Question about Canon PowerShot SD750 / IXUS 75 Digital Camera

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180 dpi everytime i upload images to my computer from the camera it always comes out 180 dpi. Is there no way for this camera to capture 300 dpi? ddomondon@sbcglobal.net

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  • nathanhues Sep 08, 2008

    on the canon site it claims that -

    A 7.1 Megapixel CCD sensor captures every scene with razor-sharp detail, for photo quality prints up to poster size.

    how can this be possible with a maximum resolution of 180DPI? (i have searched without success for info about how to increase this and found nothing except other users asking the same thing and getting no answers)


  • Anonymous Jan 24, 2009

    I want to take 300 dpi images with my Canon SD750 and it only gives me 180??  Cannot find any info on it.

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The dpi-value of a camera is meaningless. It is a fictitious number.

A photo has no dpi, only pixels.
Only prints has a dpi/ppi.

See my article:
Misunderstandings about dpi - http://www.dpiphoto.eu/dpi.htm
(Also in Dutch - see homepage)



Posted on Sep 16, 2008

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Are you sure that the menu set-up in the camera is set to give a large enough amout of resolution when taking the pictures?

Did you check the software you are using to make sure that there is no mode set to make picture compression?


Jerry G.

Posted on May 16, 2008

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Why possible is 300 dpi printing images and text matter


What is DPI PPI and Why Do They Matter
To some extent, we're all photographers these days. With a camera on every phone and digital SLRs coming down in price, we've all got a trove of photos waiting to be shared. When it comes time to share online, print, or email our favorite images, many are unsure about how to set the image's resolution...
If you've found yourself in this spot, don't worry - dots per inch (shortened to DPI from here on out) is a concept that even confounds some professional graphic artists. Here's a primer DPI so you can stop worrying about technology and start sharing your photos.
Getting started
Digital photos are comprised of pixels, much like the individual boxes on a sheet of graph paper. DPI tells you how small those pixels will be when the image is printed. For example, "300 dots per inch" means that 300 pixels fit across each inch. If your photo is 600 pixels tall by 900 pixels wide, for example, it would come out at 2" x 3" inches if you were to print at 300 DPI. Keep in mind that most digital photos are several thousand pixels in either direction, but for the sake of simplicity, we'll use the more manageable 600 x 900 pixels.
Separating pixels from presentation
It's important to separate DPI from the raw pixel dimensions, and this is where even the pros slip up. DPI is not an indication of image quality or clarity. When you print that 600 x 900 pixel image at 300DPI, it'll likely look pretty sharp, because every inch is densely packed with pixels.
Now imagine printing that same image, with the same number of pixels, at a mere 30 DPI. As each inch would have only 30 pixels across, the density drops immensely and the image prints much larger: 20" by 30". What was once sharp now appears blurry, because each individual pixel is now ten times larger than before. By separating DPI from actual pixel count, we can understand that raising DPI doesn't magically improve a photo. DPI simply takes the same data (the original pixels) and alters how we'll view them.
Pin it It's all about context
Another factor is viewing distance. Just think of the eye chart at your doctor's office. If you're a bit nearsighted, the tiny letters at the bottom are illegible specks, while the letters at the top are easily discerned. In actuality, each tiny letter may be half an inch tall, but the distance makes them seem microscopic. Now consider our 600 by 900 pixel image. When we printed it at 30 DPI, the giant pixels made it look blurry. Were we to look at it across the doctor's office long hallway, however, it may look just as sharp as the 300 DPI print did in our hands. This illustrates how DPI is more about context than quality.

Pin it Pixels Per Inch
You'll notice I've been talking about DPI in relation to printing only. This is because while printers can produce a variety of DPI settings, a computer display's resolution is fixed - its pixel density is part of the physical hardware, and cannot be altered. When talking about displays instead of print, most use the term PPI, or "pixels per inch."
If you intend to put your 600 x 900 pixel image online, switching the resolution to 30, 300, or 3000 PPI is completely arbitrary, because the computer display can't change its density. As modern desktop displays usually have a PPI in the low 100s, the 600 x 900 pixel image will appear around 6" by 9" (mobile displays may be much higher). Of course, your web browser could display the image smaller if need be, but it will do so by averaging and eliminating pixels, not squeezing them to be physically smaller. This is why it's always important to keep your end goal in mind when working with images.
In summary:
• An image is defined by its pixel dimensions - # pixels tall by # pixels wide
• DPI/PPI determines the scale and pixel density at which image will be displayed
• What appears blurry from close up may look fine at a distance, so consider how an image will be seen
• Printers can produce a range of DPIs, while displays have fixed resolution
Whether you're a blogger dealing with an upload limit or are just trying to print a photo to hang on the wall, understanding DPI/PPI can go a long way. I hope these tips help you feel more in control of your images and how you share them with the world!


