Re: [Leica] 360 degrees of Midway fun at

["Ted Grant" <tedgrant@home.com>]

Hi John,

Thanks ol' buddy.

Just let me say one thing other than praise for great images...... it's all
yours my friend!  :-)

Given your description of what's entailed to produce one image I know I do
not have the patients to create what you've done, well OK, you and your
computer. ;-)

They sure look interesting and very effective. The one that empressed me the
most was the Toronto skyline, as it was so completely different from
anything else I can ever remember.

ted

Ted Grant Photography Limited
www.islandnet.com/~tedgrant
- ----- Original Message -----
From: "Johnny Deadman" <john@pinkheadedbug.com>
To: "LUG" <leica-users@mejac.palo-alto.ca.us>
Sent: Saturday, September 08, 2001 4:17 PM
Subject: Re: [Leica] 360 degrees of Midway fun at


> on 9/8/01 6:53 PM, Ted Grant at tedgrant@home.com wrote:
>
> >>>>> the Canadian National Exhibition.
> >>
> >> http://www.pinkheadedbug.com/360/623-pan-3-crop-flat.jpg <<<
>
> > What I'm surprised at is, the quality and consistency of the exposures
as
> > you matched them to look as though the finished photograph was taken
with a
> > Panon or some type of panoramic moving camera.
> >
> > How long does it take to assemble the exposures to the final product?
>
> the first thing is to shoot the images at the exact same exposure and do
it
> quickly before the light changes. You can get away with exactly ONE ugly
> discontinuity, but it has to be where the pan breaks. You can cover up an
> error this way but at the expense of choosing the center point of the
final
> image.
>
> you pretty much have to use color neg because the exposure variation
between
> a shot into the sun and a shot with the sun at your back is extreme, and
you
> can't stop down/up to compensate
>
> the second thing is to scan them identically with a fixed exposure etc.
> Vuescan is the easy way to do this, otherwise you scan 'em raw and do
> exactly the same manipulations to each image
>
> then the hard work begins!
>
> about 30 mins to set up the control points between the images so the
> software knows how to match them up
>
> about 30 mins to optimize yaw, pitch, roll etc to compensate for camera
> movement between exposures. This is where you find out how well you shot
it.
>
> about 90 mins processing time for the software to churn away and remap
them
> to a cylindrical presentation (I do this on a second computer)
>
> about 10 mins for an action in Photoshop to build the remapped images into
a
> massive layered file and apply the first (very bad) automated stitches
using
> layer masks.
>
> about another 60 mins to do the proper stitches manually, color correct,
and
> produce the final image
>
> but it's fun so it doesn't seem like hard work
>
> (the hardest thing is choosing the spot to take the pan from... if you
don't
> get THAT right everything else is a waste of time. It's really hard....
> trying to find some magic place... there is a greek word for it I think...
> 'omphalos'... the place of power)
>
> sometimes the lens vignetting causes dark bands... to correct these you
take
> the final image into LAB color mode and dodge the lightness channel
> --
> John Brownlow
>
> http://www.pinkheadedbug.com
>
>