Why...? - DPChallenge Forums

Nikon AF Zoom-Nikkor 35-70mm f/2.8D

02/14/2005 12:00:33 PM · #1

Okay...can anyone tell me why these following photo's on DPC are a little blurred. I have them posted on another site using the same exact files and the are very sharp and clear.

DPC versions

The other site

//www.photographyblog.com/gallery/showphoto.php?photo=9639&sort=1&cat=500&page=1

//www.photographyblog.com/gallery/showphoto.php?photo=9637&sort=1&cat=500&page=2

eugene

Nikon D700

02/14/2005 12:04:08 PM · #2

Did u USM the pictures before you posted them to DPC?

Nikon AF Zoom-Nikkor 35-70mm f/2.8D

02/14/2005 12:05:10 PM · #3

Yes...they are the exact same files.

eugene

Nikon D700

02/14/2005 12:09:10 PM · #4

Did you USM the picture before or after you resized it?

The photographyblog site might run their own sharpening algorithm on the photos before showing them (like smugmug does).

Nikon AF DC Nikkor 135mm f/2.0D

02/14/2005 12:11:00 PM · #5

I did it after.

DJLuba

Nikon D2Xs

02/14/2005 12:12:35 PM · #6

Wow. If I didn't see it with my own eyes, I wouldn't have believed it. That picture is murdered on DPC compaired to the other site. What gives.

photomayhem

Canon EOS-10D

02/14/2005 12:13:54 PM · #7

I've noticed that my photos NEVER look as good on dpc as they do when I look at them before I upload.

02/14/2005 12:14:21 PM · #8

Lol...murdered isn't the word lol. I don't understand it.

the-O-ster

Nikon D70

02/14/2005 12:15:44 PM · #9

i've noticed that alot of sites that allow you to upload photos actually resave them for file size (obviously resulting in slightly altered images).

i would assume that dpc does not do this, but perhaps your other site runs them through a slight "optimization" filter which sharpens them or something....who knows?

in short, once it leaves your computer, its possible that it goes through all sorts of recompression. :) or is that a :(

the-O-ster

Nikon D70

02/14/2005 12:18:46 PM · #10

question: whats the streaking inthe lower right corner on the dpc shot? (image #1) looks like headlights in a time lapse...but there is no such streaking in the other sites image...

and whats with the aspect ratio? did you crop?

Message edited by author 2005-02-14 12:20:08.

02/14/2005 12:24:46 PM · #11

you know what...I just noticed the steaking headlights in photo number 1. They are a little different. I did bracket those shots, wonder if somehow I uploaded the wrong one with photo number 1.

The aspect ratio was 1.5. I did not crop.

Prof_Fate

02/14/2005 12:29:07 PM · #12

Right click the pics and check properties - the DPC pic is 47k the blog pic is 192k.

then you changed something - the thumbnail is now 166k in DPC...

scottwilson

Canon EOS-350D Rebel XT

Canon EF 28mm f/2.8

02/14/2005 12:30:33 PM · #13

I must be missing something because the photo look to be different sizes.

In the testing that I have done DPC does not change the photo at all.

02/14/2005 12:32:47 PM · #14

I think I might have resized a little different. The other size must be 600 on the longest side and on here its 640. Maybe thats where files may have been mixed up.