HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Topics » Arts & Humanities » Photography (Group) » Is it time to up the KB f...

Sun Nov 11, 2012, 08:49 AM

Is it time to up the KB from 250 in Contests?

I noticed in the Nov. B/W contest that when shrinking down my high-res BW pic for the contest this time I was beginning to lose some quality getting it under 250K.

With the newer, larger MP cameras, I think this is going to start being a problem. I really think we should give some thought to 300, or 350k as a limit for the size. I don't think it would make that big of a difference in terms of loading time.



15 replies, 1336 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread

Response to JCMach1 (Original post)

Sun Nov 11, 2012, 11:14 AM

1. I have one of those dumb questions

How can a host tell how large the file is? I've hosted several contests and never knew how to check this. Pixel length shows up in properties but not file size, at least none that I can tell. I don't have the time to download every photo into photoshop to check. I've always just assumed that the entrants are formatting their pictures correctly.

I do agree with you that there is a quality issue. I usually work with very large files in PSD and after they are reduced to a small JPG they look almost fuzzy.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Mz Pip (Reply #1)

Sun Nov 11, 2012, 12:09 PM

3. After resizing, pics always need to be resharpened.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to ManiacJoe (Reply #3)

Mon Nov 12, 2012, 07:53 AM

5. I wasn't aware of that.

Ever since I switched to digital I've done any necessary sharpening in camera raw. What do you use to sharpen your jpegs?

Reply to this post

Back to top Alert abuse Link here Permalink


Response to teamster633 (Reply #5)

Wed Nov 14, 2012, 11:26 AM

7. Sharpening software:

For input sharpening (at the start of the post processing) I use either FocusMagic or Nik's Sharpener.

For output sharpening, I either use Nik's Sharpener or the standard Unsharp Mask in the editor.

After resizing a picture down, my USM settings are usually around
Clipping: 5
Radius: 0.7
Strength: 50

Reply to this post

Back to top Alert abuse Link here Permalink


Response to JCMach1 (Original post)

Sun Nov 11, 2012, 11:34 AM

2. For the photo contest, aren't you working on what appears on the computer monitor anyway?

 

And isn't that resolution limited automatically by a DU scrip?
If so why not have that the limiting factor for the Photo Contests?
Then there is the issue of slow Internet connections. A string of large pictures will slow down the loading beyond the usefulness of the higher resolution most people won't see anyway.

If someone wants to just post their prize winning 20 meg (compressed jpg) picture in its own OP, that is one thing, but for the contest, I think we need to keep control of the file sizes.

I use Irvanview as my default photo program. It is a simple matter to adjust the resolution.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to RC (Reply #2)

Sun Nov 11, 2012, 08:36 PM

4. I don't know that 300, or 350kb would make a huge difference in time, but it might make a huge

difference in quality.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to JCMach1 (Original post)

Wed Nov 14, 2012, 09:08 AM

6. Some observations on the size

Since these pictures are not stored on the DU web site, but rather all over the net, the reason for the size limitation may be to speed up the loading of the pages. Images for display should not exceed 72 DPI (dots per inch) as that is the maximum resolution for most all computer displays. Cameras typically take pictures at 240 or 300 DPI. If one does not reduce the resolution to 72, the resulting images will be much larger with no improvement in how they look on the screen.

Thus we get to the max size in pixels which is required to by 800 on the longest side, which controls how large the image is on the screen. This parameter will set the image size. In the case of long panoramas, this is a limiting factor to the quality of the image as it displays on the screen.

One may ask how to set these parameters. Users of Photoshop, Photoshop Elements and Lightroom, can easily do it when making .jpg files for display. Other image software should likewise have that capability.

So, it gets down to understanding why the limits at DU and should they be changed.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to JCMach1 (Original post)

Wed Nov 14, 2012, 11:32 AM

8. I would vote for some minor size increases.

If I remember correctly the current limits are at 250K and 800 pixels.
Bumping them up to 300K and 1200 pixels would make it consistent with other places I post to.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to ManiacJoe (Reply #8)

Thu Nov 29, 2012, 04:24 PM

14. Sounds like a reasonable change.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to JCMach1 (Original post)

Wed Nov 14, 2012, 04:11 PM

9. I'm going to pin this for a few days so more

people see it and comment. Eventually you may want to do a poll with either a yes/no or one with different sizes but I would keep the choices down to 3 or 4. I would guess most people have bigger monitors now so we could go a bit bigger in dimensions along with size. If you want to send me a PM when you make your poll I'll pin it too so everyone finds it.






BTW you do know you can pin threads still don't you? You still have host powers.


Reply to this post

Back to top Alert abuse Link here Permalink


Response to JCMach1 (Original post)

Thu Nov 15, 2012, 04:00 PM

10. I'm easy, but there might still be those stuck with dial up connections.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to JCMach1 (Original post)

Wed Nov 21, 2012, 11:38 AM

11. I think it should be upped considerably more than it is

Sure there are those who have dial up, but if you look at other threads you'll see all sorts of higher resolution photos with no warning at all. At least those who do have dial up who click on photography threads know what they are getting in to. Also if you look at the submissions, people are routinely ignoring the 800 pixel limit anyway.

I think the restriction should be 1920 1080 with a 1 meg file size (50% compression). This seems like a more reasonable balance between quality and size.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Major Nikon (Reply #11)

Mon Nov 26, 2012, 02:11 PM

12. Disagree.

I do all my DU viewing on my laptop. 1280 x 800 15.4" screen.

Of course, I could change the screen resolution, but then I'd need a microscope to actually read any text.

On edit, maximum screen resolution is 1440 x 900. So, No....

Reply to this post

Back to top Alert abuse Link here Permalink


Response to JCMach1 (Original post)

Tue Nov 27, 2012, 10:51 PM

13. Yes.

1200 max length would be better.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to JCMach1 (Original post)

Fri Nov 30, 2012, 02:41 AM

15. This is a tough one. The only real consideration is towards DUers with lower speed connections.

 

Maybe it would be better to do a survey in the lounge about what kind of connection people have.

Let the people show us
http://www.democraticunderground.com/1018245338

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread