Reducing the file size? I want to post a few photographs to this place. But the D750 is creating file sizes way about the 20 mB limit. How do I reduce the size without compromising the...

PaulBrit Loc: Merlin, Southern Oregon

I want to post a few photographs to this place.

But the D750 is creating file sizes way about the 20 mB limit.

How do I reduce the size without compromising the quality of the image?

Grateful for your tips.

Paul

rwilson1942 Loc: Houston, TX

Are you talking about the D750 RAW file size?
If so, you need to export jpeg files from your post processing software to get smaller file sizes.
I don't know Nikon, but you should be able to select different jpeg settings if that is what you are shooting.
As for compromising quality, you can't there from here. If you make the image smaller it will affect quality.
It may not be enough to mater for posting to the web however.

Blenheim Orange Loc: Michigan

PaulBrit wrote:

I want to post a few photographs to this place.

But the D750 is creating file sizes way about the 20 mB limit.

How do I reduce the size without compromising the quality of the image?

Grateful for your tips.

Paul

Reducing the size (dimensions) of the images shouldn't hurt quality. Reducing the file size by compression can.

I resize all images before posting them, using a standardized 2018 X 1365 pixel size now per the recommendation of UHH member CHG_CANON. I then save them as highest quality JPEGs. I am using a 20 year old version of Paint Shop Pro for that job, but any image editing program will work.

Mike

PaulBrit Loc: Merlin, Southern Oregon

Thanks guys!

bleirer

Blenheim Orange wrote:

Reducing the size (dimensions) of the images shouldn't hurt quality. Reducing the file size by compression can.

I resize all images before posting them, using a standardized 2018 X 1365 pixel size now per the recommendation of UHH member CHG_CANON. I then save them as highest quality JPEGs. I am using a 20 year old version of Paint Shop Pro for that job, but any image editing program will work.

Mike

I would add, click the 'convert to srgb' box when you export the jpeg.

CHG_CANON Loc: the Windy City

PaulBrit wrote:

I want to post a few photographs to this place.

But the D750 is creating file sizes way about the 20 mB limit.

How do I reduce the size without compromising the quality of the image?

Grateful for your tips.

Paul

This post has a lot of discussion of why to use 2048-pixels on the long side. If you scroll directly to the bottom, there are several examples of how. Recommended resizing parameters for digital images

Blenheim Orange Loc: Michigan

CHG_CANON wrote:

This post has a lot of discussion of why to use 2048-pixels on the long side. If you scroll directly to the bottom, there are several examples of how. Recommended resizing parameters for digital images

Somehow I got going with 2018 px long side. Thought I got that from you.

On edit - I have been using the 2048 X 1365 dimensions.

That post you linked to is a great resource.

Mike

Longshadow Loc: Audubon, PA, United States

I use a Windows power toy called Image Resizer.
It becomes part of the right-click options for Windows Explorer.
It's handy because I don't have to open an editor to re-size JPEG images.

http://www.bricelam.net/ImageResizer/

Bob Mevis Loc: Plymouth, Indiana

If raw, copy as jpeg in your editor. Using medium quality will not harm your file.

rehess Loc: South Bend, Indiana, USA

When I was using film, I sent slides in to a professional. Comparing the scans to the original slides, I determined that a 3000x2000 scan would capture all detail I could see in the original slide, so I have used 3000x2000 as a standard in digital.

PaulBrit Loc: Merlin, Southern Oregon

Thanks everyone! That was very helpful.

Jeffers

In Photoshop Elements, using the keystrokes Ctrl+Alt+I will give you the file size screen. If you unselect Resample Image, then reduce the dimensions, the PPI will go up, i.e. higher resolution. But the file size will not change.
If you first select Resample Image, then reduce the physical dimensions, the ppi won't change, i.e. same resolution, but the file size will shrink appropriately.

If you make an image larger without Resample Image the resolution will go down. If you resample and make the image larger, the resolution will still go down, you'll fool the printer, but not your eye.

I'm pretty sure it works this way on all the Photoshop products, but the keystrokes may be different.

rehess Loc: South Bend, Indiana, USA

Jeffers wrote:

I'm pretty sure it works this way on all the Photoshop products, but the keystrokes may be different.

Products distributed by someone other than Adobe have the same functionality, but I have never bothered to memorize the keystrokes - I use the mouse to control 'gimp', for example.

Jeffers

I can't comment about any photo software other than Adobe, but with Adobe, you can do more and much faster if you learn the keystrokes.

PHRubin Loc: Nashville TN USA

A 20mB file is RAW. It can't be reduced and stay RAW. When converted to jpg it can be reduced as much as you want and still stay the same number of pixels. That is becaude jpg can compress files in varying degrees.