DPChallenge: A Digital Photography Contest You are not logged in. (log in or register
 

DPChallenge Forums >> Photography Discussion >> Poster Print Problems (PS7)
Pages:  
Showing posts 1 - 9 of 9, (reverse)
AuthorThread
11/08/2006 11:02:43 AM · #1
I just had a 24x36 poster printed from a golf tournament I photographed. There are 28 individual pictures of the teams on the canvass. When I printed the poster, the individual pictures appeared out of focus and cloudy. I used PS7 and had the following:
DPI: 266
Canvass: 24 x 36
each picture was 2240 x 1488 (pixels @300dpi)

On the poster, each of the team photos is about 3" x 5".
What can be done to have the pictures more crisp and clear like the originals, or what did I do wrong? Thanks
11/08/2006 12:26:49 PM · #2
How do you print that big?
11/08/2006 12:28:33 PM · #3
I just made a football poster of all shots I took this season. I saved my poster at 400dpi for printing and all came out clear.
11/08/2006 12:36:45 PM · #4


Message edited by author 2006-11-09 11:29:41.
11/09/2006 11:23:49 AM · #5
when doing a collage like that, you need to resize the individual photos first, save them all at the same DPI.

Set up a canvas in photoshop with the same DPI as the photos. Use layers to add your individual photos.

this should do it for you, if not, check your sharpening on the individual photos before you put it into collage form.

Hope that helps.
11/09/2006 12:21:00 PM · #6
I layed the photos out and with text and other items I added it was about 35 layers. The photos were a different dpi then what I established for the overall image. I will try that, thanks.
I wish I had a printer that size, but at RITZ they offer in house printing on an Epson. Nice quality, but this is the first one I have had printed.
11/09/2006 01:40:00 PM · #7
avoid Ritz or any other 1 hour photo place, they produce garbage and are expensive. Try bayphoto.com. I use them for all my printing. Good prices, much much better quality, cheap shipping $1.50 for orders over $12, mounting options and they package their shipments so they could survive a nuclear winter.

When I did a collage, the photos and the background were different DPI, it had a negative effect, it changes the size of the images in the collage, probably that is why you are getting weird crap on your poster. Luckily my collage was only 3 photos and some text not 40+.

Good luck, but seriously don't go to ritz, you will not be happy even if your file is perfect.
11/09/2006 01:58:58 PM · #8
just to answer the other question posted in this thread...

How can you print that big?
Good question. 1st off, most newer DSLRs can print that big but there are some things that go into making a quality large print.

your image is going to be x number of pixels regardless how large you print. lets say 100pixels for argument sake although it is a much larger number. those 100 pixels are going to be used on a 5x7 or a 10x30. What happens is on the 10x30 the 100 pixels isn't enough so space needs to be filled in or extrapolated. this is done by using surrounding info to get the best filled in pixels.

What this means is that if you have a perfect exposure that is tack sharp, the extrapolated data will be very useable and a great image results. If the exposure is off or the sharpness isn't there or the image is a large crop from teh original, you get a very lousy extrapolation resulting in a crappy image.

To see how large you can print w/o extrapolating any data, open your image in photoshop and go to image-image size, click the resample box so its not checked, type your dpi (use anywhere from 175-300) the other fields will change and you will see how large you can print with the current data.
11/09/2006 02:27:18 PM · #9
Originally posted by Jmnuggy:


To see how large you can print w/o extrapolating any data, open your image in photoshop and go to image-image size, click the resample box so its not checked, type your dpi (use anywhere from 175-300) the other fields will change and you will see how large you can print with the current data.


What he said :-)

A Rebel 300D at 6 megapixels will print up to a 13x20 at 150DPI (about as low as you'd dare go in DPI)**. You can go larger with resampling or with programs like Genuine Fractals, which use AI to guess at what data to used to fill the gaps.

** That is for an image that is meant to be viewed at arms length. With posters you can go lower in DPI, as most are meant to be viewed at considerable distance.
Pages:  
Current Server Time: 04/24/2024 06:02:12 PM

Please log in or register to post to the forums.


Home - Challenges - Community - League - Photos - Cameras - Lenses - Learn - Prints! - Help - Terms of Use - Privacy - Top ^
DPChallenge, and website content and design, Copyright © 2001-2024 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 04/24/2024 06:02:12 PM EDT.