Hi, as I'm new here, I have question. I know upsizing is not allowed, which is understandably good, but what about combination of multiple photos, like this "Panoramic stripe" of Cuban doors http://fineartamerica.com/featured/caribbean-colors-kalevi-tamm.html - is it allowed, is it this kind of unusual dimensions suitable for FAA system?
It seems not fit for cards option.
Kalevi, I think other would have a better answer for you, but on a greeting card, I believe the person buying the card can move the image around or at least re-size it. Obviously that panoramic image will not fit correctly on a greeting card, but it's a wonderful image for a print. Very unique.
pano's are fine, but they will appear as a thin strip on the screen and details in the loupe won't be there. because of that they don't often sell. but you can do them. in fact there are 3 reserved sizes and pricing for them.
I have lots of panos, and have never sold one.
I'll say that FAA display formats do not work well with extremely wide aspect ratios. I would suggest nothing higher than about 4:1.
I have some that are more like 15:1. very few views for them, much less sales.
Stitching together images generally retains the sharpness and detail of the image, so there is other problem, other than the 25mb size limit, perhaps. You may have to compress a jpg somewhat if it exceeds that limit.
You might want to consider offering this as a diptych or triptych.
...I know upsizing is not allowed...
Upsizing is not prohibited, it is not recommended. When you upsize an image in Photoshop, the resulting image usually becomes blurry or blocky, which is bad for printing. FAA tries to produce prints of a high quality and may regect an order if the downloaded image can not provide a good print of the ordered print size. FAA can not check quality of each uploaded image though, so promotion of your art, providing its printable quality and so on - it is mostly YOUR responsibility. If you can provide a printable quality of parts and the whole picture and hope to sell such panoramic pictures - you are on your own.
I have upsized a couple images just out of curiosity to see how much it degrades, not for FAA just for my self. I went from a 16mp taken with my D7000 to 24mp and there really isn't any degradation that I can tell. I also just got a D600 and upsized a picture from 24mp up to 32mp first and then to 48mp and both looked great. I saw an article online talking about whether you need D800 when you have a D600 because upsizing images works so well on a D600, so I tried it out. Sometime I'll try to push it farther. I guess it all depends on the camera, lens, and how much upsizing you do. I wouldn't try it probably on an entry level camera and cheap lens.