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Kenko Teleplus PRO 300 DGX 1.4x (advice Needed)  
User currently offlineIan777 From United Kingdom, joined Aug 2010, 18 posts, RR: 0
Posted (3 years 1 month 2 days 21 hours ago) and read 4442 times:


I need a little advice on the Kenko Teleplus PRO 300 DGX 1.4x Nikon AF. I have the Nikon D5000 and my main lens I use is the Nikon AF-S 300mm F4 (prime) I would like to add a tele-converter for use with this lens and camera and I was wanting to try and find out if my 300mm F4 will still auto-focus with the Kenko Teleplus PRO 300 DGX 1.4x ? I have considered the Nikon alternative 1.4x, but my budget is a little tight and I dont think I can spend the extra amount.

Many thanks for any advice given.

Ian Marsh.

8 replies: All unread, jump to last
User currently offlineoly720man From United Kingdom, joined May 2004, 6610 posts, RR: 11
Reply 1, posted (3 years 1 month 2 days 20 hours ago) and read 4431 times:

It seems that as long as the max aperture is wider than F4.5 it'll AF.

Full AF is capable with lenses having a maximum aperture of F/4.5 or brighter.


wheat and dairy can screw up your brain
User currently offlineIan777 From United Kingdom, joined Aug 2010, 18 posts, RR: 0
Reply 2, posted (3 years 1 month 2 days 17 hours ago) and read 4409 times:

Many thanks for that, the lens is F4, so thats fine.


User currently offlinedvincent From United States of America, joined Jan 2007, 1736 posts, RR: 11
Reply 3, posted (3 years 1 month 2 days 17 hours ago) and read 4406 times:
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Kenko TCs are a good choice, should work great with your prime. They're the closest thing to a matched TC that you can get on the market.

From the Mind of Minolta
User currently offlineNWA330nut From United States of America, joined Sep 2009, 115 posts, RR: 1
Reply 4, posted (3 years 1 month 2 days 16 hours ago) and read 4390 times:

Has anyone used this teleconverter with the 70-300vr?

I was thinking of pairing the two after I saw that the Nikon 1.4x isn't "compatible" with the 70-300vr unless you alter the teleconverter itself.

User currently offlinesluger020889 From United States of America, joined Mar 2005, 456 posts, RR: 2
Reply 5, posted (3 years 1 month 2 days 8 hours ago) and read 4342 times:

The combo works great together. AF is still reasonably fast and the results are still pretty sharp. You will notice a slight drop in quality in the summer months though, when the air is hotter and more humid.

This shot was taken with the combo in 100+ degree heat out in the desert, most of my shots from this trip were with the combo so feel free to have a look at them if you want to see a few more examples.

View Large View Medium
Click here for bigger photo!

Photo © Joey Collura


I would love to fly a cargo plane full of rubber dog shit out of Hong Kong!
User currently offlineruudb From Netherlands, joined Jun 2005, 164 posts, RR: 6
Reply 6, posted (3 years 1 month 1 day 12 hours ago) and read 4300 times:

You can also buy a 1.7 Soligor, working fine as well same factory as the Kenko, quality is great, most of my pictures are made with combi 300 F4 and Soligor 1.7, I also owe a 1.4 Kenko but it is most of the time in my camerabag.


User currently offlineIan777 From United Kingdom, joined Aug 2010, 18 posts, RR: 0
Reply 7, posted (3 years 1 month 13 hours ago) and read 4245 times:

Thanks, Ruud, Joey and dvincent for the advice, much appreciated. Ruud, I will check out the Soligor 1.7 for sure, thanks again.

Ian Marsh.

User currently offlinesoon7x7 From , joined Dec 1969, posts, RR:
Reply 8, posted (3 years 1 month 7 hours ago) and read 4234 times:

Quoting NWA330nut (Reply 4):

I tried it but the fit was uncomfortably tight...so I backed off. Never tried it again and have read that the 70-300VR will not accomodate the 1.4 as you stated.

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