I am new to printing large photos. I want to create some landscape and flower canvas shots to hang in the home. I shoot with a 8mp camera with good lenses and use a tripod. Is there any rule of thumb on how large I can print?
If you're sending your photos out for enlargements, like to El-Co Color Labs, don't upsize them
yourself. Let the company do the interpolation. I've gone as high as 30x60 and been impressed
with their work.
I routinely make prints 16x24-inch prints from 1D Mark II images. I do my own custom upsampling as discussed in recent sharpening threads. Although the CS3 raw converter and simple unsharp mask can do a great job too.
Roger