For quick panos, I agree entirely, Chuck - lots of overlap, nothing in the
foreground, it's quite easy (but remember to use the same exposure values
for all frames).
If you *do use a tripod, even with objects in the foreground, parallax
errors (and the need for overlaps) can be minimised by panning the camera
around the optical centre (a.k.a nodal point) of the lens. You don't need
a special pano head - using a focusing stage it is not difficult to set the
axis of rotation, and though it is not the simplest explanation I have seen,
http://www.vrphotography.com/data/pages/techtutorials/technotes/nodalptalign
-tn.html has some helpful images to make the point.
Naturally, the simplest explanation was the best, I have internalised the
message, and cannot now find it again!
And for automated stitching of jpg files, I recommend www.autostitch.net
which is worth every penny it costs, and more. It's free.
--
Piers
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of Chuck Norcutt
Sent: 01 November 2006 14:07
To: olympus@xxxxxxxxxx
Subject: [OM] Re: [photo] Dennisport Sunrise 3
And keep in mind that when taking panoramas of moderately distant scenes
that no tripod or special panormaic head is required. You just need to
overlap frames some 30-50%. I'd go with 50% or maybe even more for the
unobstructed horizon since there's not much detail for the software to
figure out where the seams should go. Nor for you to recognize the points
of overlap in the viewfinder for that matter.
As long as there are no nearby objects to cause significant parallax errors
you can get by working handheld as this one was done. 5 shots at 28mm
equivalent on Minolta A1 using about 50% overlap. Panorama automatically
constructed by PTGui with no manual intervention. I feel a slight tinge of
guilt because it's almost too easy. :-)
<http://www.chucknorcutt.com/chatham/chatham%20panorama.htm>
Chuck Norcutt
Richard Lovison wrote:
> Chuck,
>
> I felt young and alive again, seeing things I've never before witnessed.
> In my 51 years, this was the first sunrise I saw from an
> unobstructed horizon and my first over the open Atlantic. The colors
> were mesmerizing and the photo opportunities were presenting
> themselves faster than I could think. I'm sure I missed far more than I
captured.
> The thought to take a panorama never entered my mind though I agree
> with you that a panorama would have fit the scene. The sky was
> absolutely stunning for almost 180 degrees and was changing
> dramatically every few minutes. I was focused so intently on the
> rising sun that I almost neglected what was happening 90 degrees off
> to the south. That panorama will have to wait till next year. :)
>
> Richard L
>
> Thanks for looking.
>
> Chuck Norcutt wrote:
>
>>Very nice. This one is crying out to be a panorama.
>>
>>Chuck Norcutt
>>
>>Richard Lovison wrote:
>>
>>
>>>Another sunrise shot with the E-1. Hope you enjoy. :)
>>>
>>>http://sylv.inkwell.com.ru/temp/capesunrise3.html
>
>
>
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