Posts: DavidCollins | Ugly Hedgehog

Its very frustrating

Sep 20, 2020 08:32:56 #

Hi thanks for that information, what i cant get my head around is the fact my canon EF 75-300 1:4-5.6 lens works with the kenko 1.4x and will autofocus. If i fit the canon EF 100-4001:4.5-5.6L IS to the canon 1.4x it refused to auto.

Sep 19, 2020 14:35:03 #

Thank you very much, very informative

Sep 16, 2020 12:59:00 #

Yes in the past my idea of focus and reality seemed to differ hense the joy of auto focus. Also i do mainly aviation photography and its so much easier with auto

Sep 16, 2020 12:30:52 #

Thanks, i was really hoping to maintain autofocus with the 1.4x, but seems unlikely from what ive been told, it just seems the 1200d isnt powerful enough

Sep 16, 2020 09:21:21 #

Yes it may be, i bought online from someone that assured all works, but it seems i didnt account for the spec of my camera

Sep 16, 2020 09:13:56 #

Im not sure what you mean, can you explain

Sep 16, 2020 08:55:30 #

its says Kenko C-AF made in Japan

Sep 16, 2020 08:45:51 #

I have also tried both extenders on a 5D mk2 and a mk3, all working on the mk3not the mk2, i have fiddled with the settings on the mk 2 but cant get autofocus

Sep 16, 2020 08:40:30 #

Jrhoffman75 wrote:

One option for consideration is the Kenko Teleplus HDPro 1.4X extender. It doesn't electronically change the signaled aperture, so the camera thinks the aperture is the reported lens aperture.

As such it will allow focusing at the effective f/8 aperture on an f/5.6 lens.

It doesn't alter the real effects of an extender - reduced light and slower AF, but it does work. And when I compare with my Canon 1.4X I don't notice a quality difference.

Hi i actually bought a kenko teleplus pro 300 before the canon version, now i have 2 that wont work on my eos 1200d

Sep 15, 2020 12:25:57 #

Thanks Paul
I bought from someone that confirmed it was working fine on his body (5d) so i stupidly assumed it worked on my 1200D, my mistake, it looked OK in the compatibility chart, just not the body, but i didnt know this

Sep 15, 2020 12:07:38 #

Hi ive just fitted the extender and lens to a borrowed 5D, all works fine, so its the 1200D that isnt compatible

Sep 15, 2020 10:15:38 #

ok thanks for that, i was assured it would work with auto, but you obviously know better thanks for the assistance

Love Aviation photography

Sep 15, 2020 10:03:59 #

(Introduce Yourself)

None down here either

Sep 15, 2020 09:38:07 #

I have a Canon 1200D body and a Canon 100-400 EF zoom.
I want to purchase a 1.4x extender but im not sure its compatible with the lens/body
Any help gratefully received
David