Question about Canon Rebel XT / EOS 350D Digital Camera

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Resolution problems I have my Cannon XT set at large under quality but no matter what the quality setting is set at all my pictures once downloaded have a PPI of 72. I have tried everything possible but still get only 72 PPI pics. I am using Cannon software to download the pictures and have also tried Adobe. What can I do to fix the problem?

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Sometimes if you open up a photo in Photoshop, or another bitmap program, it'll display your photo at 72dpi. That's OK because your photo is likely to also be very large in size. Reduce it's size while at the same time allowing those pixels to crunch together- effectively giving you your print size and resolution that you need.

Posted on Mar 31, 2008

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A quick and easy solution would be to use a CF card reader. You will find that the transfer rates are higher too. With a card reader you will be able to copy your images to any system running Windows, Mac OS or Linux without installing the camera's software.

Posted on Dec 26, 2007

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1 Answer

Haing taken photos on what was thought to be the 'large' setting the photos have come out only 72 pixels and I want to know if it's possible to change them into 300 pixels. or if not possible, how do I...


Set your camera to take pictures at the maximum megapixel level. Later, if you need to lower the resolution of your pics for whatever purpose, you can do that in any photo-editing program.

Aug 01, 2010 | Cannon Cameras

Tip

LPI, PPI,DPI conversions


Here is a conversion chart for DPI (Dots per inch) to LPI (Lines per inch) or PPI (Pixels per inch)

180 DPI................31 lines/inch or 68 PPI
360 DPI................63 lines/inch or 138 PPI
720 DPI................127 lines/inch or 280 PPI
1440 DPI..............255 lines/inch or 561 PPI
2880 DPI..................510 lines/inch or 1122 PPI

If you plan to enlarge your image, it is better to enlarge it when you're scanning rather than in your application. Each time you modify
an image, you lose some quality. Keep in mind when you enlarge a small photo, such as a 35 mm slide or wallet-size photo, you'll need
to scan at a high enough resolution to retain your image quality, but not so high that your file size is too large to be efficient. You must
manually adjust the resolution (dpi) to maintain the same image quality when you resize your image. For example, if you have a 300
dpi 2 x 2-inch image that you want to enlarge to 4 x 4 (a factor of 200%), increase the Scale setting to 200% or change the resolution to 600 dpi.

on Jul 19, 2008 | Epson Perfection V200 Flatbed Scanner

1 Answer

No matter what the set resolution all pictures come out at 72 psi. I have tried resetting to factory defaults but was unable to accomplish this.


PPI (points per inch) is an output specification and is irrelevant as far as the camera is concerned. The camera has to put some number in there, and it uses 72 since that's the value usually often for computer monitors. The only time it really means anything is when printing the picture.

Jul 03, 2010 | Sony Cyber-shot DSC-W35 Digital Camera

1 Answer

How do I take a picture at 300dpi


The DPI are not a user allowed settings. Normally DPIs are factory defined.
You can change the DPI using software. Normally the image administration software and advanced softwares can allow you to change it.

Remember an important issue: DPIs are a printing matter not an image quality matter. Yo can set an image to 300 DPI and the same to 72 DPI and you will see no difference between both images.

A good camera and your skills will allow you to take high quality images.

Jul 13, 2009 | Canon PowerShot A630 Digital Camera

1 Answer

Why does the FinePix E510 pictures download from the camera at 72 dpi when the camera was set to take 500 megapixel photos? I cannot find any way to adjust this in the finepix manual or in online help. I...


A couple of things - I don't think you mean 500 megapixels (that is a lot!) but I assume you mean you expected a high resolution image. You may have it! The dpi setting is largely irrelevant (for photographers) as it simply relates number of pixels to a (notional) print size. Thus an image that is 3000 pixels wide (say) would print out to 10 inches at 300 dpi (3000/300) or 40 inches (approx) at 72 dpi (3000/72). the image has the same information /resolution - it's just "spread" further on the larger print. You can easily change the nominal dpi in e.g. Photshop Elements but it won't affect your image quality.
If however you are getting low resolution images when setting the camera differently that's something different. I would need extra info to help there but pssibly check if the camera was set to RAW and maybe you were looking at the (small) JPEG usually saved with it?

Jun 27, 2009 | Fuji Finepix S5800 Digital Camera

1 Answer

Re-Sized Photos are Grainy


Hi,

This camera takes pictures with a Ppi of 72. That is why the pictures look huge on the screen. To get good quality prints you need to have at least 200 ppi, or even better, 300 ppi.

Or, the contrast of the pictures may be to low. I have an FZ7 too, and I always tweak the contrast and color saturation before outputting.
----------------------------------------------------------------------------
1. images straight from the FZ7 are generally low in contrast.

2. Pictures that are low in contrast might not look too bad on screen, but when they are printed they will look slightly greyish.

3. Low ppi pictures look fuzzy in print.

Maybe you can post a sample original picture??

Jul 06, 2008 | Panasonic Lumix DMC-FZ7 Digital Camera

2 Answers

DPI resolution


menu- camera set up- picture quality- try to locate picture size using menu button switch. RAW file is the best but it eats too much memory.

Sep 07, 2007 | Canon Digital Rebel XT / EOS 350D Body...

1 Answer

Minolta Dimage S414 Problem with resulution


What you are seeing is the difference between "pixel count resolution" and "embedded resolution". So in your example 2272*1704 is the actual pixel count resolution as recorded by the camera & 72 is the embedded resolution that tells the software (in this case photoshop) what the intended use of the picture will be. 72 ppi is the default for web pictures. You can change this in photoshop by going to the "Image" tab & select image size. The window that opens will show you the pixel dimensions i.e. pixel count resolution and the document size & resolution 72. You just change it to 300 for printing. You can change the default to 300 by going "edit", "preferences", "units & rulers" and setting the values for "new document preset resolutions". This is a complex subject, I recommend looking at the following web page: http://www.fotofinish.com/resources/centers/photo/resolution.htm

Aug 08, 2007 | Konica Minolta DiMAGE S414 Digital Camera

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