This is a post I started wrote early 2018 and never ended up publishing. I thought after my previous post with my initial experiences with the 300mm Ai-S IF-ED manual focus lens this would be interesting to put out there.
A little earlier this week I sold this lens and I thought I'd review some of the shots from its use in the last 3 and a half years of ownership. Originally purchased to accompany me on a trip to capture the bears, wolves and bison of Yellowstone I intended to pair it with either a 1.4x or 2x teleconverter to get more reach than my existing 70-300mm G lens could get me. I knew there would be significant trade offs there in image quality but this lens and converter cost me around $650 in total which was all I could afford so I figured I'd give it a go.
For Yellowstone I accompanied this lens with a 2x and 1.4x Kenko teleconverters. I knew the IQ would be affected but I questioned how much and if I'd care. This was deluded. The loss in quality was severe and it turns out I did care. The results with and without the 1.4x converter were nearer the same level but I felt both showed issues with nailing the focus. Regardless I decided to take the lens with me to Glacier National Park to test it out the field further however the first time I came to use the lens though the focus mechanism had ceased. Upon my return I debated whether to sell the lens as faulty or pay for a repair with an authorised Nikon service center. I chose the latter, which fixed it, for around $400.
Now repaired I chose the lens to accompany me to New Zealand, via Borneo on the way there and Sri Lanka on the way back. It was an important tool for helping me capture the Orangutan, Elephant and Leopard shown above. But even though I really enjoy these photos it became apparent to me that this lens really isn't the best tool for what I required. The release of the new Nikon 200-500mm f5.6 AFS lens got me thinking that this would probably be a better suiting to my needs and so on eBay this lens went. Perhaps this lens was better suited to a pro level DSLR with a stronger screw-drive motor than the D7100. Or maybe I could've tweaked the fine-AF feature to get better results? Who knows, but the best lens is the one you have, and these shots are proof of that.
Update April 2019
Its fair to say I don't really miss this lens. The manual focus Ai 300mm f4.5 lens I have now I think plugs the gap pretty well and I have also just acquired a manual focus 600mm f5.6 for the extra reach needed for much wildlife photography. Some people may think I'm crazy for wanting to use manual focus in 2019 to capture wildlife shots. The cost savings are obvious and to be honest I think I'm pretty good at manual focus and fortunately have good eyesight to assist. Sure there might be significant challenges with fast moving subject but to date most of my wildlife and bird photography has involved slower moving creatures so I'm optimistic on my future photography prospects with these tools.