Sizing photos for upload to Flickr

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kartracer

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Flickr (the free version) offers viewers a range of sizes, including 500x392, 640x502, etc. So what size is best to upload? Presumably, anything resized on Flickr to view at the alternate sizes is going to lose sharpness?
 
not sure about the free version (i think its the same). But if you upload a 1024x786 image, the largest it can be viewed on flickr is that size. Flickr will automatically resize it to the lower versions
 
Yes, it will resize down,　but what I am wondering is, if I use sharpening (output sharpening for display) when Flickr resize down won't that cause all sorts of problems with sharpness (although its harder to see on smaller images, I guess)?
 
I've not had a problem with it. It's certainly not noticeable in my experience
 
It can cause images to look way over sharpened if your 1024 x 786 is very sharp to start with. On your photo stream images are shown as "Medium" size 640 x 405, unless you go to "All size" and view larger. If I am going to post an image on Flickr I will either sharpen so it looks correct at 640 (longest side) or check it looks ok at 640 x *** after I have sharpened at it's original size. Most people don't click to view it larger so my way of thikng is to make it look good at "Medium" 640 x ***

Cheers

Rob
 
I wrote some software for my wife for exactly that - Photo Resizer. I've made it available for free. (Enjoy!)

It has options to cycle through all the most popular resolutions (press + or -), e.g. 640 x ??? or whatever.

Flickr limits the size that you can *view*, but will keep photos for you to later upgrade (paid), and then they become available.

So, if you don't intend to upgrade to a paid account on Flickr, then you might just as well resize the pics so that they upload faster.

But, if you do intend to upgrade later on, then you *may* want to upload full-res pics.

Hope that helps some. :)
 
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