Question about Pentax Optio S4 Digital Camera

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Higher res pics on OPtio S4

How can I take pictures on my optio so that the resolution is set to at least 300dpi... I'm taking high res pics but the dpi resolution on all of them is only set to 72... Any help appreciated!!

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So far as the camera itself is concerned, dpi is a meaningless statistic. All that matters is the number of pixels. Apart from file size implications, the more the better. dpi only comes into the situation when you display the image. If you display the image on the screen at '100%', or 'full-size', then (somebody told me) this is roughly, or traditionally, at about 72dpi. If you size a 6 megapixel image to A4, then it's at around 250 dpi (I forget the exact figure but you see what I mean). dpi just stands for dots per inch - it's a measure of how closely or not the pixels are packed together in the displayed image. In theory the closer together (higher dpi) the better. People have in their head that 300 dpi is necessary for a good, detailed print. Actually without very close scrutiny most people can't tell the difference above about 230. The bigger the print you do, obviously the lower the dpi becomes. It's complicated by the fact that most printers will 'resample' the image anyway in their own software, so that even if you are printing a picture at a very low dpi figure, the printer will create dots to make up the deficit, although the result will be a softer image. Which is why you don't normally see pixellation on your home printer, even though the dpi figure may be very low ...

Posted on Aug 30, 2005

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This resolution doesn't matter to most software. It doesn't change the image at all, just occasionally the size it is displayed (only if the software scales the image according to the resolution, which most don't). This having been said, I doubt there is a way to change it in camera. But you could certainly change the XResolution and YResolution meta information with any good EXIF editor. Also, Photoshop can do this too, but it will mess up other things in the meta information. You should be able to script either to apply this change to a number of photos at once.

Posted on Aug 30, 2005

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1 Answer

How to set for 300 dpi


The dpi is not really a camera setting. The camera should usually be set to the highest resolution possible (4000x3000). This capture size would give a print size of approx 13"x10" at 300dpi. That would be considered a high resolution print. If you were printing at "normal" print resolution you could double that print size.

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Canon SD1300 setting for 300dpi size 2.75 x 2.975 how to set camera


It's not a camera setting.
DPI is "dots per inch". This only has meaning when the picture is output (usually printed, but also displayed on a screen). You can make two different-sized prints from the same photo file, and they will have different DPI settings even though they come from the same file.
A photo editing/printing program will let you control the DPI when you print a photo (and some will let you change the value when you save the file).

Mar 29, 2012 | Canon PowerShot Cameras

1 Answer

Canon SD1300 setting for 300dpi size 2.75 x 2.975 how to set camera


It's not a camera setting.
DPI is "dots per inch". This only has meaning when the picture is output (usually printed, but also displayed on a screen). You can make two different-sized prints from the same photo file, and they will have different DPI settings even though they come from the same file.
A photo editing/printing program will let you control the DPI when you print a photo (and some will let you change the value when you save the file).

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1 Answer

Canon SD1300 setting for 300dpi size 2.75 x 2.975 how to set camera


It's not a camera setting.
DPI is "dots per inch". This only has meaning when the picture is output (usually printed, but also displayed on a screen). You can make two different-sized prints from the same photo file, and they will have different DPI settings even though they come from the same file.
A photo editing/printing program will let you control the DPI when you print a photo (and some will let you change the value when you save the file).

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Can i change the compression and ratio on my canon powershot a570 is to shoot in 300 dpi?


Not really, since "300 dpi" is a print resolution specification. The camera takes pictures at whatever resolution you have set (0.3MP to 7.1MP on the A570).

If you print a 0.3MP photo at 300dpi, you'll get a picture 1.6 inches by 2.1 inches (smaller than a business card). If you print a 7.1MP photo at 300dpi, you'll get a picture about 8 inches by 10 inches. You can also get an 8x10 from the 0.3MP if you print at 60dpi, but the result will be rather grainy.

Again, "300 dpi" has no meaning to the camera.

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1 Answer

Want Increase resolution from 72dpi to 200 dpi


increase in dpi will not increase the resolution. dpi = dots per inch for example you have a res of 1024x768 at 72dpi you get a printed image of 14.2x10.6 inch at 300dpi you get a printed image of 3.4x2.5 inch
only thing possible is to interpolate the image. but thats **** in my opinion.

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1 Answer

Stops taking pictures after approx. 128-130


Hi, Sue,
Not really sure on this, but if where he bought cam will take it back,try it...
However, it may not be the cam, but different resolution settings on the two different cams. Digital cams by different manufacturers format SD cards using different means; some allow more memory space on card for formatting than others..and if the game cam is set at a higher resolution than the other cam, then the 2nd cam might use space 1st cam left avail.i.e., say cam "sets aside 4mb of memory to format card, but only uses 2mb of this space. Now, the game cam is set for high resolution and take 130 pics @ 15mb each..15x130=1950mb,+ 2mb left by game cam=1952mb(1.952gb), or about 50mb of space left on card...put it into cam set for lower res. and might get several more pics before card was really full...be sure all is equal...both cams, and card,ect. 128-130 pics @ high resolution ain't bad....on a 4gb SDHC card with my I-40's set for High Res., I can get 1000 pics;@ enhanced and I get only about 300. Set at low res., and # goes way up.Hope you understand all this.
ron

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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

Help :)


Hey TiffanyJane,
There is no way to change the dpi on a digital camera. What you need to do is set the camera to its highest resolution which is 3264x2448 pixels, and this is referred to as large in your camera. Large resolution should provide prints of high quality up to 11.7x16.5 inches, and should also be able to print to 300dpi. Instructions on how to set your camera to this setting are on page 69 of your camera manual. If you no longer have your manual I have provided a link below to a PDF download of it. I hope this helps!

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=225&modelid=15672#DownloadDetailAct

Sincerely,
Allan
Go Ahead. Use Us.

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2 Answers

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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.

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