Go Back   Steve's Digicams Forums > Digital Cameras (Point and Shoot) > Kyocera / Yashica

Reply
 
Thread Tools Search this Thread
Old May 20, 2005, 3:10 PM   #1
Junior Member
 
Join Date: May 2005
Posts: 4
Default

Hi everybody,
This is my very first. Thanks Steve for mainaiting such a informative site.

Well I was reading few reviews since last few days and checking the sample pictures of different models of digicams.

I want to know what is the effect of DPIs on picture quality

i.e. Kyocerapictures mostly are at 72dpi
Olympus models have 314 dpi etc.

But the quality of both pictures seems to be same.

Should one consider these DPIs before purchasing the camera.


rizwan65 is offline   Reply With Quote
Sponsored Links
Old May 20, 2005, 3:44 PM   #2
Senior Member
 
gerrard's Avatar
 
Join Date: Dec 2004
Posts: 131
Default

Hi

I'm not much of an expert but I don't think these figures have anything to do with the pic quality of a camera. They are probably more liked to scanners and printers i.e the quality of the printed photos.

I stand to be corrected.

Bye

Gerrard
gerrard is offline   Reply With Quote
Old May 20, 2005, 5:45 PM   #3
Member
 
Join Date: Apr 2005
Posts: 46
Default

The Dots per inch or DPI have no relation to the quality of the camera.

A computer screen can only resolve a dpi of 72dpi soweb picsare setat that.

A injet printer can go higher to 240 dpi.

A pro printer at a lab can go 300 dpi.

It is the number of pixels a camera has that means larger prints can be made.

Under 1 mega-pixel low grade for the web

2 mega-pixel 6x4in

3 mega-pixel 6x8

4 mega-pixel 8x10

6 mega-pixel 12x 10 and higher.

This is only a rough guide and more information can be found on the web. Cheers.
seftonearl is offline   Reply With Quote
Old May 21, 2005, 2:25 AM   #4
Junior Member
 
Join Date: May 2005
Posts: 4
Default

Thanks for your replies,

Well I think I was not able to explain the question.
I mean to say that:

When I check theproperties ofa picture taken by a Kyocera Camera at fine mode shows xresolution an yresolution as 72dpi

and


When I check the properties ofa picture taken by a Olympus Camera at fine mode shows xresolution an yresolution as 314dpi

Both pictures are shown on same monitor
So my question is what is the effect of this DPI on picture quality.

Regards
Rizsh
rizwan65 is offline   Reply With Quote
Old May 21, 2005, 5:48 AM   #5
Baz
Senior Member
 
Baz's Avatar
 
Join Date: Aug 2003
Posts: 219
Default

As Sefton said, the DPI settings you see have no relation to the quality of the camera image. It is just a setting that can be changed in photo editing or printing software, so as to determine the output or print size. It has no bearing on the screen quality or size. This is determined by your monitor resolution.

The real measure of the camera resolution is the megapixels. i.e. pixels across x pixels down. The more the better.

DPI does have a bearing on a photo print size & quality. e.g. say your image is 2400 pixels wide. Using photo editing or printing software, if you select an 8" wide print, the resulting print dpi will be 300, which is excellent. Selecting a 12" print gives a 200dpi print, which is still accepable, but you dont want much less for a good print.

Dont worry about those dpi properties you see. They are not a function of camera resolution or quality, and no reason for choosing a camera.

Baz is offline   Reply With Quote
Old May 21, 2005, 6:16 AM   #6
Junior Member
 
Join Date: May 2005
Posts: 4
Default

Thanks Baz,

That cleared my confusion
rizwan65 is offline   Reply With Quote
Old Oct 12, 2005, 3:02 AM   #7
Junior Member
 
zeeshan's Avatar
 
Join Date: Sep 2005
Posts: 20
Default

hi,

well as far as DPI is concerned, the more the DPI value, the more good, vibrant and crisp image will be printed by a printer...

a low dpi image will not asgood as compared to the higher dpi image..

simple.. :-)
zeeshan is offline   Reply With Quote
Old Oct 12, 2005, 4:32 AM   #8
Senior Member
 
Kyocera Kid's Avatar
 
Join Date: Sep 2004
Posts: 694
Default

Zeeshan ... what you say is true ...butwe need to make clear that the dpi figure is not a criteria for BUYING a camera! So, it is not as simple as it seems.

One of thequestions was ....... Doyou need to consider the dpi figure when buying a camera? No! You need to look at the number of pixels (but this is not the only criteria for choosing a camera!).

You only need to consider dpiwhen printing!

Excellent postings everyone! I think it must clear up the effect of changing the dpi for any given picture size.

Cheers, KK
Kyocera Kid is offline   Reply With Quote
Old Oct 14, 2005, 7:24 PM   #9
Senior Member
 
IanWgglswrth's Avatar
 
Join Date: Dec 2004
Posts: 410
Default

Good posts, took me ages to work that out and I still can't explain it!

One thing though, check the compression the camera has when saving to memory card!

I only say this as I had a Kodak which did give very good results, but when storing pictures onto a SD memory card I could get twice as many on the Kodak than my other camera even though both were 2mp resolution set on the same setting.

The only difference was the medium, fine and superfine setting, which could be altered on one camera but was fixed (no setting adjustment) on the Kodak.

I think (correct me if I'm wrong) but the compression would make a difference to the image the camera produces.

Cheers Ian
IanWgglswrth is offline   Reply With Quote
Old Oct 14, 2005, 7:40 PM   #10
Senior Member
 
Kyocera Kid's Avatar
 
Join Date: Sep 2004
Posts: 694
Default

Yes Ian .... overcompression would introduce unwanted artifacts and generally slightly lower the overall impression of sharpness.

KK
Kyocera Kid is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 8:28 AM.