mas24 wrote:
I would suggest that if you are on a budget to get a Kenko Brand. I would suggest you get the 1.4 teleconverter over the 2X. Your FOV on a crop will be multiplied 1.5 on your crop sensor. A 2X will increase degradation.The Kenko Brand is about $150 more or less. And before you buy any teleconverter, check to see what lenses are compatible with it. All teleconverters are not created equal, regardless of the name brand. Good luck.
+1 Tenured wisdom...
I have the Kenko Teleplus PRO 300 DGX 1.4x AF Teleconverter and use it on my AF-D Nikkor lenses...
Which will not accept Nikon AF Teleconverters... What was Nikon thinking?
https://www.bhphotovideo.com/c/product/674566-REG/Kenko_PRO3001_4XDGXN_Teleplus_PRO_300_DG.htmlCost effective... and yes I agree with mas24 suggestion to avoid the 2X variant which is valid inference...
I won't even waste time trying to explain why... It's simply not optically reasonable by any standard...
However I would suggest considering the new AF-P DX NIKKOR 70-300mm f/4.5-6.3G ED VR Lens
https://www.bhphotovideo.com/c/product/1275036-REG/nikon_20062_afp_dx_nikkor_70_300mm.html Available for $395 with a 5 year Nikon warranty or $208 white box...
This in my humble estimation by far offers the highest price/performance ratio of any prosumer Tele Nikkor even the highly popular AF-S 200-500mm f/5.6E VR at more than three times the price.
This new AF-P 70-300mm has VR to die for... seriously good for 4 stops (really)
The downside? It's definitely consumer grade build and likely will not withstand much abuse...
btw, I tested the AF-P 70-300mm against the AF-S 200-500mm and it's Pulse Stepper Motor drives the AF faster than the 200-500mm!
And there is virtually little difference in acuity between the two (yes I checked this repeatedly and at f/6.3 on both)
Stop the AF-P down to f/8 and it is tack sharp!
And please do not PM me for a source of a White Box version... Google it yourself...
I paid Nikon for my variant but did shoot a White Box version and could see no difference in my limited testing...
Hope this helps, or is at least food for thought...
I wish you well on your journey BobinVa