wwp@yahoogroups.com:
Re: Full Screen on digital projector??
G. Donald Bain 2004-Oct-19 18:58:00
Dave,
I give presentations like this all the time, in classes and special
outreach events. My largest venue is a classroom for 120 people,
projected about 8 feet wide.
We use a projector with a resolution of 1024 by 768. No problem with
flicker. The image is a bit jerky, but no more so than on a computer
monitor.
Color is lousy - all the projectors are made with PowerPoint type
graphics in mind, and are poor for continuous tone images. Fiddling
with the color controls helps, up to a point. Be wary of long cable
runs, signal attenuation can cause colors to shift, or not work at all.
The impact on the audience is terrific. I get a lot of enthusiastic
feedback. As usual, virtually everyone says they have never seen this
technology before, even Mac users. When cross-examined, it turns out
that almost all have seen little Ipix type stuff on real estate and
travel sites, but didn't make the connection.
Be careful not to spin too fast. Some people get motion sickness - just
closing their eyes is all that is necessary to cure it. Sometimes I
have a pano set to autopan, and just leave it to go all the way around,
but that is usually too slow and the audience's attention lapses if it
is not dramatic in all directions.
I can show about 45 panos in a 1 hour (actually 50 minutes) class
session, if I keep up a brisk pace. Classes where we study the panos
closely (geology, geography) it's more like 30 per hour.
My full screen size versions are more than adequate for projector
resolution. I use QPict as slide show software. I would like to be able
to script a series of panos with custom rotations and dissolves between
them. But, despite repeated enquiries, and assurances that it can be
done, I have not yet found a satisfactory solution for this.
Don
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G. Donald Bain
Geography Computing Facility
University of California, Berkeley
On Oct 19, 2004, at 10:51 AM, Dave 360texas.com wrote:
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> Some auditoriums have digital projectors that display pictures on a
> screen some 70 feet (24m) away. Anyone tried viewing their full
> screen panoramas on a digital projector?
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> If so, was the projector's refresh rate suitable for providing a
> flicker free (.mov or java) display?
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> We possibly have a camera club opportunity to discuss VR photography.
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> Dave
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> ------
> The World-Wide Panorama
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