TEST: TC 2.0III, Kenko 1,4 Pro 300 on 70-200f4VR +D610

Started 5 months ago | Discussions thread
ForumParentFirstPreviousNextNext unread
Flat view
z2122
Regular MemberPosts: 263Gear list
Like?
TEST: TC 2.0III, Kenko 1,4 Pro 300 on 70-200f4VR +D610
5 months ago

This year I swichted  to full frame and nikon. I really like good glass, but as many of us the super tele-lenses from nikon are too much $$$ and too much weight. so I ordered Tamron 150-600 and now I am waiting for delivery (3 weeks..)

during that I tried some teleconverters on my D610+70-200f4VR. The Nikon 1,4 TC III is not available so I bought the Kenko 1,4 Pro300 (there are 2 Kenkos, this is the one that cost more).

1. KENKO 1,4 Pro 300

to summarize it: IQ is not good compared to blown up 70-200f4VR image (blown up image is better), and i have massive hunting of AF. It takes about 1-2 sec. until the AF locks and during that time the AF is working back and forward. I bought the kenko over internet and can return it.

left side 70-200f4VR enlarged by 1,4 (exported as 40% larger jpg from LR) , right side with kenko 1,4 (all without PP, lightroom standard) 70-200f4 stopped down by 1 f-stop
100% crop from middle left; center of frame similar result, 200mm/280mm VR on, approx. 150ft distance

the kenko is not adding value

-- hide signature --

left side 70-200f4VR enlarged by 1,4 (exported as 40% larger jpg from LR) , right side with kenko 1,4 (all without PP, lightroom standard) - 70-200f4 wide open
100% crop from center; 200/280mm VR on, approx. 50ft distance,

as you can see, the converter is not adding any value to IQ.  70-200f4 alone (and magnified in LR by 1,4) is better

===================

2. NIKON TC2.0 III

yesterday I got the NIKON TC20III.

AF works fine - no hunting, like a normla Nikon lens. The IQ is better ... but.

left side 70-200f4VR enlarged by 2 (exported as 100% larger jpg from LR) , right side with Nikon TC 2.0III (all without PP, lightroom standard) - 70-200f4 wide open
100% crop from center; 200/400 mm VR on, approx. 150ft distance,

the picture with the converter is slightly better (but only slightly)

----------------------

left side 70-200f4VR enlarged by 2 (exported as 100% larger jpg from LR) , right side with Nikon TC 2.0III (all without PP, lightroom standard) - 70-200f4 stopped down (1 stop)
100% crop from center; 200/400 mm VR on, approx. 40ft distance,

the picture with the nikon tc 20 is better and the nikon tc 20 is adding value.

----------------------------

BUT and there is a big BUT for a f4 lens with a TC 20 stopped down - you get f11 and that is not really useful or at least you have only very limited use due to f11 in real life.

the same 200/400mm, but now compared the 70-200f4 stopped down to f5.6 and the TC 20 wide open @ f8 ... real life situation ... I can have more light with the 70-200f4 alone.

the 70-200 f4 has same quality at f5.6 compared to a 70-200f4+TC20 @ f8.0

over all the TC 2.0 will also go back. it is better and i am sure it is a plus for a f2.8 lens such as an 70-200f2.8 or a 300f2.8 but for a f4 lens it does not make sense to me.

I am waiting for the Tamron 150-600 to get it delivered and will compare that to the results i have here. further I suppose that the new Nikon TC 1,4 III will be useful with a 70-200f4 lens.

If you have other conlcusions or comments please post it, your help is welcome to find the right 400mm lens (zoom) with good quality and not too much weight. 80-400G is too expensive for me - i would not use it that often ... 150-600 somehow looks ok from price / quality / usage perspective. we will see...

 z2122's gear list:z2122's gear list
Nikon D750 Nikon AF-S Nikkor 24-70mm f/2.8G ED Nikon AF-S Nikkor 17-35mm f/2.8D ED-IF Nikon AF Nikkor 180mm f/2.8D ED-IF Nikon AF-S Nikkor 50mm f/1.8G +6 more
ForumParentFirstPreviousNextNext unread
Flat view
ForumParentFirstPreviousNextNext unread
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow