D700 f/8 autofous with TC-20E III
Nikon officially claims that only D600 and newer bodies (610/800/800E/810/D4/D4S) can auto focus @ f/8 with a TC-20E III. I'm planning to combine the TC with a 70-200 f/4. Anyone else use the same combo and can speak from experience?
The thing about f/8 is a foot print at the bottom of the chart.
#1. "RE: D700 f/8 autofous with TC-20E III" | In response to Reply # 0JosephK Nikonian since 17th Apr 2006Mon 18-Aug-14 03:00 PM
With your suggested f/8 combo, it is not that the AF system will stop working, it is that it will become slower and less reliable. If you are in bright light, you may not have any noticeable problems.
What subjects/targets do you have in mind where this might make a difference?
Seattle, WA, USA
D700, D200, D70S, 24-70mm f/2.8, VR 70-200mm f/2.8 II, TC20e3,
50mm f/1.4 D, 70-300mm f/4.5-5.6 VR, 18-70mm f/3.5-4.5 DX
#2. "RE: D700 f/8 autofous with TC-20E III" | In response to Reply # 1abhijitsarkar Registered since 18th Apr 2010Mon 18-Aug-14 03:41 PM
>What subjects/targets do you have in mind where this might
>make a difference?
Wildlife. I'm planning a trip to the Glacier NP and they're known for wildlife viewing. The occasional bear far away from me mountains goats standing on ridges, things like that.
#3. "RE: D700 f/8 autofous with TC-20E III" | In response to Reply # 0
As Joseph says, you are stretching the limits -- or maybe exceeding them -- unless you are working in brilliant light, and maybe even then. The D700 is a wonderful camera, but AF starts to run out of capability when light dims, either due to a dark scene or small f/stop.
Waterloo, IL, USA
Visit my Nikonians gallery.
#4. "RE: D700 f/8 autofous with TC-20E III" | In response to Reply # 0
It depends on the ambient light level.
In bright light the AF should work but will be significantly slower than when using the lens alone. As the ambient light level drops, AF speed will get slower until it just stops working.