Hmm, I'd think that moving the camera on a tripod would be easier than
moving the painting, when it comes to keeping the camera the same
distance from the painting.
Once you position the camera, you might drop a plumb line from bottom
center of tripod, let it hang straight, mark the distance of that point
from the painting, then mark that point. Then measure and mark another
other point the same distance from the painting but out from the other
half of the painting. Then draw a line between the two points and you
have a line to center the tripod on when you move it left/right.
You can minimize the number of tripod moves by shooting top left, bottom
left, bottom right, top right. Then you only have to raise or lower the
camera on the tripod. But you knew that already.
Don't forget vignetting.
On 11/04/2015 01:56 PM, Terry Duell wrote:
Hello All,
I have become involved in a project to help an artist friend prepare an
image of a painting to be used to make giclee prints, and I'm looking
for any thoughts on what I should do to get it right and what to avoid.
To date, my friend has had his paintings photographed commercially, with
a medium to large format film camera, the transparency then scanned on a
drum scanner to produce an image that would print at original size at
300 ppi.
I'll be shooting with a Pentax K-3 II (aps-c sensor), and aim to shoot a
2x2 pattern with about 30% overlap vertically and about 50% overlap
horizontally...that's roughly how it works out from the painting and
sensor proportions.
I'll shoot from a weighted tripod, using pixel shift mode, and at this
stage thinking about using a 150-450 lens at about 300mm.
The intention is to set the painting vertical on a stand, with lighting
each side at about 45 deg.
It is a simple matter to set the camera at the correct height shooting
horizontally, but not quite as simple to ensure we are normal to the
painting in the horizontal plane. I would like to try to minimise any
perspective effects as much as possible. The thinking at the moment is
to move the painting vertically and horizontally on a fixed easel to
align for each shot, rather than move the camera. I think we can better
keep the shots normal to the painting by this method.
That's probably enough to be going on with...any thoughts?
Cheers,
--
David W. Jones
gnomeno...@gmail.com
wandering the landscape of god
http://dancingtreefrog.com
--
A list of frequently asked questions is available at:
http://wiki.panotools.org/Hugin_FAQ
---
You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to hugin-ptx+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/hugin-ptx/563AEBB7.6050702%40gmail.com.
For more options, visit https://groups.google.com/d/optout.