Oct 07, 2014 | Canon LASER SHOT LBP-2900 Printer

1 Answer

How do I change the dpi of this camera?


The digital cameras capture images with number of pixels that that image sensor allows. They usually dont have DPI adjustment. However you can adjust capture resolution from 5 Mega Pixel to 1.1 Mega Pixel. Please refer to Page 24 and 25 on the following Owners Manual for this camera.

Feb 24, 2011 | Kodak EasyShare C315 Digital Camera

1 Answer

Change 72 dpi to 300 dpi


Your camera cannont shoot at either 72 dpi or 300 dpi. It shoots at whatever resolution you have it set for. Dpi (dots per inch) is a print specification, denoting how large (or small) your pictures are printed.

The DSC-W100's highest resolution is 3264x2448. Printed at 72 dpi, it can generate a print bigger than 40x30 inches, albeit a bit grainy. Printed at 300 dpi, you can generate 10x8 inch prints.

Again, dpi is a measure of how you print pictures. It has no bearing on how you capture images with your camera.

Mar 15, 2010 | Sony Cyber-shot DSC-W100 Digital Camera

1 Answer

Quality of pictures when printed are very grainy,


the problem must be because of the resolution dpi value. it does not matter if your image is BIG and looks great on your comp, but if the dpi value (which can be found by Image->properties thru the right-click option) is lower than say 300, the image won't look good on print.

Dec 11, 2009 | Canon Cameras

1 Answer

Photo resolution


Sony H1 takes photos at 72 dpi by default. But the picture quality will be good. if you want to convert it to 300dpi open the picture in adobe Photoshop and select image size and change resolution to 300 dpi. but the file size will be very high to up load. if you want to reduce the file size select the image size in adobe photoshop and reduce it according to your requirement. if my solution proves good please rate it. Regards.

Feb 04, 2009 | Sony Cyber-Shot DSC-H1 Digital Camera

1 Answer

Creating a 300 dpi x 300 dpi file


You need to be able to change the DPI setting in the image file. This can be done in most complete photo editors, though they tend to name the procedure in different ways. In Corel Photo-Paint, you would look for "Resample Image". In the open source photo editor Gimp, look for "Scale" under "Image".

In all such procedures, what you want is to set both the vertical and horizontal DPI values to 300, apply them, then save the image. Please do save it to a different filename, since you lose some quality of JPEG images every time they are saved.

Sep 18, 2008 | Canon Rebel XT / EOS 350D Digital Camera

1 Answer

How do I increase the dpi on TZ5


Hi - When talking about resolution in digital photography there are two main meanings.
One is the "pixel count resolution" and the other "embedded resolution". So for example your camera could record 2272*1704 as the actual pixel count resolution and set 72 as the embedded resolution that tells other software (for example 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 in your software to 300 for printing. In Photoshop you can change the default to 300 by going "edit", "preferences", "units & rulers" and setting the values for "new document preset resolutions".

So for your camera the embedded resolution is 180 which you can only change in your PC software.

This is a complex subject, I recommend looking at the following web page:

http://www.fotofinish.com/resources/centers/photo/resolution.htm

Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!

Informatica

Sep 13, 2008 | Panasonic Lumix DMC-FZ5 Digital Camera

2 Answers

Setting dpi on canon ixus 800 IS


You can download manuals here.

As dpi is generally a printing specification, the size you set on your camera depends on what size prints you want to make. If you want to print 4" x 6" prints at 300 dpi, you can set the size to M2. If you want to print 5" x 7" prints at 300 dpi, set the size to M1. Anything larger, set the size to L. With L selected, an 8" x 10" will still be about 300 dpi, but any larger print will be at less than 300 dpi.

May 15, 2008 | Canon PowerShot SD500 / IXUS 700 Digital...

1 Answer

Resolution of Stiil Photographs.


the resolutiion dpi has little to do with the camera, its more about printing/displaying - that is just the screen display resolution. you can change that to 300 PPI (DPI) in most imaging applications. the important thing is the pixels you have length and width so 1000 pixels x 1000 pixels is the key to this whats the max pixels of the camera - that would give you the resolution. now to print an image onto paper the acceoted standard for top quality is 300 PPI so 1000 pixels width divided by 300 pixels per inch ppi = 3.3 so you can print at 3.3 inches. Now you may even be able to get away with as low as 180 PPI on some prints and depending on how far away it will be viewed - so this needs to be played with. - can you reply here - with a comment and tell us 1) how many pixels you have 2) what image editing software you are using 3) how big you would like to print

Apr 17, 2007 | Sony Handycam DCR-TRV350 Digital Camcorder

2 Answers

How do I setup the camera to save pics above 180 dpi resolution?


Select image>image size, make sure that the 'resample image' box is unticked and change the resolution to 300 dpi. This will automatically change the image size.

Sep 14, 2005 | Canon PowerShot SD200 / IXUS 30 Digital...

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