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Why The EF 200-400 f/4L IS 1.4x Delay?

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dilbert:

--- Quote from: Canon Rumors on November 13, 2012, 07:59:43 AM ---...
The latest we’ve heard, and from a pretty knowledgeable I person is that the lens has needed a redesign in regards to the “bump” that holds the built-in 1.4 TC.
...

--- End quote ---

The bump is one the same side as all of the knobs as things that you want to change. For the average shooter that has their right hand on the shutter button and left hand on the lens, I can see it getting in the way as you move your hand along the lens.

Even its proximity to the on-off knob for the TC might be such that it is hard to turn the know whilst you've got your eye up to the camera because you can't really approach the knob with your hand against the lens. When you have the camera+lens down, I can see it being easier to get at the knob... but then how easy will it be to turn that knob when wearing big gloves with that bump there in the cold?

I can easily see them moving the bump to either be on top or on the other side of the lens.

dilbert:

--- Quote from: Viggo on November 13, 2012, 08:30:04 AM ---It couldn't be that it is in the way when dismounting the lens?

--- End quote ---

On that side of the lens, it could easily be getting in the way of almost anything. It really needs to go on the top side of the lens as the only thing that it could then get in the way of is flashes and the lens is too long for that bump to be of significance with flashes that would be impacted.

M.ST:
A few people had the chance to test the lens.

Most of them are not very happy with the build quality of the build in TC and the image quality if you add the TC.

I have both TC´s, why should I pay extra money for a build in TC?

My personal opinion: The lens is too big and havy as a walkaround lens compared to the EF 100-400 IS. The solution with the build in TC is not amazing. For the mentioned price I prefer the normal big whites.

gunnar997:

--- Quote from: M.ST on November 13, 2012, 09:50:49 AM ---The lens is too big and havy as a walkaround lens compared to the EF 100-400 IS. The solution with the build in TC is not amazing. For the mentioned price I prefer the normal big whites.

--- End quote ---

this lens is not meant to be a walk around lens.. just like the 400 f/2.8 and 500 and 600 f/4's.. you don't see people walking around town with those unless they have a purpose to.. its meant for sport, wild life, and journalism when you need flexibility and be the fastest possible lens you can get. hence the price tag.
the 100-400 is more of just a general purpose tele that does everything which is why it is smaller and lighter

as far as the TC goes.. its for connivence.. so you don't have to take your body off put the TC on and put your body back on.. Just move the lever and you're ready to go! just like TV lenses (which is what that stems from) it just makes things easier on the fly so you can get that shot more easily

EchoLocation:
I'm definitely not going to buy this lens, but it has been really interesting following it from the 5DIII spy shots in Africa(or wherever) to the Olympics. There is definitely quite a bit of mystery and speculation about it. I've been wondering why it hasn't been officially announced yet.

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