Hello
Every now and again I like to use a rarely used bit of kit, so a method of doing this usually ends up with me stacking TC,s onto my
D800E + 300mm f2.8 ED IF ais.
I have recorded the file with the telegraph pole as "handheld @ 1920mm ",
so I am going to say it was 300mm + TC 16A + TC 301 + TC 201.
I have recorded the Peacock Butterfly as 1250, but believe it is 960mm,
so I believe it to be 300mm + TC 16A + TC 301.
The TC 17ii has also been used in other combinations.
This is not a method that allows, easy to obtain consistent usable results, but if good light is available AF can be achieved with the
TC 16A in the stack. Static subjects are a must as using lower shutter speeds keep the need for very high ISO at bay.
I would be happy to take a image and offer a RAW file if there is a interest by others on the forum to process a Superlong
Telephoto capture.