Finepix A825

berrypendel

On a fuji finepix a 825 how is the dpi increased. a friend told me the dpi should be 200. It is at 72 accoring to the computer but the camera is saying 91

Heebie

The DPI (or LPI) is dependent on the display or print device.

A standard fax is 200lpi.

If you take a photo & display it on a monitor with output of 72dpi, then what your'e looking at it 72dpi.

If your monitor is 96dpi, then that's what's there.

If your printer prints at 360dpi, then that's what you can send it... it's tricky with printers though. You can send a printer 200dpi.. and it will print using 360dpi or whatever.. and render the 200dpi image within the 360dpi space.. so the image you're looking at is still really 200dpi (usually lpi with printing.. although most printers will be use dpi in their literature.)

I tend to resize images to just over 300dpi, then do sharpening works on them at the resolution before sending them to a printer. (300dpi or 300lpi is considered by many to be the resolution at which the human eye can no longer distinguish individual dots at 1 foot from the eye... so anything over 300dpi should look good at any normal viewing distance.) Often 160dpi is considered good enough for print work, especially large print work, because usually you're not going to be that close to it. If 300dpi at 1 foot is ideal, then 150dpi at 2 feet should look pretty much the same to the eye, so 160 adds some leeway.

You don't generally "increase" or "decrease" the dpi unless you're resampling an image to a different size, and when viewing, it's totally dependent on the output device, for prints, it's totally dependent on the combination of what's sent to the printer (how many pixels in your file divided by the size of the file) and/or the output resolution used on the printer.

Enough of that... it's a lot more than you were asking about.

Short answer: It depends.. both 200 and 72 and 91 have merits

berrypendel

Heebie wrote: »

The DPI (or LPI) is dependent on the display or print device.

A standard fax is 200lpi.

If you take a photo & display it on a monitor with output of 72dpi, then what your'e looking at it 72dpi.

If your monitor is 96dpi, then that's what's there.

If your printer prints at 360dpi, then that's what you can send it... it's tricky with printers though. You can send a printer 200dpi.. and it will print using 360dpi or whatever.. and render the 200dpi image within the 360dpi space.. so the image you're looking at is still really 200dpi (usually lpi with printing.. although most printers will be use dpi in their literature.)

I tend to resize images to just over 300dpi, then do sharpening works on them at the resolution before sending them to a printer. (300dpi or 300lpi is considered by many to be the resolution at which the human eye can no longer distinguish individual dots at 1 foot from the eye... so anything over 300dpi should look good at any normal viewing distance.) Often 160dpi is considered good enough for print work, especially large print work, because usually you're not going to be that close to it. If 300dpi at 1 foot is ideal, then 150dpi at 2 feet should look pretty much the same to the eye, so 160 adds some leeway.

You don't generally "increase" or "decrease" the dpi unless you're resampling an image to a different size, and when viewing, it's totally dependent on the output device, for prints, it's totally dependent on the combination of what's sent to the printer (how many pixels in your file divided by the size of the file) and/or the output resolution used on the printer.

Enough of that... it's a lot more than you were asking about.

Short answer: It depends.. both 200 and 72 and 91 have merits

Thanks for that even tho I do not understand it all.;)

If you take a photo & display it on a monitor with output of 72dpi, then what your'e looking at it 72dpi.

if i display it in photoshop is it the monitor res or the number in photoshop that counts?

I tend to resize images to just over 300dpi, then do sharpening works on them at the resolution before sending them to a printer.

how do you do this? I am talking of a 6insx4ins postcard made in photoshop from jpegs imported from the finepix a 825

Edit Just checked with www.whatismyscreenresolution.com and it says 1600x900

Borderfox

Most jpegs straight out of a camera are 72dpi

Heebie

berrypendel wrote: »

if i display it in photoshop is it the monitor res or the number in photoshop that counts?
how do you do this? I am talking of a 6insx4ins postcard made in photoshop from jpegs imported from the finepix a 825

Edit Just checked with www.whatismyscreenresolution.com and it says 1600x900

In photoshop what you're looking at on the display will always be showing you your display's resolution.. but.. you might not be looking at a 1:1 (pixel for pixel or pixel per pixel) rendering of the image. Both numbers mean something.

Your screen probably displays 72dpi. Your file may be "tagged" at 72dpi or 300dpi.. it doesn't really mean anything in the context of displaying it on the screen.

If you have an image that is 1600x900, at 300dpi, then is is 4.66 inches wide by 3 inches tall.

The same image, without any changes to it, at 200dpi is an 8" by 4.5" photo.

The same image, without any changes to it, at 100dpi is a 16" by 9"

All DPI is, is a description of how many dots per inch make up the image.

16x9 is a strange aspect ratio to see in a photographic camera... much more common in video cameras.

berrypendel

Heebie wrote: »

In photoshop what you're looking at on the display will always be showing you your display's resolution.. but.. you might not be looking at a 1:1 (pixel for pixel or pixel per pixel) rendering of the image. Both numbers mean something.

Your screen probably displays 72dpi. Your file may be "tagged" at 72dpi or 300dpi.. it doesn't really mean anything in the context of displaying it on the screen.

If you have an image that is 1600x900, at 300dpi, then is is 4.66 inches wide by 3 inches tall.

The same image, without any changes to it, at 200dpi is an 8" by 4.5" photo.

The same image, without any changes to it, at 100dpi is a 16" by 9"

All DPI is, is a description of how many dots per inch make up the image.

16x9 is a strange aspect ratio to see in a photographic camera... much more common in video cameras.

That is my computer monitor. So my friend is wrong to say i need to change the resolution on the camera to have a sharp image on the postcard?

Heebie

You shouldn't actually need to change anything in order to print something at post card size that looks sharp. If it doesn't look sharp, it probably wasn't in focus, or the resolution was too low. 1600x900 should give you a good looking print up to 8" x 4.5" no problem.

It sounds like you could use a tutorial on some of the basics of photoshop or other digital photo editing programs, including sizing. Anyone know of a good online tutorial?

berrypendel wrote: »

That is my computer monitor. So my friend is wrong to say i need to change the resolution on the camera to have a sharp image on the postcard?