We rely on revenue from ads to pay the bills. Please support our efforts by allowing the ads to show on the Nikon Cafe. Alternatively, consider becoming a site subscriber for $10 per year to remove all ads.
John, I do not think a TC would work well on this lens. It is a wonderful lens on its own, but have never found TC's to be much good on zooms, especially ones that have a 5.6 speed. Maybe be thinking about a prime to reach a bit further. I know this might not be in the budget, but B&H has the Tamron 300 2.8 for $2299 after this mail in rebate. That is the prime that TC's really work well on. Just something to think about.:smile:
I once stacked 2x and 1.4x Kenko TCs behind a 80-200 f/2.8 D giving an affective f/8 max aperature. While the AF was slow it was still pretty accurate (though CA was horrible and resolution was not great either). So I'd say unless the 70-300mm VR has some physical attribute that causes it not to work (lens hits TC element) or you have an older non-DG TC I'd say it would work... though for how well the images turns out, you'll have to be the judge