Upload & Sell: Off
Thanks to fsagian, DaveOls and eceidi for your comments. Yes, I am pleased with the performance of the Vivitar lens, it's close-focusing abilities are also excellent. It's a fairly hefty and long lens as well but as I only paid $20 Canadian for it in mint condition I won't complain too loudly. I see though, that I've been taken to task by another forum member for posting these photos here. In my ignorance I wasn't aware that exclusively Nikon brand manual focus lenses were to be used here so in future I will not post any photos taken with 3rd party lenses. My apologies.