01-07-2015, 09:09 PM
Quote:Nikon gives for the TC-17EIII 1.5 f-stops and for the TC-20EIII 2 f-stops. They don't mention a decreasing aperture for the TC-14EIII, so either they "forgot it" or I have to believe my colleague who owns those converters (in version I and II, I believe) and told me that with the 1.4× converter the f-stop remains the same.
??? I own it (TC-14EII), and definitely the max aperture I can dial with it and the 300 f/4 is f/5.6... I wouldn't understand how a teleconverter could keep the same aperture.
In any case, this Nikon official page explicitly says there's 1 stop loss:
http://www.nikonusa.com/en/Nikon-Product...E-III.html
stoppingdown.net
Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2
Plus some legacy Nikkor lenses.
Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2
Plus some legacy Nikkor lenses.