Archived posting to the Leica Users Group, 2008/09/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Ted, I almost forgot one other suggestion you can try that is immediate and only requires your judgement. All video projectors come with a remote control giving you access to it's adjustment menu. You can project an image from your laptop onto the screen and open the color adjustment menu. This will give you the ability to adjust color saturation and tone. This may permit you to fine tune the color and save this setting for your presentation. Check that your new setting works with multiple images. Sometimes an adjustment will make one image look better but others worse. Also turnthe projector on for at least 5-10 minutes before making any adjustments. Leave it on for 10 minutes to allow the bulb and electronics to stabilize before your show. Depending upon the size of the room and audience, a bright projector (2000 lumens or more) is better - giving your images more snap. Better projectors also have contrast ratios greater than 1500:1. If the room and audience are small, a projector that is too bright will actually wash out your images. Most projector lenses are merely adequate for the task. Remember the Leica Pradovit premium projection lenses used? Leica just announced a re-badged video projector with a huge lens on the front. I'd get one if the list price wasn't estimated to be $12,000. A little too rich for me. Hope this helps. Richard Clompus, OD Florida (flat & sunny most of the time) Sent from my iPhone On Sep 21, 2008, at 7:45 PM, Richard Clompus <rclompus@mac.com> wrote: > Ted, > > Like Brian, I use PowerPoint and Apple's Keynote. Keynote is a giant > step up from PowerPoint giving your presentations an almost video > like quality - especially when it comes to transitions. You can also > export your slide show as a video (mov QuickTime file), PDF or as > jpgs. > > Video projectors are your weak link. Most portable projectors (DLP > or LCD) are limited to SVGA or XGA resolution. Colors are really > hard to standardize - especially reds and yellows. Calibration > helps but even this will shift depending upon temperature and age of > bulb. I use a $50,000 projector in a larger lecture hall in a > teaching Institute I manage for doctors and the images still could > be better. Someday we'll have HD projectors - but not yet for mere > mortals. I recommend image sizes no bigger than 200k per slide. I've > found making them bigger doesn't improve the projected image. Try > the same image as a 200k image and again as a 1 mb image. If you > don't notice a difference, go with the smaller size. > > I love slide projectors but they don't work with digital files. > > Be well, > > Richard Clompus > Florida > > Sent from my iPhone > > On Sep 21, 2008, at 5:10 PM, Alastair Firkin <afirkin@afirkin.com> > wrote: > >> Ted, I'm no expert, but the screens will only display a limited >> pixel number and 1024 sounds about right. I don't think it will >> "harm" the presentation to have larger files put in (I suspect it >> will just "adjust" them anyway, but as mentioned they "may" load a >> little slower. If it look OK on the computer screen, I've always >> found it looks fine when projected, so as Steve says "don't sweat" >> >> Cheers >> >> --- tedgrant@shaw.ca wrote: >> >> From: "Ted Grant" <tedgrant@shaw.ca> >> To: "'Leica Users Group'" <lug@leica-users.org> >> Subject: [Leica] POWER POINT QUESTION? >> Date: Sun, 21 Sep 2008 10:38:35 -0700 >> >> Hi folks, >> >> I'm sure we have a "Power Point Programme" person out there >> somewhere who >> can answer this question, please. >> >> >> >> I know when sizing horizontal images the width should be 1024 pixels. >> However, not being a wizard at this because in the past I supplied >> the >> pictures, another body put it together. >> >> Now I'm alone and lonely I have to do it myself. :-) >> >> The question is.. An image 2700 wide looks beautiful on the >> computer screen >> from an image 9" X 6" inches, perfect fit for screen and as the >> show looks >> when clicked through. >> >> However, there's a mix of 1024 and 2700 sizes in the show and it >> doesn't >> appear you can tell the difference. But is this going to be a major >> flaw >> when the images are shown through a projector? Or should I go back, >> open >> each 2700 image and re-size? Big pain in the butt. :-( >> >> However, it will be done if it avoids a screw up during projection. >> >> Thank you any one who knows the answer to this. >> >> ted >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information