shac wrote:
I think the confusion about the new 100-400's size compared to the 200-600 was a misunderstanding of the wording in an earlier rumour. The similarity of these 2 zooms is not in their lengths, but that both have internal zooms
I think the overall length of the new 100-400 will about the same as the original 100-400 fully extended. Which is just under 12 inches. Which puts it in the same ballpark as the 200-600. Which is about 12 and half
I like internal zoom lenses, but this is one of their downsides, especially if you travel with or carry the gear a lot. These lenses are always long enough to accommodate the longest focal length, while “telescoping” zoom lenses will pack more compactly.
Very true. I still think I prefer an internal zoom though
As far as this one goes. Still waiting on a few more details like weight, MFD, and price before making a final decision
I get that. I think part of it is the legacy memory of the days when extending zooms were generally signified cheaper lenses of lower optical quality. But that’s not the case any more and hasn’t been for a while. Many of the extending designers are just as good as the internal zoom lenses.
- - -
MMP wrote: speedmaster20d wrote:
Hum…. f/4.5 does not sound appetizing to me especially that it is likely to be priced like an f/4
100% agreed. I can see how it may be popular with those who don't already own a telephoto zoom, but assuming price will be high, I don't see what would entice people to add the lens if they have a 70-200 (which tolerates TCs quite well), a 200-600, any prime in that range, or even the Sigma 300-600.
The f/4.5 and apparent lack of OSS puts this lens in a strange category unless the lens is somehow extremely affordable with near flawless optics.
My first thought (as a person who is moving to Sony very soon) was that a f/4 100-400 lens sounded pretty interesting.
When I heard f/4.5, my next thought was was, “that’s still pretty good!”
Then I thought about my current (Canon) 100-400, which is f4/5-5.6… and it occurred to me that this new lens is the same at the short end and only 2/3 or a stop larger at 400mm… and that it would give up the plus of small packed size if it is an internal zoom… and I’m no longer quite so sure.
- - -
Add a TC 1.4 and you get a 180-600mm f6.3…
Small point perhaps, but that would turn a 100-400 into a 140-560mm lens.
(100 x 1.4 =140 140, and 400 x 1.4 = 560.)
Apr 28, 2026 at 10:04 AM
Previous versions of gdanmitchell's message #17028440 « New 100-400 lenses »
