Wildlife photography has been a pipedream of mine for many years now and I have had some success getting some shots I'm reasonably proud of. The telephoto lens situation though has always been a challenge - even if I could afford a 600mm f4 behemoth it would be a bit of a waste given the high cost and low frequency of the possibility of my travel to places where wild animals hang out.
The first lens many Nikon shooters would reach for is the 70-300mm zoom that is very reasonably priced, works on a full frame camera and frankly delivers pretty good results for the money. With AF-S and VR its a great tool to wet the appetite of a beginner. What I soon found though is that 300mm is rarely enough reach to get shots of wild animals or birds, and so when the opportunity to visit Yellowstone national park arose, I figured I had to find a way to get a longer lens. The answer I came up with was the 300mm f4 AF-D prime lens with a Kenko 1.4x and 2x TC although this was before the 200-500mm f5.6 Nikon lens came out, so I guess I would have chosen this instead if it were available. The results were good enough but I felt the AF kept letting me down with backfocus leading to images that I felt were always slightly out of focus. I persevered, trying to tweak the AF fine tune and lugging this lens with me to Sri Lanka and New Zealand, but ultimately it had to go.
Last Christmas I got a bargain on a Nikon 300mm f4.5 ED Ai lens and the initial results on film were great. To call the focus movement on this fully manual lens buttery would be an understatement - the quality of workmanship on this lens is incredible. I've had this suspicion that I'm now a competent enough photographer that using more manual methods would actually help me become a better photographer. I worry automation makes me lazy and not think enough before pressing the shutter. There is also no ambiguity who is at fault with fully manual operation. If its out of focus or badly exposed, that's my fault.
There is a plethora of city foxes in London now, living off the scraps from human waste. Personally I think its a shame as although they thrive in number, their fur often dilapidated and mangy, due to the garbage they consume. That being said one will have far more ease in photographing a city fox that its country bumpkin brethren, largely down the the sheer density and tameness of the city slickers. The 18+ years I lived in Shropshire I rarely saw a fox, but in London its a weekly if not daily experience.
I was in luck. Looking out of my window yesterday morning I was started to see what I thought was a "bloody big cat" only to realise a split second later it was a fox, sunning itself in the garden. I grabbed my Nikon D610 and F3 (with Tri-X pushed to 800), attached my 300mm Ai to see what results I could get. I also got some shots with the 70-300mm to benchmark the performance. The 300mm f4.5 was used with a monopod attached to its tripod collar. Below are some 1:1 crops for a rough comparison of sharpness.
Nikon 70-300mm f4.5-5.6 VR @ 300mm f8
Nikon 300mm f4.5 Ai ED @ f8
Nikon 300mm f4.5 Ai ED + Kenko 1.4x Teleplus Pro 300 @ f5.6
The three examples above are all pretty good although the subject was static and the lighting was good so it wasn't too challenging achieve this. Manual focusing worked surprisingly well with most of my shots being in focus and unsurprisingly this was easier with the D610 than the D7100 due to the bigger viewfinder. I was also surprised that the TC worked well with this lens, as previously I hadn't been too impressed with it paired with my old 300mm f4 AF-D lens - although that could have been due to it challenging the autofocus system or perhaps accentuating the back focus issues I seemed to have with that lens. So overall I had alot of fun with this manual focus telephoto and I can't wait to get some more use out of it!