Converting RAW to JPEG (Page 3): Best quality (least compression) and biggest file size. You can always make a reduced quality copy for a purpose but you can never add back the...

cambriaman Loc: Central CA Coast

Best quality (least compression) and biggest file size. You can always make a reduced quality copy for a purpose but you can never add back the quality. Learn how to resize images to a purpose so it isn't a hastle when your image file is rejected or takes forever to upload. Consider the end use when you resize.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

mborn wrote:

My workflow is the same just save the RAW &/or PSD &/or TIFF files and generate JPEG as need from those files

Works well, doesn't it?

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

whitewolfowner wrote:

It's really your choice. 72 is recommended for screen viewing and internet sending. 300 is for printing. So if you ever want to be able to print them in the future, save them at 300. Sounds like you ditch the raw files; you should never do that. It prevents you from ever going back to rework them if you desire; plus if your software ever gets upgraded, most will allow you to bring the originals in the new software and take advantage of the new improvements to get the photo even better.

DPI is not the same as image pixel dimensions. If you view an image set to 72 dpi and then change the "resolution" to 300 dpi, and display the image, they will look exactly the same on the screen.

Actual pixel dimensions are more meaningful, and will determine how much of the image will fill the screen, compared to the screen resolution. If you have a 4k display (3800 px or so) and try to display a 1920 px (on the long side) image, it will only fill a portion of the screen. If you have an older display, the 1920 px image will fill the screen.

Bill_de Loc: US

If you post the largest image you have and let UHH compress it, the Thumbnail image will be degraded. That's OK if you are going to select the save original and people hit the download button when viewing. Even with the download, not sizing and sharpening for the intended purpose, letting the UHH software do it automatically, will not give you the best image. Large file sizes are typically reserved for printing.

--

whitewolfowner

Gene51 wrote:

DPI is not the same as image pixel dimensions. If ... (show quote)

I have a 4K Dell monitor and on my monitor if I export a photo at 300 DPI, it fills the screen; if I export it at 72 DPI, it barely covers 1/4 of the screen. Sure , you can bring it to full screen but the resolution is not the same as the one at 72 DPI. 72 DPI is used for sending in emails and not have such a huge file. So I fail to understand your reference. Please clarify.

mkaplan519

It is sometime difficult to understand the difference between DPI and resolution.
Your screen only displays 72DPI which is why adjusting the DPI higher makes no sense if only using it for display on a monitor.
What makes it fill the screen is having the correct resolution. As an example, for my Dell 4K monitor, I save the photo as 3840x2160 72dpi.
That is a full screen image and best quality that my monitor can display.

Bill_de Loc: US

mkaplan519 wrote:

It is sometime difficult to understand the difference between DPI and resolution.
Your screen only displays 72DPI which is why adjusting the DPI higher makes no sense if only using it for display on a monitor.
What makes it fill the screen is having the correct resolution. As an example, for my Dell 4K monitor, I save the photo as 3840x2160 72dpi.
That is a full screen image and best quality that my monitor can display.

If your numbers are correct, you have a 53 x 30 inch monitor. Pretty cool!

I think the 72 ppi monitors went out with the cathode ray tube.

--

TriX Loc: Raleigh, NC

Bill_de wrote:

If your numbers are correct, you have a 53 x 30 inch monitor. Pretty cool!

I think the 72 ppi monitors went out with the cathode ray tube.

--

Agreed. Whether the correct terminology when describing a display is DPI or PPI (a different discussion), no display in the last several decades has been 72 DPI (if then). This has been discussed before at length on The Hog, but rather than repeat the discussion, let me just say that you can easily prove this to yourself by measuring the horizontal and vertical dimensions of your display and dividing the resolution in pixels by that number. You'll find that number is nowhere close to 72. I'm sure there will be a number of other comments regarding this.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

whitewolfowner wrote:

I have a 4K Dell monitor and on my monitor if I export a photo at 300 DPI, it fills the screen; if I export it at 72 DPI, it barely covers 1/4 of the screen. Sure , you can bring it to full screen but the resolution is not the same as the one at 72 DPI. 72 DPI is used for sending in emails and not have such a huge file. So I fail to understand your reference. Please clarify.

You must be resampling. Do the same thing without resampling, and the image will be the same size on the screen. Here are two images, one exported at 16dpi, and the other at 600 dpi. The original is 7360x4912 px. CAn you see any difference at all?

The pixel dimensions (width and height) determine how large the image will be on your screen, not the image's dpi.

16 dpi exported from Lightroom

(Download)

600 dpi exported from Lightroom

(Download)

AzPicLady Loc: Behind the camera!

I don't care about your file size. I just like the car.

whitewolfowner

TriX wrote:

Agreed. Whether the correct terminology when descr... (show quote)

You are correct; my keyboard did not write the correct statement when I replied. My tongue got in the way of my eye tooth and I couldn't see what I was writing.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

mkaplan519 wrote:

It is sometime difficult to understand the difference between DPI and resolution.
Your screen only displays 72DPI which is why adjusting the DPI higher makes no sense if only using it for display on a monitor.
What makes it fill the screen is having the correct resolution. As an example, for my Dell 4K monitor, I save the photo as 3840x2160 72dpi.
That is a full screen image and best quality that my monitor can display.

It will fill the screen with the same quality at 10 dpi too. Monitor and file dpi do not determine how large the image is - pixel width and height do.