I agree with Bruce.  Our camera club has used three different
projectors over the years and the screen seems to have as much or more
effect than the projector.

We calibrate with a ColorMunki and that helps, but in out current
location we're stuck with a less than desirable screen supplied by the
facility.  The ColorMunki calibration goes a long way toward helping
get correct colors, but there's only so much you can do with
brightness and contrast when you have a bad screen.

gs

George Sinos
--------------------
gsi...@gmail.com
www.georgesphotos.net
plus.georgesinos.com


On Thu, Dec 20, 2012 at 1:22 PM, Bruce Walker <bruce.wal...@gmail.com> wrote:
> Igor, my interest in projectors has been primarily for watching
> movies, but accurate colour and brightness are big issues for me. I
> own a 5 year old Dell XGA projector and I'm investigating a move up to
> a WXGA (720p). I can't recommend one type over another to you, but I
> can add to your woes:
>
> You need to take the screen into consideration. The screen plays a
> major role in the contrast and brightness, but also the colour
> accuracy.
>
> You also need to consider the source (PC, DVD player, etc.). This will
> affect the colour accuracy. When I recently swapped out my old DVD
> player for a Blu-Ray, all the colours went sideways. I did a rough
> recal by eye but the black point is still wrong and dark scenes in
> some movies look solarized now. Very annoying.
>
> I'd suggest that you should consider the possibility of needing
> calibration up front. Many of the monitor calibrators (colorimeters)
> can be used for front projection too.
>
>
> On Thu, Dec 20, 2012 at 1:00 PM, Igor Roshchin <s...@komkon.org> wrote:
>>
>>
>> Hi All,
>>
>> I am sure that some people on the list have the knowledge on this topic.
>>
>> For the purpose of presenting photo slideshows, which type of projectors
>> are generally better: 3LCD or DLP?
>> Criteria: accuracy of colors (preferably without too much of
>> calibration), high brightness/contrast (so that the presentation can be
>> done with the ambient light in the room.
>>
>> To better define the category, -
>> I am looking at projectors with at least 2000-2500 lumens, and the
>> price range is to stay within $1000-ish. Resolution: at least XGA (1024x768),
>> possibly WXGA/HD-720 (1280x780/720).
>>
>> I've read a few websites with comparisons between the two types (3LCD
>> and DLP).  There are two major problems with those comparisons:
>> 1. Most of those comparisons are several years old, and hence do not
>> reflect the recent changes in both technologies.
>> 2. They are shallow, biased [by the manufacturers of the specific
>> type], or both.
>>
>> Your input, including references to good recent articles on the issue,
>> is greatly appreciated!
>>
>>
>> Thank you,
>>
>> Igor
>>
>>
>>
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