topic 1.4 mk11 extender in EF & RF Lenses

1.4 mk11 extender

Countryside59 — Thu, 17 Sep 2015 17:52:14 GMT

I have just purchased a Canon 1.4 mk11 extender which I have attached to my 100-400 5.6 lens and 7D mk11 body. All I am able to do is set a single point focus, but when extender is removed all focusing points are again available, is this the norm for this combination?

Would be interested to hear any views on quality etc using this extender coupled with the above.

Regards

Re: 1.4 mk11 extender

cicopo — Thu, 17 Sep 2015 21:28:56 GMT

Yes that's how it works. Because it's now an F 8 lens you need to use the single center AF point. Never shot my 100-400 with a TC so no idea how it does IQ or AF wise.

Re: 1.4 mk11 extender

ebiggs1 — Sun, 20 Sep 2015 16:38:38 GMT

IMHO, the ef 100-400mm is not a good candidate for the tele extender. It's IQ is not good enough to give up anything.

Re: 1.4 mk11 extender

Countryside59 — Sun, 20 Sep 2015 17:30:27 GMT

Thanks for your info, used it overweekend and found it very slow to focus, need to set iso high, would be hopeless in low light, does not pay to cut corners,,,,,think i may invest in a Sigma 150- 600

Re: 1.4 mk11 extender

ebiggs1 — Mon, 21 Sep 2015 12:40:50 GMT

I just bought the S version of the Sigma. I am still evaluating but first impressions is great. The S is very heavy so beware. The C version may be all you need.

Re: 1.4 mk11 extender

Countryside59 — Mon, 21 Sep 2015 13:29:42 GMT

I am considering the C lens myself, would be interested to know how you find the S version, apart its weight the reviews seem pretty good

Re: 1.4 mk11 extender

ebiggs1 — Mon, 21 Sep 2015 15:56:45 GMT

I am still learning the Sigma S. I took it to the Zoo yesterday to try it on some willing subjects.

I used it on my 1D Mk IV. SS were still pretty slow. I would have liked to been able to keep them up around 1/500 but maybe next time. Some were as slow as 1/60. Not the best for this type lens. I did have my monopod but still tried hand held shots.

Its weight is going to limit how many hand held shots a person can do. Certainly a few are possible. I have the Tamron version and it is very hand holdable.

Re: 1.4 mk11 extender

ebiggs1 — Mon, 21 Sep 2015 15:43:57 GMT

Keep in mind these images have been reduced in size for the web. Also you may want to consider the weight balance with the camera you are going to use. This lens will be too much for a Rebel for instance. It really needs a 1 series or a 5D Mk III with a grip. EIther the Sigma C or Tamron would fit a smaller Canon camera better.

Re: 1.4 mk11 extender

RobertTheFat — Mon, 21 Sep 2015 23:01:01 GMT

@ebiggs1 wrote:

That's a great picture. It's been said that gorillas enjoy watching people as much as people enjoy watching them!

Re: 1.4 mk11 extender

ebiggs1 — Mon, 21 Sep 2015 23:09:11 GMT

Bob from Boston,

This is a young lady. Do you suppose she was flirting with for me?

Re: 1.4 mk11 extender

RobertTheFat — Wed, 23 Sep 2015 03:14:51 GMT

@ebiggs1 wrote:
Bob from Boston,
This is a young lady. Do you suppose she was flirting with for me?

She looks a bit amused. I assume she may be laughing at you squinting through your camera. As I've often said: if you can't stand to look like a jackass, you have no business being a photographer.

Re: 1.4 mk11 extender

Countryside59 — Wed, 23 Sep 2015 10:16:52 GMT

Couple of nice shots there Bob, that big lens does have its advantages.......still would not get to close.....good luck with the flirting

Re: 1.4 mk11 extender

RobertTheFat — Wed, 23 Sep 2015 11:23:07 GMT

@Countryside59 wrote:
Couple of nice shots there Bob, that big lens does have its advantages.......still would not get to close.....good luck with the flirting

Those pictures are Ernie's, not mine! He's the one getting laughed at by the gorilla.

Re: 1.4 mk11 extender

ebiggs1 — Wed, 23 Sep 2015 13:48:47 GMT

"He's the one getting laughed at by the gorilla"

Well, what can I say? Everyone has a hidden talent. I finally found mine.