit closer to the sculpture, loaded the camera with a fresh memory card and fired away. Here is the result:

K10D, SMC Takumar 50/1.4 at f/2, 97 pictures stitched

The version above is a quick and dirty version. That is, as quick a 97 picture mosaic can be. You can see some parallax errors. Stupid me! I first took the Zenitar picture you saw in the first post. It started to rain and when fiddling around with everything I forgot to adjust the horizontel axis of the pano head for the Takumar. The Zenitar and the Tak have their entrance pupil differing 11mmm and that was enough to make some problems for the stitching software.

Now that doesn't matter very much. The result isn't any good anyway. Unfortunately the bokeh of the SMC 50/1.4 isn't nearly as nice as the background bokeh from the Sigma. I had a nice trip and a fun experiment anyway.

You can go back to the first post and compare the background to the Zenitar. Normally I don't use the Zenitar at f/2.8. here i did so to be able to look at the DOF differences. Here I wanted minimum DOF to isolate the subject from the background - something extreme wides aren't any good at.

Over at DPR Ron (distudio) suggested another projection method. All pictures above (except of the Zenitar one which is uncorrected) are shown with equirectlinear projection using PTGui. Rob suggested a Transverse Mercator projection instead.

First a common rectilinear version.

Same picture as above but unfixed, rectilinear projection

Rob grabbed the rectilinear version above and posted a Transverse... something version. it came out like this:

[img]thanks to Rob[/img]

Well, I don't know... to be continued
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