Ugly Hedgehog - Photography Forum
Home Active Topics Newest Pictures Search Login Register
Main Photography Discussion
Choosing the Perfect Print Resolution for Your Photos
Page <prev 2 of 8 next> last>>
Feb 7, 2024 12:00:09   #
DirtFarmer Loc: Escaped from the NYC area, back to MA
 
f8lee wrote:
Well, technically, the camera generates pixels based on the photon counts in adjacent photo sites that have red, Green or Blue filters on top of them, right? So even that begs the question of how one defines a pixel...is it the individual photosite or the blend that creates a given color at a point in the X/Y array?


I'm just pointing out that pixels and dots are different things, and both of them are important in viewing images.

Reply
Feb 7, 2024 12:20:07   #
Longshadow Loc: Audubon, PA, United States
 
DirtFarmer wrote:
So our cameras take images using pixels.
You might look at the monitor on your camera to view the image, but more likely you download the image and view it on your computer monitor because it's larger and easier to see detail.
If you look closely at your monitor you will see dots. The dots might be square (who says dots have to be round?) but they are discrete red/green/blue dots. It might take a lot of them to make up a pixel, depending on how you display the image. OR, there might be a lot of pixels that are compressed into a dot.

Semantics.
So our cameras take images using pixels. br You mi... (show quote)

A group of dots in a display (monitor or print) depict the pixels in an image.
When you zoom WAY in in an editor, you are seeing a representation of pixels made up by a crapload of dots on the screen. Same with a print, a crapload of dots represent the image.

Reply
Feb 7, 2024 12:23:44   #
srt101fan
 
Is there a difference between a pixel-peeper and a dot-peeper?

Reply
 
 
Feb 7, 2024 12:27:19   #
BebuLamar
 
CHG_CANON wrote:
Just for the edification of the entire UHH community, how many pixels are in a dot?

Or, is it how many dots are in a pixel?

Being 2024, surely there must be someone with the knowledge of either of these basic ratios, right ????


There is no pixels on the screen or in a print because you said "pixel has no dimension" and thus they don't physically exist. There are only dots and dots are all you can see.

Reply
Feb 7, 2024 12:38:46   #
Longshadow Loc: Audubon, PA, United States
 
srt101fan wrote:
Is there a difference between a pixel-peeper and a dot-peeper?

Nope, they still be peepers.

Maybe they should be called Dot Detectives......

Reply
Feb 7, 2024 13:00:20   #
SuperflyTNT Loc: Manassas VA
 
BebuLamar wrote:
There is no pixels on the screen or in a print because you said "pixel has no dimension" and thus they don't physically exist. There are only dots and dots are all you can see.


Pixels in a file have no dimension. Pixels on a screen do, depending on the size and resolution of the screen. An image has logical pixels. A screen is a physical implementation which has dimensions.

Reply
Feb 7, 2024 13:04:42   #
Longshadow Loc: Audubon, PA, United States
 
SuperflyTNT wrote:
Pixels in a file have no dimension. Pixels on a screen do, depending on the size and resolution of the screen. An image has logical pixels. A screen is a physical implementation which has dimensions.

"Pixels" on a screen (or print) are represented by a crapload of dots.

Reply
 
 
Feb 7, 2024 13:11:19   #
DirtFarmer Loc: Escaped from the NYC area, back to MA
 
SuperflyTNT wrote:
Pixels in a file have no dimension. Pixels on a screen do, depending on the size and resolution of the screen. An image has logical pixels. A screen is a physical implementation which has dimensions.


Pixels on a print also have finite dimensions.

Reply
Feb 7, 2024 13:14:18   #
Longshadow Loc: Audubon, PA, United States
 
DirtFarmer wrote:
Pixels on a print also have finite dimensions.


Reply
Feb 7, 2024 13:14:31   #
CHG_CANON Loc: the Windy City
 
A question for the UHH Wise:

I have 24MP image file, 6000x4000 pixels. The file resides on disk as a 12.7MB JPEG. How many millimeters wide is the file?

Reply
Feb 7, 2024 13:15:11   #
Longshadow Loc: Audubon, PA, United States
 
CHG_CANON wrote:
A question for the UHH Wise:

I have 24MP image file, 6000x4000 pixels. The file resides on disk as a 12.7MB JPEG. How many millimeters wide is the file?


.01?
Depends on the bit density of the disk.

Reply
 
 
Feb 7, 2024 13:16:57   #
CHG_CANON Loc: the Windy City
 
A question for the UHH Wise:

Which weighs more?

a, 24 megapixels @ 72 DPI

b, 12MP @ 300 DPI

Reply
Feb 7, 2024 13:20:40   #
Longshadow Loc: Audubon, PA, United States
 
CHG_CANON wrote:
A question for the UHH Wise:

Which weighs more?

a, 24 megapixels @ 72 DPI

b, 12MP @ 300 DPI


b. 12x300=3,600 MPDPIs where 24x72=1,728 MPDPIs.

The next question is how much does a MPDPI weigh?

Reply
Feb 7, 2024 13:26:53   #
DirtFarmer Loc: Escaped from the NYC area, back to MA
 
CHG_CANON wrote:
A question for the UHH Wise:

I have 24MP image file, 6000x4000 pixels. The file resides on disk as a 12.7MB JPEG. How many millimeters wide is the file?


CHG_CANON wrote:
A question for the UHH Wise:

Which weighs more?

a, 24 megapixels @ 72 DPI

b, 12MP @ 300 DPI


We are talking about different things. The digital file has no dimensions nor weight. The image on a screen has dimensions, but no weight. The print has both dimensions and weight, but the print can be generated in a wide range of dimensions (and the weight will be proportional, but dependent on the substrate).

Reply
Feb 7, 2024 13:27:59   #
Longshadow Loc: Audubon, PA, United States
 
DirtFarmer wrote:
We are talking about different things. The digital file has no dimensions nor weight. The image on a screen has dimensions, but no weight. The print has both dimensions and weight, but the print can be generated in a wide range of dimensions (and the weight will be proportional, but dependent on the substrate).

We are talking humor.....

Reply
Page <prev 2 of 8 next> last>>
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.
Main Photography Discussion
UglyHedgehog.com - Forum
Copyright 2011-2024 Ugly Hedgehog, Inc.