Too small really.. Or at least for good quality. For the best quality, it's best to shoot high res, and then edit to
make the image and file size whatever you want it using the various editing software. Your camera probably came with
usable editing software, and like one said, there is GIMP and many others you can download.
Most web sites like this usually resize the image to fit the page, but give you the option of clicking on the image to see it
full size. So if you uploaded a large image, the forum software will usually resize what you see here to fit the page, but let
it be clickable. I think around 900x??? or so is a good average image size as far as pixels. But most sites have a file
size limit, so you have to compress the image to be at or under the max file size that they allow. I've uploaded landscape
images as wide as 1600x??? to some forums. If the forum resizes, it will be shrunk down to fit the page, but clickable
to se full size. I'm using a Sony camera, and most often I use the Sony PMB editing software to tweak and resize.
I like it because it lets me know exactly what size an image will be with the various quality levels. So I can choose the
best level of compression/file size before I resize it.
Another example. I took this the other day.. The original image was a 4:3 12 MP 4000x3000 with a 5049 kb file size.
But then I cropped it, which left it at 2125x1914 and with further image tweaks left a file size of 1972 kb file size.
Way too large a file size for most any forum, and the image size also way too big to fit on the average display full size
without panning across to see it all.
So I then resized it to 960x864 which is a good size to view full size on the average display, and choose to have a file
size of appx 234 kb, which is a small enough file for most any forum limits. I store all my pictures on my own web server,
and do not upload them to the forums as some allow. But I still go by the same file size limits in order to not take forever
to d/l for people with slower connections and I think most forums want you to stick to the limits even if you host the image
on your own server, or somewhere like the various photo hosting sites which let you link to the picture to show elsewhere.
So this was the final result after editing and resizing. It will show on the forum as pretty small, but you can click on it to
see it full size, which is much larger than the shrunk down image you see on the forum page. Myself, for forums like this,
I stay under 300k file size for most all images. This image was a good bit under that. I consider 640x480 for the raw
image too small to really have a good quality. I wouldn't resize any that small either for the same reason. It's wasting a
lot of the high res capability of most modern cameras.