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Camera imports at 72 DPI?
Hi,.

My new Panasonic FX100 photos come in at 72 DPI and there is no option to change it. I have my settings on 12MP and highest quality..

I crop most of my photos in Photoshop, so what is the best way for me to get the best quality prints from my camera. Should they not be 300 DPI for printing?.

At the moment I am opening them, going to image size, unchecking resample image and changing resolution to 300 DPI, I then crop to my likings and view print size and using the rulers crop to make the 6 X 4 size and then save..

That is all I can find on the internet on what to do when cameras import at 72 DPI. My sisters camera imports at 300 DPI and my last camera imports at 180 DPI?.

Any help would be appreciated as I do not understand camera sizing all I have ever been told is they have to be 300 DPI and 6 X 4" for printing..

Thanks.

Mohey..

Comments (5)

You don't need to worry what dpi the photos are at really, so I'd forget about it..

For most purposes it's irrelevant..

The thing that matters is that you have enough pixels to print the photo the size you want. Obviously you do have enough..

Androohttp://Androo.smugmug.com..

Comment #1

The dpi setting is just a flag it does not change the actual pixel count in the image..

Remember digital image files only have pixels, until printed they don't have a physical size in inches or cms, and until then ppi/dpi does not come into play..

Read this, http://www.photo.co.nz/faq/resolution.htm.

You can use the PPI calculator at http://www.mattspinelli.com/ppicalc.html , to find the actual ppi you can print using various sizes (assuming least amount of cropping, and assuming you are not uprezzing to add more pixels).

And use theI see the answer burn in your eyes, across the wasteland,Death into Life..

Comment #2

Mohey wrote:.

Hi,My new Panasonic FX100 photos come in at 72 DPI and there is nooption to change it. I have my settings on 12MP and highest quality..

I crop most of my photos in Photoshop, so what is the best way for meto get the best quality prints from my camera. Should they not be 300DPI for printing?.

At the moment I am opening them, going to image size, uncheckingresample image and changing resolution to 300 DPI, I then crop to mylikings and view print size and using the rulers crop to make the 6 X4 size and then save..

That is all I can find on the internet on what to do when camerasimport at 72 DPI. My sisters camera imports at 300 DPI and my lastcamera imports at 180 DPI?.

Any help would be appreciated as I do not understand camera sizingall I have ever been told is they have to be 300 DPI and 6 X 4" forprinting..

This figure you mention is irrelevant so don't worry about it because you can change it easily, as you have been doing. What you are doing is exactly correct..

In Photoshop Elements you can do the same thing in one go with the crop tool, by selecting the output size you want (say, 6 x 4 inches) but leaving the resolution box blank. Then when you draw the crop frame on the picture you get it automatically resized to 6 x 4 inches without any resmpling / interpolation. Simple..

A resolution of 300 dpi is the generally accepted standard for hi-res prints, since that is about the most that a human eye can resolve at close distances. It doesn't matter if you have more (a picture from a 10MP camera printed at 6 x 4 inches, using the whole frame, is likely to be more like 600 dpi). I sometimes print larger pictures at 200 dpi and they look fine; you might notice the difference between 200 and 300 dpi with a magnifying glass from a few inches away, but not otherwise, and for larger pictures you tend to view them from further away so the lower resolution isn't an issue..

Who told you that pictures had to be printed at 6x4 inclhes?! You can print them any size you like... for example, with a 10 MP camera, you can easily print at about 20 x 14 inches using a resolution of about 200 dpi and it will look great as long as the picture is OK..

Best wishesMike..

Comment #3

Mohey wrote:.

Hi,My new Panasonic FX100 photos come in at 72 DPI and there is nooption to change it. I have my settings on 12MP and highest quality..

Just stop right here and think! Your camera is 12 megapixels. At max resolution, it is 4000 x 3000 pixels. 4000 divided by 72 (Pixels Per Inch) is 55.55 inches. Or 4.6 feet. Doing the same division on 3000 (pixels) gives us 3.5 feet. So if your images were to be actually printed at 72 PPI, they would be 4.6 x 3.5 feet..

If you are interested in how big you can print at 300 PPI, divide the pixels dimensions by 300. You can print 13.33 x 10 inches at 300 PPI..

At 4x6, you have about 666 PPI available, which is a lot more than is needed..

The "72 DPI" that you see is merely a number in the image's metadata. For most purposes, you can ignore it and do the simple math of dividing the image's actual pixel dimensions by the desired print size to see if you have enough pixels to achieve the desired PPI..

4000x3000 gives you enough pixels to crop and still have a final 4x6 image that is 300 PPI. And even 300 PPI isn't written in stone. Quite often, you can print as low as 180 PPI without noticing the difference. For your camera, that would mean extreme cropping. Or making a large print..

You can find out the true PPI by disabling resampling in the PS crop tool and then cropping. Then go to "Image Size" and read what the image size is in pixels. You can resample in the "Image Size" dialog to bring it down to 300 PPI (which would usually be the case if you are going for 4x6s.).

One reason to not end up larger than 300 PPI is if you upload your images to a printing service like SnapFish. If you cropped to 4x6 without resampling, your images would end up around 666 PPI and would be larger than is needed and would take longer to upload. If you are printing to your own printer, if the images are larger than needed, they will take longer to process and print..

However note that downsampling should only be done to the version of the image that will be printed. You should always keep an un-resampled version in case you want to re-process it again. Or if you do decide to print it larger..

Wayne..

Comment #4

Wow Guys,.

Thankyou for your time to answer. I can rest assure now and not stress that I only have 72 DPI coming in from my camara and will take all advice..

I really appreciate it..

Have a fantastic day/night where every you are in the world..

MoheyAustralia..

Comment #5

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