I shot quite a few photos in 16:9 format, why can't I print 16"x9"?
You can, but you must understand that paper doesn’t come in every possible size, it is only available in certain sizes, and none of them match a 16:9 ratio, so you must have borders, but they can be trimmed.
Why can't I print any photo shot in 16:9 format 2 up on a 16"x18" borderless print or one up on 11"x16", 12"x16", or 12"x18" print?
Why borderless? If you are matting, then you want some border behind the matt.
The photos were shot in 16:9 to be shown on my monitor and TV @ full size.
The composition was set for 16:9.
I understand that the standard frames and matting do not accommodate 16"x9"
Easily solved by doing my own framing and matting.
Never expected the printing side software to be this difficult.
If almost all the commercial TVs and Monitors are in 16:9 format, someone must like it.
It is a Hollywood size; it is designed for cinema viewing. It has never been a standard still image ratio.
Changing the 16:9 format by cropping Width + or Length of the photo has a negative effect on the outcome.
Yes, if that is how you envisaged the final image.
The paper and framing industry hasn't even caught up with the standard 35 mm 3:2 ratio, let alone more esoteric formats like 4²:3². There are standard snap shot photo paper sizes like 3 x 5, 4 x 6, and 5 x 7. There are standard enlargement sizes like 8 x 10 and 11 x 14. Only 4 x 6 match a standard 3:2 ratio.
As a printer, I will do an image any size a client or I want. But I still have to work with fixed size paper and trim anything residual to the image after printing. In the US, I can get a wide variety of roll paper in 10, 13, 17, 24, 36, 44, and 60 inches, and in a fewer types in other widths. Roll paper can be cut to almost any length.
Sheet paper unfortunately comes mostly in ANSI sizes like 8.5 x 11, 11 x 17, and 17 x 22 inches. Occasionally it is possible to get paper in standard international sizes like A4, A3, and A2. If you want anything else then it is simply a matter of printing on a standard size and trimming after.
You may want to consider the poor medium format shooter, where the image was square. I have never seen sheet paper in a square format.
Brian A