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 09/21/2005 01:35:18 PM · #1
I have done it once and messed up the sizing but I would like to enter another challenge. I tried last night but could not get the photo under the size limit. I followed the tutorial to the letter and finally was frustrated and quit after 6 attempts. Can anybody help me here?

Thanks
 09/21/2005 01:40:52 PM · #2
2 questions:
What software are you using to process your images?
Which size limit are you having the most trouble with--the 640 pixel maximum or the 150 kb file size limit?
 09/21/2005 01:45:17 PM · #3
I use photoshop CS2 and I am having trouble with the 150kb I sized down to the 640 but the site said the file exceeded the 150 kb limit Thanks for the reply
 09/21/2005 01:47:39 PM · #4
get the size down to 640 pi on th eling side in the image size box, then use the quality slider (right side midde ) to bring it down to below the 150k limit.
 09/21/2005 01:56:30 PM · #5
once you are done editing your image, do this:

1) go to the image/image size window.

2) set the resolution to 72dpi

3) at the top of that window, you are going to change your pixel dimensions. ensure the longest side of your shot is set to 640 (whether that's 640 high or 640 long depends on the size of your shot)

4) click the OK button

5) go to the file/save for web window

6) in the preset box to the right, choose JPEG High. the quality dropdown will show "60". underneath your shot, it will show you the file size in text (it will be something like 75K).

7) when you change the quality, the file size number will change. adjust the quality slider/dropdown to the highest number you can so that the file size number stays below 150K.

8) hit the save button and give it a name

9) upload

10) repeatedly hit "update" button in an obsessive manner

11) one week later, start a thread complaining about your score.

:)
09/21/2005 02:00:07 PM · #6
I disagree with step 11. You can do that before the challenge ends.
 09/21/2005 02:04:30 PM · #7
You forgot #12:

12. After contest as completed then go to forum and complain about how the ribbons did not meet the challenge and have no artistic quality.

09/21/2005 02:06:50 PM · #8
P.S. some people like to do a final USM pass after saving the shot for web, in which case you need to save closer to 100 KB, or the sharpening will push you back over the 150 KB limit.

P.P.S. nice job explaining that muckpond.
 09/21/2005 02:11:45 PM · #9
I usually do my final USM pass after the resize.

Muckpond: What is the advantage to setting to 72dpi as in step 2?
 09/21/2005 02:15:39 PM · #10
Originally posted by KaDi:
Muckpond: What is the advantage to setting to 72dpi as in step 2?


habit.

i don't know enough to go into the specifics about pixels and resolutions and crap, but i think the save for web function converts the file to 72 dpi automagically. i could be wrong.

in any event, that's my workflow and it hasn't steered me wrong yet. :)
 09/21/2005 02:19:11 PM · #11
72 dpi is screen resolution, 300 dpi is printer resolution( varies with printer of course, but that is the norm)
 09/21/2005 02:24:05 PM · #12
Originally posted by BrennanOB:
72 dpi is screen resolution, 300 dpi is printer resolution( varies with printer of course, but that is the norm)


Thanks, both of you.
My program (PS Elements) defaults to 180 px - I'm not sure why....so I thought I'd ask if setting it intentionally during the re-size step made any difference.
(I then sharpen and 'save for web' for challenge entries.)
 09/21/2005 02:31:05 PM · #13
can I ask a question on this same topic...I tried Save For Web once and it seemed to work great BUT when I tried to view the file's properties afterwards there was nothing like the EXIF info there. Did I do something wrong or is this one of the ways it reduces the size? Thanks in advance.
 09/21/2005 02:31:10 PM · #14
i don't think that's a default of the program. i think that's a default of the camera.

my old minolta's files came in at 72dpi. my nikon's come in at 300dpi.

again, i don't know enough about the mumbo jumbo hocus pocus to explain it properly. i'd just make myself look dumb. i just know that 72dpi is for anything displayed on screen. 200+ dpi is for stuff that will be printed.

*shrug* i don't want to try and learn anything else about it at this point. something i know and TRULY value (like all of my laverne and shirley trivia) might get squeezed out in order to make room, and that would make me sad.
 09/21/2005 02:32:19 PM · #15
Originally posted by sabphoto:
Did I do something wrong or is this one of the ways it reduces the size? Thanks in advance.


you didn't do anything wrong. i don't think it includes the EXIF in the outputted file.
 09/21/2005 11:13:40 PM · #16
Does USM stand for United States Marshall? It does at my full time job. So what does it stand for here? Sorry to be so...green.
 09/22/2005 12:12:50 AM · #17
Originally posted by jtf6agent:
Does USM stand for United States Marshall? It does at my full time job. So what does it stand for here? Sorry to be so...green.


USM = UnSharp Mask in photo editing programs.

ED: Hey JT I know you are North County but San Diego dSLR has a lot of local shooters and outtings. Have you checked it out?

Message edited by author 2005-09-22 00:21:19.
 09/22/2005 12:19:16 AM · #18
Originally posted by awpollard:
Originally posted by jtf6agent:
Does USM stand for United States Marshall? It does at my full time job. So what does it stand for here? Sorry to be so...green.


USM = UnSharp Mask in photo editing programs.


also Ultrasonic motor, but in this context the previous definition.

Message edited by author 2005-09-22 00:19:56.
 09/22/2005 12:20:21 AM · #19
I really don't know if 72DPI makes any difference at all. That is a numerical result. I would imagine that the this means that the program would optimize detail for viewing at 72dpi to prevent jaggies by changing a few variables in the compression/discarding algorithms, but what do I know?

Exif data is not ususally kept in files saved for web. Please make sure you don't over-write your original. You may want it and you may need it. Having to make prints from a 150k jpg saved for web blows.
09/22/2005 07:14:09 PM · #20
Save for Web tutorial.
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