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Probably both. For example, a recent Canon 600/4 patent was 588mm f/4.12. That’s consistent with my EF 600/4 II, where the front element measures about 143mm in diameter.At the other extreme Pentax used to make a 200 f/2.5 lens with a 77mm filter. Either it wasn't 200mm or it wasn't f/2.5 or both.
My Sigma 10-18 APS-C lens, the filter size is 67mm but the front element is 35.5mm. At the other extreme Pentax used to make a 200 f/2.5 lens with a 77mm filter. Either it wasn't 200mm or it wasn't f/2.5 or both.The front element of a 70-180/2 zoom would need to be 90 mm in diameter, or so. FYI, even though the 28-70/2 is a fat lens and takes 95mm filters, the actual front element is ‘only’ about 78 mm in diameter. But a 90 mm front element could work with a 95mm filter thread.
Once again...why do you think Canon has to 'compete against Sony' in this segment, lens-for-lens? Did you spend 6 years saying that Sony had to maintain their reputation and compete against Canon's RF 28-70/2? I doubt it. Where are the sub-$1000 600mm and 800mm lenses from Sony? Why don't they have to 'compete with Canon' in that segment?It's a threat if the 70-180/200 is at 4000€ vs the 100-300 at 10000€.
They can't really make a 70-180/200 at 10000 because the Sony alternative is really really less expensive.
So they don't have a lot of margin to design this f2.0 telezoom, of course optically, weight and size but also to have a cohesive lense in the lineup that can compete against Sony.
It's a threat if the 70-180/200 is at 4000€ vs the 100-300 at 10000€.So Canon shouldn’t make a 70-200mm f/2 because with a 1.4x TC that’s a 98-280mm f/2.8 and that’s ’a threat’ to the 100-300mm f/2.8.
Shhhhh. Don’t tell Canon that a 400mm f/2.8 with a 1.4x TC is a 560mm f/4. If they ever figure that out, they’ll understand the threat that poses to a 600mm f/4, and they’ll never make such a lens.
Or maybe that ‘threat’ is why, while Canon made 7 versions of a 400/2.8, they’ve only made 5 versions of a 600/4.
Forum dwellers thinking they understand the camera market better than manufacturers is a never-ending source of amusement.
The front element of a 70-180/2 zoom would need to be 90 mm in diameter, or so. FYI, even though the 28-70/2 is a fat lens and takes 95mm filters, the actual front element is ‘only’ about 78 mm in diameter. But a 90 mm front element could work with a 95mm filter thread.Thx for the math. Honestly, I didn't realistically expect 180mm at the long end. But now you're telling me the diameter would be 90mm "only?" The lens will be smaller than the current RF 28-70mm f2 (100-104mm diameter depending on the source). The filter thread might also be smaller. I actually have hope for this lens now![]()
If it's not 180mm they would have to do a 70-160 or 70-170mm f2.0 if they want to have the world first title.Hope = deferred disappointment. A 180mm f2 lens would need a front element with a 90mm diameter, that is about the size of the front element of the RF 200-800mm. Your wish lens will be big, heavy and very expensive.
Yes, Canon needs a diet for this lens. The weight (and a fair bit the bulk, too) has kept me from purchasing it because it just too heavy to carry it around. The weight of Sonys lens is intriguing and think Canon will be up to the task to accomplish building a successor with nearly the same specs concerning weight.But the Sony 28-70 f/2 is 36% lighter than Canon's version so that's a fair bit lighter (512 grams or 1.13 pounds). For anybody shooting for hours at a time that is a lot lighter to carry.
Germany sucked yesterday, but I kept watching because I hoped they'd turn it around. Ta-da, they actually did it. So sometimes, hope is not a deferred disappointment whether it is in sports, politics (look what the Hungarian people accomplished) and sometimes even for first-world-camera-wishes.Hope = deferred disappointment![]()
Thx for the math. Honestly, I didn't realistically expect 180mm at the long end. But now you're telling me the diameter would be 90mm "only?" The lens will be smaller than the current RF 28-70mm f2 (100-104mm diameter depending on the source). The filter thread might also be smaller. I actually have hope for this lens nowA 180mm f2 lens would need a front element with a 90mm diameter, that is about the size of the front element of the RF 200-800mm. Your wish lens will be big, heavy and very expensive.
