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#1
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current replacement for slide projector
I've been out of touch for more decades than I care to admit. At some
future point I must be able to project digital images onto a screen, but it seems the days of the 35mm slide projector are over. What is now the best way to project digital images onto a screen? The digital projectors one can rent apparently only handle video formats, but I suspect that I could somehow connect such a projector to a laptop on which I have stored digital images. How does one do that? Sorry for the naive question, but this is just not the kind of thing I have ever had to worry about. -- Haines Brown, KB1GRM |
#2
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current replacement for slide projector
Haines Brown wrote:
I've been out of touch for more decades than I care to admit. At some future point I must be able to project digital images onto a screen, but it seems the days of the 35mm slide projector are over. What is now the best way to project digital images onto a screen? The digital projectors one can rent apparently only handle video formats, but I suspect that I could somehow connect such a projector to a laptop on which I have stored digital images. How does one do that? Sorry for the naive question, but this is just not the kind of thing I have ever had to worry about. Data projectors can be used to project any image, not just video. Make sure that the projector that you're looking at isn't just a video projector. Another alternative is to burn a DVD with your picutres on it and play it in and ordinary DVD player connected to a nice, large TV. |
#3
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current replacement for slide projector
dj_nme writes:
Data projectors can be used to project any image, not just video. Make sure that the projector that you're looking at isn't just a video projector. Thanks for the reply. It's good to know that some (but not all) projectors can handle fixed image data as well as video. But how does one get that data (on a laptop or burned onto a cd) to the projector? I assume it has no cdrom drive. -- Haines Brown, KB1GRM |
#4
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current replacement for slide projector
On Mon, 15 Jan 2007 16:04:03 -0500, Haines Brown
wrote: dj_nme writes: Data projectors can be used to project any image, not just video. Make sure that the projector that you're looking at isn't just a video projector. Thanks for the reply. It's good to know that some (but not all) projectors can handle fixed image data as well as video. But how does one get that data (on a laptop or burned onto a cd) to the projector? I assume it has no cdrom drive. There are projectors that plug into the monitor connector of a computer. They project whatever's on the screen. They also cost considerably more than a Carosel. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Retired Shop Rat: 14,647 days in a GM plant. Now I can do what I enjoy: Large Format Photography Web Site: www.destarr.com - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
#5
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current replacement for slide projector
So the alternatives for presenting a slide show seem to narrow down to: 1. Burn a slide show onto a DVD disk, and then hook a DVD player to a TV set to display it the show. This has the advantage of the inclusion of sound. If the DVD is played on a computer, then the method below would allow it to be projected. 2. If one wants to project to a screen, a digital projector can be connected to a TV set output or to a computer's monitor connection to project a slide show being run on the computer. With a quick look at a few projectors in the market, I find that they come with a Mini D-sub 15 connector. Am I correct to assume that this connector is for a computer video connection, and so that the great majority if not all digital projectors can be hooked to a computer's video output as well as TV output connectors? Your statement seemed to imply that there are projectors that can't be so connected. Perhaps they are older or cheaper models. You also said they cost considerably more than a Carosel, but the current price of $600-700, seems a lot less than it was a few years ago. -- Haines Brown, KB1GRM |
#6
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current replacement for slide projector
"Haines Brown" wrote in message ... So the alternatives for presenting a slide show seem to narrow down to: 1. Burn a slide show onto a DVD disk, and then hook a DVD player to a TV set to display it the show. This has the advantage of the inclusion of sound. If the DVD is played on a computer, then the method below would allow it to be projected. 2. If one wants to project to a screen, a digital projector can be connected to a TV set output or to a computer's monitor connection to project a slide show being run on the computer. This is from 2003, but is essentially accurate: "DIGITAL PROJECTORS: Unfortunately digital projector technology as of 2003 is still too crude for serious still photographic images. I have worked with $200,000 digital cinema projectors and these give swell color and dynamics, but unfortunately don't have enough resolution for still images. The top digital cinema projectors today are still limited to 1,280 x 960 resolution which is great for moving images, but still too low for a good still image. Your eye sees far more detail when the subject is not moving. As of November 2003 TI is introducing the M25-based digital cinema 2,048 x 1,024 which sells for around $100,000. Likewise, the $2,000 projectors used by businessmen for presentations look great for graphics, but unfortunately are also limited to the same resolution and, unlike the digital cinema projectors, have awful color. The business projectors you are likely to borrow from your office or buy today at best have a mercury or metal halide or HMI lamp, which are seriously deficient in red. This gives them a brilliant bluish white color that makes them look extra bright and impressive for boring bar charts of sales figures, but make your reds look dull and dark. If you borrow one of these I'd try putting a pinkish gel over the lens to try to add back in some of the deficiency in red. If you're a real hacker you could try to profile it. Of course the older dim LCD projectors are all obsolete today and the DLP ones are the way to go. Watch out: I know these look great for business presentations because I use them for this all the time. When I realized before doing a business talk that I could fire up Photoshop and see my work on the big screen I realized what is only obvious after you try it: there are not enough pixels for real pictures. You can see the individual pixels on many of these which looks fine for graphics, but looks hideous for real pictures. The problem with the under $100,000 projectors is the light source. If you can find a projector with a commercial motion picture xenon arc or halogen light source you'll be OK for color except that you'll still too low for resolution. Avoid the vast majority of projectors with HMI lights, which are all the ones I've seen for business use. I'm warning you: I've had access to some pretty exotic projectors as part of my real job in Hollywood and they look bad for still photos, even if movies and business charts look spectacular." http://www.kenrockwell.com/tech/filmdig.htm |
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