FZ200 - Why do some photos have 240 dpi and others 180 dpi?

[Rudy Pohl]

Hi there:

I noticed from my EXIF data that some of my photos have 240 dpi resolution and other have 180 dpi. Does anyone know off hand why that is?

(Sherm, you must know this )

Thanks,

Rudy

 

[Rudy Pohl]

OK, I found the answer and it's pretty exciting!!!! RAW files have 60 dpi higher resolution than the same JPEG files... hence more detailed images.

I have taken many shots with the settings set to RAW +JPEG (fine). When I checked the EXIF data on the JPEG file it showed 180 dpi... the partner RAW file showed 240 dpi.

Thanks has to mean higher image quality, right Sherm?

anyways... a little bonus for RAW shooters.



Rudy

 

[sherman_levine]

RudyPohl wrote:

OK, I found the answer and it's pretty exciting!!!! RAW files have 60 dpi higher resolution than the same JPEG files... hence more detailed images.

I have taken many shots with the settings set to RAW +JPEG (fine). When I checked the EXIF data on the JPEG file it showed 180 dpi... the partner RAW file showed 240 dpi.

Thanks has to mean higher image quality, right Sherm?

anyways... a little bonus for RAW shooters.



Rudy

Sorry, these are not the droids you are looking for


DPI is a nonsense term - All it says is "if you print this, what size should I tell the printer to make the print" (pixels/dpi=inches), but nobody does that anyway.


The image is 4000x3000 pixels. You can print big or print small, but pixels are pixels

Sherm

 

[AndyW17]

RudyPohl wrote:

OK, I found the answer and it's pretty exciting!!!! RAW files have 60 dpi higher resolution than the same JPEG files... hence more detailed images.

I have taken many shots with the settings set to RAW +JPEG (fine). When I checked the EXIF data on the JPEG file it showed 180 dpi... the partner RAW file showed 240 dpi.

Thanks has to mean higher image quality, right Sherm?

anyways... a little bonus for RAW shooters.



Rudy

In general, you should be able to squeeze more image detail out of a RAW image, period. But, as we've been discovering, there's a cost to doing that in figuring out the RAW processing that suits our tastes.

 

[Rudy Pohl]

sherman_levine wrote:

RudyPohl wrote:

OK, I found the answer and it's pretty exciting!!!! RAW files have 60 dpi higher resolution than the same JPEG files... hence more detailed images.

I have taken many shots with the settings set to RAW +JPEG (fine). When I checked the EXIF data on the JPEG file it showed 180 dpi... the partner RAW file showed 240 dpi.

Thanks has to mean higher image quality, right Sherm?

anyways... a little bonus for RAW shooters.



Rudy

Sorry, these are not the droids you are looking for


DPI is a nonsense term - All it says is "if you print this, what size should I tell the printer to make the print" (pixels/dpi=inches), but nobody does that anyway.


The image is 4000x3000 pixels. You can print big or print small, but pixels are pixels

Sherm

RATZ!!!! ... and here I got all excited!

Thanks,

Rudy

 

[Rudy Pohl]

Does this mean that a raw image at 240 dpi will yield a somewhat better print than the same image in jpeg at 180 dpi?

Rudy

 

[sherman_levine]

RudyPohl wrote:

Does this mean that a raw image at 240 dpi will yield a somewhat better print than the same image in jpeg at 180 dpi?

Rudy

No luck there either.

A 4000 pixel wide image at 180 dpi would be 22.2 inches wide

A 4000 pixel wide image at 240 dpi would be only 16.6 inches wide

Sherm

 

[Rudy Pohl]

sherman_levine wrote:

RudyPohl wrote:

Does this mean that a raw image at 240 dpi will yield a somewhat better print than the same image in jpeg at 180 dpi?

Rudy

No luck there either.

A 4000 pixel wide image at 180 dpi would be 22.2 inches wide

A 4000 pixel wide image at 240 dpi would be only 16.6 inches wide

Sherm

 

[Rudy Pohl]

...then why do they have these apparently meaningless distinctions?

Rudy

 

[sherman_levine]

RudyPohl wrote:

...then why do they have these apparently meaningless distinctions?

Rudy

That's a question best handled in the philosophy forum

Sherm

 

[Rudy Pohl]

sherman_levine wrote:

RudyPohl wrote:

...then why do they have these apparently meaningless distinctions?

Rudy

That's a question best handled in the philosophy forum

Sherm

LOL, you're a scream sometimes Sherm. OK, this thread's done as far as I'm concerned.



Rudy

 

[TanukiSan]

When importing a RAW file in ACR you decide the amount of DPI you want , the next one is just 1 dpi: