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Photography Question 
Darlene Christensen
BetterPhoto Member Since: 7/30/2003
 

I can see the pixels


I've just started shooting with my new Canon 10D (in fact I'm still reading the manual!) I took a few shots of the Napa mustard fields for a contest entry. I have a Canon 28-135 lens and tried a few shots by zooming in. When I uploaded, adjusted, and printed them out 4x6 size..I can see the pixels in the blue sky. I read it was better to NOT zoom in with a digital..but I thought with a SLR and good lens that would not be a problem anymore. Any help?


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3/2/2004 12:34:07 PM

 
John Byers   Sounds like you may be using a low resolution setting on your 10D. What is the size (in pixels) of the image that you're printing at 4x6 inches?


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3/2/2004 12:59:38 PM

 
Darlene Christensen
BetterPhoto Member Since: 7/30/2003
  I'm using the "auto" setting on my camera and the AF setting on my lens. Shouldn't the camera choose the correct exposure etc? Until I'm used to the camera I figured choosing the auto would be best. I would like to print an 8x10..but if the 4x6 shows the pixels..the 8x10 would be worse huh? Is there any way to fix the image?


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3/2/2004 1:17:46 PM

 
John Byers   The "auto" setting on the 10D should be producing 3072 x 2048 pixel images, which should be fine for printing an 8x10. A print won't be "showing pixels" unless the print resolution is significantly less than 200 pixels/inch. Are you cropping the image or printing the full image? What photo editing application are you using to print the image?


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3/2/2004 1:56:06 PM

 
Darlene Christensen
BetterPhoto Member Since: 7/30/2003
  I only cropped the image a little..not much..just to get some weeds off the right side of the shot. I uploaded the image to photoshop..used the auto settings to correct (that's all I know how to do so far) and saved to my photo program called "ScanSoft". I then opened the image in Microsoft Picture It (I know that program better than Photoshop right now) and just tweaked it alittle. I named it and saved it back into ScanSoft under another file name as a TIFF file.


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3/2/2004 3:04:01 PM

 
Davin Edridge   Hello All,

Are you printing your images at 300dpi?
As mentioned above - if you have not changed the dpi of the photo you wish to print - you will encounter problems,
(changing the dpi is done in your computer photo editing software - not your camera)
I believe that they are only 72dpi out of the camera.
Try changing your image size to 6 x 4 at 300dpi, and printing at that size, to see if it solves your problem

Regards,
Davin
www.davin-photography.com


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3/2/2004 7:19:13 PM

 
Gregory LaGrange
BetterPhoto Member Since: 11/11/2003
gregorylagrange.org
  Auto on a D10 even picks the file size?

Turn the camera on, press menu, and see what it has listed for "quality" on the monitor to see what file size and image quality you're using.


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3/2/2004 8:41:00 PM

 
Darlene Christensen
BetterPhoto Member Since: 7/30/2003
  Thanks to all who responded! Gregory, I checked the menu options and changed the "quality" to the highest "Large". I now have my UV filter attached...so I'll try some shots again.

Just an FYI..this is a GREAT site to find all kinds of information! I read all the new questions every day and have learned a great deal.


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3/4/2004 12:37:26 PM

 
Gregory LaGrange
BetterPhoto Member Since: 11/11/2003
gregorylagrange.org
  If you saw pixels on a 4x6 you must have been in the small/ruff file size range.
You'll find this out but take note of the lower amount of pictures that you'll be able to fit on the flash card at the large/fine size.


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3/4/2004 12:49:25 PM

 
Darlene Christensen
BetterPhoto Member Since: 7/30/2003
  Man you're not kidding it cuts down the amount of pictures! By approx half! I have a 256MB CF card and with the quality set at "Large-Normal" (which is what it was on) I get about 176 shots. Changing it to "Large/Fine" it cuts them to 89 or so!
I'm wondering if it's my printer that's the problem..or my editing. I'll try and upload the picture (later today) and maybe you can give me some insight?


