I also notice that the Canon sliding openings on the Canon long zoom hoods are much too loose, and will open or close on their own. I don't know how they could have designed something so poorly on a camera with such high lens & build complexity out the wazoo.
They don’t seem ‘loose’ to me, there’s a click-stop in the fully closed and fully open position. Nor do they ‘open on their own’. Hyperbolize much? If yours actually does, it’s defective. I just took mine (both copies) and shook / wrist-snapped them as forcefully as I could, and with the window either open or closed it didn’t move.
If you bump it, sure it opens…and yes, I find that annoying. I know in my case, it’s usually because I carry it on a BlackRapid strap and it dangles with the hood bumping me. I suspect if I used the neck strap Canon provided (which remains unopened in the box) it wouldn’t be an issue.
Probably another debate at Canon – should we put a lock on it? But then some people would complain they couldn’t get it open fast enough.
I also notice that the 70-200 f2.8L lens zooms too easily and will sometimes drift off of the zoom position I want. Also, they have a zoom lock button which only works at the stowed position. I would have much preferred if the lock could have locks the zoom at any setting.
The zoom on mine doesn’t creep at all. I don’t use the lock, there’s no need even with the 70-200 dangling. Since you suggest other manufacturers employ superior engineering, which of them has a zoom lock that can be applied at any focal length?
And they often have a 2 position AF limit switch which ignores those who choose to shoot close images some of the times.
The point of a focus limiter switch is to speed up AF. The available options are generally matched to the focus gearing of the lens, which is not necessarily linear. If a lens focuses slower at near distances than at far distances, it makes sense to be able to block the near part of the range and a two-position limiter does the job. If a lens has a more linear drive with a long focus throw, as is the case with many of the supertele lenses, it makes sense to be able to select the near range, the far range, or the full range and thus those lenses often have three-position limiters.
They also have long tele feet without any Arca-Swiss grooves which would have cost next to nothing to add to their build (as other makers have done for a long time now).
I don't see integrated AS grooves on new Nikon or Sony long lenses. Looks like Tamron puts them on a lens or two, and Olympus put them on one. Am I missing some new trend among major OEMs? It doesn't seem all that common, as you imply.
Perhaps one reason they don't is that there's no such thing as an 'Arca Swiss' standard. What if the grooves on an OEM foot didn't work with every clamp? In particular, Really Right Stuff warns, "
Due to wide variations in other brands of Arca-Swiss compatible plates, we recommend using our lever-release clamps only with Really Right Stuff or Wimberley brand quick-release plates. ... Our lever-release clamps are not user adjustable, so the plate that you use in our lever-release clamp has to be EXACTLY the right width. Only Really Right Stuff and Wimberley build plates to the same exacting tolerances." Screw clamps are more forgiving, but personally I prefer lever clamps.
There's also the issue of balance. Compare the Canon foot of the 600/4 to the RRS replacement foot:
Note how the Canon foot sweeps forward while the rail on the RRS foot extends further back (behind the attachment to the collar). I know from experience that with a TC on the lens, that very back part of the foot needs to be at the back of the clamp to balance the lens on a gimbal (and balance is key for that application). With a flash mounted on the body, the back edge RRS foot needs to be within the clamp (i.e. the foot only occupies part of the clamp) for balance. The RRS setup is robust enough that that's fine. The point is that if the Canon foot had grooves, it still would not work in a common use case for the lens (extender with a 1-series body). Note that I have the MkII version of the 600/4, the MkIII seems to use the same foot design, but a 'feature' of the MkIII lenses is that the weight was moved further back in the lens to make them easier to handhold. That would actually make the problem of balancing on a gimbal worse!
And they don't show the lens focal distance for the current zoom position on the EVF while you're composing and taking shots (which is no problem with other brands).
My R3 shows the zoom focal length in the EVF while composing, it changes as I zoom (and I also have the option to show the focus distance enabled, which also updates 'live' during composition). My R8 has both of those options as well, they are menu options that need to be enabled.
No idea if older Canon MILCs lack the capability, but certainly it's no problem with the Canon brand as far as my cameras are concerned.
It just looks to me like they might have a lot of engineers just out of college as major parts of the teams making crucial decisions without using all other makes of cameras & lenses to make sure they are making things at least as good as the competition in all possible areas.
It just looks to me like you want to complain.