Even though we ARE Nikon lovers,we are NOT affiliated with Nikon Corp. in any way.

English German French

Sign up Login
Home Forums Articles Galleries Recent Photos Contest Help Search News Workshops Shop Upgrade Membership Recommended
All members Wiki Contests Vouchers Apps Newsletter THE NIKONIAN™ Magazines Podcasts Fundraising

Please explain "downsizing"....


Pa, US
4419 posts

Click to send email to this author Click to send private message to this author

"RE: Please explain "downsizing"...."

Leonard62 Gold Member Awarded for excellent contributions and sharing his in-depth knowledge and experience with the community, especially of Nikkor Lenses Writer Ribbon awarded for his contributions to the Nikonians Resources articles library Nikonian since 15th Mar 2009
Thu 09-Feb-12 03:18 PM

Eric is explaining what DxO does to come up with a common print size for comparison purposes.

I downsize in order to view different camera photos on the computer at the same size for comparison purposes.

I use a D3X which has an image size of 6,048 X 4,032 pixels or 24.4 mp.

I compare the images to my D700 with is 4,256 X 2,832 pixels or 12.1 mp.

I do this by viewing my D3X photo in CS5 and looking at the image size of the photo. It shows 6,046 and 4,032. I change that to 4,256 and 2,832. And save it. If my D3X and D700 photos were of the exact same scene I now have two photos of the exact same size and I can compare the quality of both to each other. If I'm looking at the noise of the D3X photo at 100%, the noise is slightly reduced when down sizing to the D700 size.

Unlike the DxO results which show the D700 noise as slightly better then the D3X noise, I find the D3X has ever so slightly less noise then the D700 after downsizing on my computer screen. Here is a comparison of my D3X and D700 side by side after down sizing.

The D3X photo is on the left. This is a comparison of photos taken at ISO 6400 and enlarged 100%.

Click on image to view larger version

I get the same results every time I run these comparison tests.


Attachment#1 (jpg file)

Visit my Nikonians gallery.

A general, generic topic Please explain "downsizing".... [View all] , hollingwD80 , Thu 09-Feb-12 01:20 PM
Reply message RE: Please explain "downsizing"....
Reply message RE: Please explain "downsizing"....
Reply message RE: Please explain "downsizing"....