Hi James,
I drop the rolls in the photolab to process, but for internet share or for print I scanning them myself.
If I want to print, I scanning them in a 35 megapixel resolution, so I can do large, even in a size of 24"x16" print in a 300dpi print resolution.
But I not need to print too much photo, (no one interesting about them), so I don't have large printer. If I need a print, I take the picture files to the photolab.
Once I tried a "pro digilab" where they are scanned and printed a picture. They said they can do it and that is gonna be almost as seen on a slide! But instead, even a dust was printed out on a picture! So I'm not turst in the photolabs, so I do the scan but let them print. If I need to do more print, I gonna buy a large printer. There is a 17" wide printer in my mind. Much cheaper to print at home than pay for a digilab to do it.
Yes all the photo I have posted yet, was taken with the Sigma 300-800. Since I have it this is my primari lens. The zoom range is so perfect for wildlife photography, I can't ask a better lens. But also I use a Sigma 120-300 too. Right know, I working on a hummingbird project, where I use the Sigma 120-300 lens.
Before I got the Nikon and the Sigmonster, I used a Pentax Z1p and a Sigma 170-500 for wildlife, but since I got the Nikon System the Pentax mostly used for close up and landscape photos.