sagittariansrock said:
privatebydesign said:
sagittariansrock said:
dilbert said:
privatebydesign said:
dilbert said:
The 16-35/f4L IS is not weather sealed, which is the same as the 17-40/f4L. From the B&H listing:
* When an optional 77mm Protect filter is used, the lens realizes dust- and water-resistance for use in trying environmental conditions.
It has the same weather sealing as the 17-40, the 16-35 MkI and MkII, and the 50 f1.2L. What is your point?
That it isn't weather sealed.
So which one is?
All the rest of the L's that are rated as weather sealed, they don't need a clear filter to seal the front, everything from the 14mm MkII to the 800mm. Some of the older designs, the 35 f1.4, the 70-200 f2.8 non IS etc don't have the rear seal that is the key, though to be honest "weather sealing" is a misnomer, in many instances it is just a bit of tape over a hole.
It was a rhetorical question. I meant to say- none of them are "weather sealed". At best they can be weather resistant, and in case of a lens with a moving front element (w.r.t. the barrel) it requires a filter.
I also just realized that I have both of the two non-weather resistant L lenses in Canon's current lineup, and my only lens with IS is the 70-200 II.
Hmmm... I suppose I could add one lens with both weather resistance AND IS to my lineup in one go, but should I...
Canon doesn't appear to use the terms waterproof or weather sealed in their product literature that I have seen. These may reflect what we wish, but not what they promise. There appears to be three cases for L lenses. In many L lens manuals, the first page titled "Thank you for purchasing a Canon product." lists features, including a feature of the form
"Tight seal structure ensures excellent dust-proof and drip-proof performance."
Without the use of any measures or standards, these can be open to interpretation. My 100 f/2.8 L IS Macro, 70-200 f/4L IS, 24-105 f/4L IS, and even the 8-15 f/4L have this feature.
A few lenses like my 17-40 f/4L, the 16-35 f/2.8L II, and presumably the 16-35 f/4L (it appears on the web page, but no manual is posted yet) have an additional note of the form
"Since the front element of this lens moves when focusing (zooming), you need to attach a Canon PROTECT filter sold separately for adequate dust- and water-resistance performance. Without a filter, the lens is not dust or water-resistant."
A surprising number of lenses, mostly the older versions, lack this feature, including my 35 f/1.4 L and 135 f/2 L. Similarly the 14 f/2.8L and 24 f/1.4L lacked this feature but both of the version II lenses include it. Similarly for the zooms like the 70-200 f/2.8L, 28-70 f/2.8L, and 17-35 f/2.8L.
It's best to check the lens manual if you aren't sure.