wanted to attach some true landscape photos, but they will not attach.
Is there a file size limit?
I tried several but they are unreduced jpegs from a 6 megapixel camera. Will not attach to post.
The problem could be a file size limit. Another, more remote, possibility that comes to mind is that space characters in the file name can cause problems on some servers. IAC, it's not generally advisable to post the unreduced original of a shot, if for no other reason than that many viewers have limited bandwidth and/or slow connections.
Think of it like this: a 6 mp camera has that many pixels because printers need millions of pixels to create prints on paper. That's one use for a digital photograph. Another use is to look at the picture on a computer monitor. I'd sure love to have a 6 mp monitor, but most of us make do with something more along the lines of 1 mp. 1024 by 768 is still the most common monitor resolution.
When sharing photos with others - whether friends, family, or forum members - the standard practice is to provide a copy of the original resized to somewhere in the vicinity of 400 to 800 pixels on the longer side. We all understand that a lot of detail is missing from a reduced version of a photo and take that into account. My sense is that the only time sharing an unreduced version of the original is appropriate is when the other person wants to print the picture and you are OK with that.
I don't have any software to reduce file size.
I haven't loaded the camera software.
Most cameras come with at least one software application that provides enough editing capability to resize. And just to make sure we're clear: you don't want to resize the original. Make sure you have a safe copy of each unedited original you value.
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Having said all that and assuming your primary intent for posting those as yet unseen landscapes is to get feedback, Howie's response to your yellow leaves pic is pretty indicative of what you're in for. I assume you liked it or you wouldn't have posted it. Howie disagrees. I can break the tie by saying that I generally like it. The composition pleases me and the shadings are delicate. The next person to post may well side with Howie. I can then respond in more detail, saying that I would like the picture even better if the background, being flat, were on better talking terms with the leaves, being curved. But that juxtaposition may be one of the picture's essential elements in your eyes and someone somewhere is bound to agree.
It will be interesting to learn - say, a year from now - whether you ended up getting more value than bruises from the process. ;)