Resolution

DJ
Posted By
Devon_Johnston
Nov 23, 2003
Views
379
Replies
4
Status
Closed
I apologize if I’m asking a question you’ve already answered, but here goes. I have an Olympus Digital Camera, the highest resolution is 144. I want to start doing professional business cards and brochures, using the output from the camera. The resolution needs to be at least 300ppi. What is the best way to achieve this? Do I need to purchase a better camera? Can I push the 144 to 300 in Photoshop 7.0 and get a picture that can go to a professional printing company? (I’ve tried this in the past and the integrity of the picture was injured) Is there other software that will push the res and keep picture integrity?

Thanks so much,
Dj
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L
larry
Nov 23, 2003
Define "highest resolution".

Digital cameras don’t capture files at a resolution. They just capture pixels. What is the pixel dimensions at the largest file capture format? With a 3.3 megapixel CoolPix 990 camera it’s 2048×1536 pixels. With the five megapixel CoolPix 5000 it’s 2560×1920 pixels. Photoshop 6 opened digital camera files at screen resolution of 72 pixels per inch and Photoshop 7 opened the same files at EXIF stated resolution of 300 pixels per inch. But both files were exactly the same if you resized the image without resampling. Therefore I don’t understand where you’re getting the 144 from unless it’s the EXIF data telling Photoshop what the manufacturer wants it to be read at. But it doesn’t exist until you save it as such. Just open the file and change the Pixels Per Inch to 300 if that’s what you desire.

Larry Berman
CW
Colin_Walls
Nov 23, 2003
Larry was accurate, but somewhat unhelpful, as you are clearly inexperienced in this [difficult] area.

First off, do this:
Open your image.
Go to Image Size and set the resolution to 300ppi [ensuring that resample is un-checked]. Look at the image size in inches.
Is is what you want?
If so, you’re done.
If not, is it too big?
If so, set it to what you want – the resolution will go up, but that’s fine. Is it too small?
If so, you have a problem. You can change the size to what you want, with resample checked. The resolution will stay at 300ppi, but quality may degrade.

Does this help?
DJ
Devon_Johnston
Nov 25, 2003
Hey thanks! I didn’t understand that about the digital camera. And Colin, thanks for the detailed explanation and step by step guide. It does indeed work exactly as you said and now I have a picture that go to a printer on a business card at 300ppi, with no integrity loss and I don’t have to buy a new camera to get it. Yea!

Dj
CW
Colin_Walls
Nov 25, 2003
Pleased I could save you some money. You may donate my commission on this service to a worthy charity. 🙂

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