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3/4/2004 1:48:41 PM

 
Gregory LaGrange
BetterPhoto Member Since: 11/11/2003
gregorylagrange.org
  If it was on large/normal, I still wouldn't think that a 4x6 would be pixelated. What was the file size the first time you saved it? Because now it's sounding like you saved it as a jpeg file that was too small.


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3/4/2004 3:21:02 PM

 
Wing Wong
BetterPhoto Member Since: 2/8/2004
  Hi Darlene!

Btw, congratz on owning such a great camera!

Some thoughts:

Zooming on a digital camera is fine. The problems that people talk about is something called "digital zooming" or cropping a shot and resizing in-camera. If you are only zoomin with the zoom ring on your lens barrel, you will be fine.

Pixels in your print. When you resized your image to be printed on the printer, depending on your software, you will want to make sure that the "dpi" is at least 250. Sometimes, when resizing, in photoshop, the "resample" checkbox is checked and the image's resolution is at 72dpi(screen resolution) and if you were to resize the image like that to 4"x6", then you will see pixels.

For another shot, when you are about to print, go to the image resize and uncheck the resample box at the bottom of the window. Then, enter in the width/length dimensions. You might notice the image resolution/dpi change. As long as it is above 250 or so, your prints should come out fine.

If you see pixel spots in the clouds/sky or other light colored areas where smooth gradations and continous tone is required, you might want to see if you are printing at your printer's highest quality setting.

Good photo printers include Epson's C80/84, the Photo and Color Stylus printers, and various Canon 9xx/9xxx series printers.

Even a picture at 2MP should print just fine at 4"x6", so if I had to guess, I would chalk it up to an image resizing problem.

8"x10" photo prints are possible from a 2MP camera(with much work). Your 10D is a 6MP digital camera and should be able to produce shots up to 13"x19" with great quality. 4"x6" should not be a problem. ^_-

Good luck!


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3/4/2004 5:38:53 PM

 
Darlene Christensen
BetterPhoto Member Since: 7/30/2003
 
 
 
OK..I'm going to try and upload the shot I've been talking about! Hey Wing Wong..thanks! I KNOW this is a terrific camera..I'm working hard to teach myself how to use it! :) Ya know, I've just used my editing software to "save" my image. I've not really been aware of "how" it was saved! How do I find the dpi? I mean I know when I scan a picture it's 300dpe (I set it)..but with the digital upload..how do I know? I've been using Microsoft Picture It..but have now changed to Photoshop Elements (a learning curve is in progress!). I'm printing on a Epson C60. I've had good luck with it..and it was cheap too! :)
Hey guys..you're the greatest..thanks for the help! Oh, and keep it comin' :)


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3/4/2004 6:52:19 PM

 
Gregory LaGrange
BetterPhoto Member Since: 11/11/2003
gregorylagrange.org
  photos for web viewing look fine in small files. Printing them requires larger files. Like the ones on my web site are aroun 250KB, but if I made a print with it, it wouldn't look good at all.
I have photoshop 5.5, so it should be real close to elements. Under "image" click on image size. The image size window has 2 boxes at the bottom that says resample, and constrain proportions. If you uncheck resample, when you change the size of the photo with the print size part, not the pixel dimension at the top, then all the pixels will be squeezed down into a 4x6, and the resolution will go up. That's one way to change resolution.
Or you could leave the resample box checked, put in your size, and then type in what resolution you want in the resolution box.
Another way is with the options window, when you use the crop tool, you can check the "fixed target size" box. Then put in the dimensions you want and the resolution. When you crop, the picture will go to that size and resolution.
To get to the options window, go under "window" at the top, and click "show options".


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3/4/2004 10:10:26 PM

 
Darlene Christensen
BetterPhoto Member Since: 7/30/2003
  Thanks so much for the great information..everyone! I'll play around with my options this weekend and let you know how it comes out!


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3/5/2004 2:11:44 PM

 
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