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Please review my FAQ's! 3

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SPYDERIX

Technical User
Jan 11, 2002
1,899
CA
I have just created 2 new FAQ's and would like the other members here to review them, and rate them.

Online Tutorials For Learning Adobe Photoshop!
FAQ229-1853

What resolution and size should I use?
FAQ229-1854

Thanks guys!
colorado.gif

"Quest for the Cup - 2002!"
"Onto the 2[sup]nd[/sup] round!"

 
Wow! What alot of sites. Both FAQ's look good to me. I give you a 10 on both. Good Job!!![2thumbsup] "Nothing is Impossible!"
 
Hi, I don't understand this:

The height:
Desired Printed Dimensions in Inches (2.75 inches)
multiplied by
Desired Resolution (300 DPI)
equals:
825 pixels

The height:
Desired Printed Dimensions in Inches (2.75 inches)
multiplied by
Desired Resolution (300 DPI)
equals:
825 pixels


If I open a new document I know is for print, I set the resolution to 300dpi and set the width and height to the desired amounts (2.75" width and height) with inches selected. Why do I need the pixel amount's?

I only ask as I'm trying to understand designing for print myself.

Thanks

funkymonk2.jpg


rod@sameplanet.co.uk
********************
 
funkymonk,

please try it out. input 2.75 inches not pixels and set it to 300 DPI, then print it out, and measure it with a ruler to see if it did in fact print it out the correct size. I will do the same thing tommorrow. You see, if you set it to 2.75 inches then choose 300-DPI, I'm pretty sure it will print out 1/3 of the size you want. This is why the subject is soooooo bloody confusing.

Here is another test for you to try::
Take any picture, that's around 500x500 pixels, give or take. Select all, copy, new document but set the resolution to 300DPI, paste, then print it. It will be quite small. Then goto new document, but this time set resolution to 600DPI, paste the same image, then print it. It should be 1/2 the size of the 300DPI one.

And maybe another final test:
When you are looking at the new document dialog box, first set the resolution to 300DPI, then set the inches to 3 by 3 inches, but then change the inches selection to pixels, and note how it has done the calculation for you. Do that for both width and height, then hit ok (with pixels selected) and put 1 paintbrush dot in each corner and print it, then measure it. The reason for this last step is b/c maybe the calculation isn't being done properly, or done at all, and maybe you have to set the resolution first, then your size in inches, then change the selection to pixels.

What a huge pain.

I have always had troubles just using inches selected and using high resolutions. That is why I always use 100-DPI (actually px/cm). I print CD insert booklets and inserts with dimensions of 12cmX12cm and I use 100px/cm. And it prints out the exact measurements.

Please let me know your outcome of my 3 little tests.
I can see how this FAQ is going to get edited already.

colorado.gif

"Quest for the Cup - 2002!"
"Onto the 2[sup]nd[/sup] round!"

 
I can see where your going with this now (I think LOL). I will go through your test's and post the results later, I should have some free time then.
funkymonk2.jpg


rod@sameplanet.co.uk
********************
 
OK, PRELIMINARY TEST RESULTS:
------------------------------------------------------------
Test-1A: I created a new image 5cm X 5cm at 100px/cm, then I printed and measured it.

Result-1A: It printed out 5cm X 5cm

Test-1B: I created a new Image 5cm X 5cm at 300px/cm, then I printed and measured it.

Result-1B: It printed out 5cm X 5cm.

Test-1C: I created the same Image 5cm X 5cm at both 100 and 300 px/cm, but set the resolution first, then set the sizes in cm's then changed the selection to pixels

Result-1C: Still printed 5cm X 5cm

Analysis-1A,B,C: When creating a new image you can enter in the appropriate sizes in either inches or cm's and set the resolution to be whatever you want, and it will always print out the same size as you inputted, and it doesn't matter what order you input the data.
------------------------------------------------------------
Test-2A: I took a picture 500px X 500px that was already set to 100px/cm then copied in and put it into a new document but cranked the resolution up to 300 DPI, then printed it,then noted the size (6/8 inch). Then I took the same picture copied it, and put it into another new document but cranked the resolution up to 600 DPI, then printed it, and the picture was half the size (3/8 inch).

Analysis-2A: You can't add resolution to pre-made pictures, you can only reduce the resolution.
------------------------------------------------------------
So you don't need to use that formula usless you want to find out the resolution that a pre-made picture will print at.

Example of this:

I have a 500px X 500px photograph and I want it to print out at 2.5 inches X 2.5 inches. What is the resolution that I should use to acheive this?

Formula:

PRINT SIZE X RESOLUTION = PIXEL SIZE

reverse the formula though to read as follows:

PIXEL SIZE DIVIDED BY PRINT SIZE = RESOLUTION

Therefore:
500px / 2.5 inches = 200 DPI

If I didn't know about using the formula, and decided to crank the images resolution up to 400 DPI, then when I print the picture out it is only going to be 1.25 inches. And then I start tearing my hair out b/c the damn thing won't print at the correct size.

I will re-write some of my FAQ, to support my findings, and then would like you, and the other members here to review it again, and tell me what you think. Also please rate it on the scale of 1-10, and the bottom of the FAQ, as well as the other one about Tutorial sites.

Thanks Funkymonk for catching my error!
colorado.gif

"Quest for the Cup - 2002!"
"Onto the 2[sup]nd[/sup] round!"

 
OK, the newly revised FAQ is up and running.

I've changed the name of it to:
EVERYTHING YOU NEED TO KNOW!
faq229-1854

Thanks for the reviews!
colorado.gif

"Quest for the Cup - 2002!"
"Onto the 2[sup]nd[/sup] round!"

 
What do you think FUNKYMONK?
colorado.gif

"Quest for the Cup - 2002!"
"Onto the 2[sup]nd[/sup] round!"

 
Haven't had time to go through it yet, I've got it all on a word doc for when I have a little free time.
funkymonk2.jpg


rod@sameplanet.co.uk
********************
 
Put it into another one, b/c I resived a bunch more stuff, and now it's absolutely done.
colorado.gif

"Quest for the Cup - 2002!"
"Onto the 2[sup]nd[/sup] round!"

 
Hey man, do you live here? LOL

Going to the FAQ's now.....
funkymonk2.jpg


rod@sameplanet.co.uk
********************
 
Wow man you've been busy!
funkymonk2.jpg


rod@sameplanet.co.uk
********************
 
Ya I basically live here. LOL

Yes I've been extremely busy. The FAQ on the resolutions was created for users here at first. But since I showed it to my boss, she loves it, and has been helping me edit it, and revise it, and it has now become my project to get it done. We print CD inserts and traycards for manufacturing, and we get this question way more times that Tek-Tips will ever see it, so now I have a comprehensive set of guidelines to show clients when they enquire about this subject.
colorado.gif

"Quest for the Cup - 2002!"
"Onto the 2[sup]nd[/sup] round!"

 
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