----- Original Message -----
From: "Willem-Jan Markerink" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, December 23, 2006 1:20 AM
Subject: EOS Focus-bracketing & layered/stacked images to increase DOF
After studying the fascinating concept of layered/stacked images, to
achieve an infinite large DOF, and vaguely recalling that *some*
later DSLR's (or even compacts?) have focus-bracketing....
....I was wondering how long it would take before this stacking-
software might become part of the OEM image-software, external or
internal, in combination with such focus-bracketing.
Some of these stacking programs & fascinating samples:
http://www.heliconfocus.com
http://www.heliconfocus.com/pages/focus_overview.html
Btw, the focus-bracketing could even have a manual mode, for non-AF
lenses, like dedicated microscope stuff....if external image-software
can detect the exact sharp area within a layer, then internal
software should be able to give a signal when you run out of the
singular DOF (overlapping DOF is recommended).
Willem
(wondering how well this would work with scanned analog images,
despite the recommendation to use only straight-digital....if only to
test this with 6x12cm panorama frames....turning a Noblex with focus-
option or even macro-diopters into a much more interesting device)
Jan
Bye,
Willem-Jan Markerink
<[EMAIL PROTECTED]>
[note: 'a-one' & 'en-el'!]
Hi Willem-Jan,
A friend with one of Canon's 65mm macro lenses (usable in the 1:1 to 5:1
range), used it on my EOS 10D and took something like 5 or 6 focus stacked
frames for each of a stereo pair of some quite small items in the extreme
close-up region. Both sets were then put through.Heliconfocus, and printed
as a stereo pair. The result on some of his samples were quite stunning
stereo images of items such as lichen.
Malcolm
Milton Keynes, UK
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