Depends what you mean. Psychologically, maybe? In the minds of a few fans. But these lenses are so esoteric their sales are probably rounding errors compared to kit models.Seems like a fantastic idea and I think would help solidify the Canon market
Hope = deferred disappointmentI am hoping for a world´s first 70-180mm F2.
Oh wow... a 70-180 f/2 would be a world's first on any mount! I wonder what size and weight it would have to be. Seems like a fantastic idea and I think would help solidify the Canon market and not so tempting to try Sony with its 50-150 f/2. And as you say, this would not have overlap since Sony does have a 28-70 f/2 so it overlaps the 50-150 f/2 by 20mm. But the Sony 28-70 f/2 is 36% lighter than Canon's version so that's a fair bit lighter (512 grams or 1.13 pounds). For anybody shooting for hours at a time that is a lot lighter to carry.It'll be interesting to see what happens. I thought camcorders just had kind of a revival. Maybe Canon wants to profit from it instead of killing them of.
For the original F2.8 L trinity you're kind of right. There is an overlap between the UWA zoom and the standard zoom, but not for the telezoom. The 24-105mm wasn't really part of trinity, it was more of a "one-lens" set-up kind of thing instead of two lenses. For the EF mount there was and still is the EF 24-70mm F4 L. A lens which was never "brought over" (is that a correct term/ phrase?) to the RF mount. The f4 trinity also only had an overlap with the UWA and standard zoom.
Interestingly, the new f2.8 STM trinity doesn't have an overlap between the UWA zoom (16-28mm) and standard zoom (28-70mm) and believe it won´t have an overlap with the telezoom. Concerning the f2 zooms, they are harder to design and every focal length saved will save significantly more weight. Therefore, I hope (and actually believe) a F2 trinity won't have any overlap.
Of course, Sony went a different way and according to an article it was a design choice because research showed that there are more people willing to buy a 50-150mm F2 rather than two f2 zooms. This could happen to Canon too, but they usually do things differently anyway. Also, I believe they want to differentiate from Sonys offering. Beating that lens is pretty hard, but coming up with a different lens that can be market as "worlds first" is a pretty good answer. Therefore, I am hoping for a world´s first 70-180mm F2.
It'll be interesting to see what happens. I thought camcorders just had kind of a revival. Maybe Canon wants to profit from it instead of killing them of.I think the 20-50 is an extremely important lens or, more exactly, an extremely important architecture. It's the first interchangeable lens in a neat package whose focal length is designed to be controlled by the camera body. Previously Canon used a kludgy add-on to do that task. For photographers, this doesn't mean much. For video, this could kill camcorders. Furthermore, it's an L and comparatively cheap.
For the original F2.8 L trinity you're kind of right. There is an overlap between the UWA zoom and the standard zoom, but not for the telezoom. The 24-105mm wasn't really part of trinity, it was more of a "one-lens" set-up kind of thing instead of two lenses. For the EF mount there was and still is the EF 24-70mm F4 L. A lens which was never "brought over" (is that a correct term/ phrase?) to the RF mount. The f4 trinity also only had an overlap with the UWA and standard zoom.Regarding overlapping focal lengths, consider the 14/15-35 & 24-70/105, 24-105 & 70-200 and 70-200 & 100-400/500. Canon does this all the time, unlike Sigma that tends to have little or no overlap.
So Canon shouldn’t make a 70-200mm f/2 because with a 1.4x TC that’s a 98-280mm f/2.8 and that’s ’a threat’ to the 100-300mm f/2.8.A 70-200 f2.0 compatible with teleconverter would be a threat to the 100-300 F2.8 so I assume the it will not be compatible with teleconverter.
Forum dwellers thinking they understand the camera market better than manufacturers is a never-ending source of amusement.This is what I always wonder. "Compete" means one thing to forum dwellers and I think something rather different to the companies involved.
Definitely not for me, I already checked.Warranty length depends on your location doesn't it? I think in some countries you would still be covered.
Thanks for the comment.Lovely shots. I especially like the B&W.
