I am having a lot of trouble getting accurate and trustworthy information about the effect of convertors on the following setup:
Nikon AF-S 80-400mm F/4.5-5.6 ED VR
Nikkor AF-S 105mm F2.8 G IF-ED VR Micro
My primary requirement was to get more reach on the 80-400mm, whilst keeping the AF ability. Then I realized a convertor could also be beneficial to my macro lens. Now I am looking for the proper convertor that finds the sweet spot:
Is compatible on both of the above lenses
Maximal magnification up to the point where AF keeps working
Let us assume for now that I accept the loss of light, and that cost is no issue. What would be the sweet spot? i have tried looking for this answer myself but get very different answers. Here's on source I'm using:
That overview suggest that AF is not possible on the macro lens, not on any of these convertors. Yet I see many users in forums reporting that it works just fine.
Furthermore, regarding the telezoom, it only mentions "AF limitations", with this foot note:
"Autofocus is available only with cameras that offer f/8 support. These include the D4, D800/D800E, D600 and D7100."
Since I have a D800, and if I would be naive, this would lead me to conclude that even up to the TC-20E, auto focus would work. Yet other information mentions that AF isn't possible at all for a F4.5 lens like this.
I'm struggling to find that sweet spot, a convertor to work on both lenses, with the maximum magnification possible for as long as AF works on both lenses, yet there is conflicting information all over the place.
Care to help?