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DX in common with many other forums have a guideline for the sizing of images posted

DX Guideline = Image dimensions must be no more than 640x480 pixels with a file size of no more than 55K,
keep in mind that even this much may take over 5 seconds to fully appear.

Here are some examples of why the guideline of 640x480 pixels was chosen
I have used this Cobalt1959 (aka Eddie) post to illustrate the problems (in no way am I implying that this post was faulty - in fact it was better than perfect regarding sizes)

You will need to imagine that the images below are as they would be viewed on your monitor
(all these images are 640x465 pixels and between 36 to 44k file size)

1600x 1280 pixels , absolutely useless for viewing without scrolling, left, right, up and down
View attachment 31511

1280 x 960 pixels , far too big for viewing, without scrolling
View attachment 31510

1024x768 pixels , still too big for viewing.
View attachment 31509

640 x 480 pixels , perfect for viewing on any monitor.
View attachment 31508

The cars shown are the Rover BRM (Sports Saloon) Rover BRM (LeMans Gas Turbine powered car) and a BRM Grand Prix car

Avoid putting off your viewers
Since the average web surfer will, only wait on average 5 seconds for your web page to download (or appear in their browser) it is important to have small file sizes on your web pages so, they download quickly. Most usability experts (those who study how people like to use the we), suggest files sizes of 25 KB - 50 KB. Although broadband (high speed Internet access with cable, DSL, and wireless), has made tremendous strides in market penetration, obtaining critical mass at 33% of Internet users, nevertheless nearly 67% of web users still have slow dial up connections, (these figures are ever changing - please correct me if I am wrong)

Images are used on web for many reasons: branding, highlighting, navigation, providing supplementary information, division, humour etc. Images consume more space than text, however, and thus take a longer time to download. If you feel you want to show a large image, display a thumbnail image instead, and link this to the larger image with a message such as 'Click to view the full-sized (200 KB) image.' Minimise the use of animated GIFs (images that endlessly cycle through a short animation.) Not only do these appear garish (and frequently annoying), but they are larger than still images and thus slower to appear.

Photographs will generally be smaller (and look better) if saved in JPG format. Cartoon-like images, will generally be smaller (and look better) if saved in GIF format. Most images will be more useful if accompanied by a caption. If you can't think of a relevant caption, this may be a sign that you don't need the image.
Armed with these tips, your images will load quickly and will be well regarded by your viewers.
 

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HEY!!! Thats not the pic I posted. . . :giggle :giggle :giggle
But seriously, thanks Ken, great points. I didn't know that so many people out there are still using dial-up. The media makes it sound like cable has completely taken over. . .
 

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That is a most excellent explanation with those illustrations Ken. :nicejob :nicejob I know you don't have an example in 800x600 but from my experience, even that is too big to show on a screen without scrolling vertically. To that end, I've started cropping my photos to 800x530 (got the idea from vegasracer) and it works great for thumbnail links.

All in all 640x480 is the ideal for quicker display on most monitors.
 

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Maybe I missed this tid bit of information that is posted somewhere else but I can't find it anywhere...

When creating a post, I'd like to include pics that I posted in the gallery. How do I do that?

Thanks!
Sean
 
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Sean,

One of the gripes I have about the Gallery is the fact it doesn't generate a code to link pictures from the Gallery to the Forums.

So you have to do it the old fashioned way.

I use Firefox, so I right click and copy IMG location and then copy and past the code in the forums using the IMG Tags.

If your using IE, your going to have to view the properties and then copy/paste the code using the IMG Tags.
 

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Forgive me if I sound dumb,but I just recently purchased a digital camera and I'm trying to post pictures but I dont understand this whole pixel size thing.How and where do I change the size.I want to be able to post pics.Thank you in advance.
 

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To add to Winston's reply, let me explain that there are actually two issues regarding picture "size" (1) dimensions and (2) filesize. On this forum, we've requested people to keep their photo dimension no larger than 640 x 480 pixels (width x height). Regarding the issue of filesize, the limit is 60kb. When you take a photo from your digital camera, it'll generally be very big (in both aspects) and that's where the photoediting software comes into play. If you have any more questions, feel free to ask.
 
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