This is a completely different lens than the RF 100-500 4.5-7.1 L IS.Should that not be 100 -500 in the lens list? It says 100 -400 but the f stops don't match.
It doesn't. Being first party, and equal or better optically is enough for Canon to offer it. See the RF 600 mm f/11, that costs more than a Sigma 150-600 5.0-6.3. Those two are harder to compare (zoom, aperture), but I think Canon is perfectly fine positioning this lens relative to its own lineup.It will have to beat Sigma's pretty good EF 100-400 in some way though. Either by being lighter, cheaper, or faster focusing.
Also, I don't think the 100-400mm from Sigma is all that great, is it? I remember AlanF being disappointed in multiple copies.
I am sure it will be very affordable. Cropped to 600 mm it is an f/11 equivalent. Being a zoom, it offers more flexibility than the RF 600mm f/11, so I could see them charging a bit more than for the RF 600 mm f/11. Maybe 999 €. Or The could go slightly below its price, if the optical quality is lesser due to being a zoom.Unless the RF 100-400mm comes in at a low price and a super compact size, I don't see much point of it alongside the RF 100-500mm.
Unless Canon introduces entry level crop bodies as well (I still don't think they will), releasing slow aperture zooms isn't an unfortunate thing. It is Canon providing equivalents or upgrades for its crop lenses. The RF 24-105 4.0-7.1 is the equivalent of a 15-65 mm 2.5-4.5 on APS-C, so a replacement for a 15-85 3.5-5.6 type lens. This zoom is a 60-250 mm 2.5-4.5 equivalent, something that you can upgrade to when you want a little more quality than the excellent EF-2 55-250 mm IS STM provides, without paying too much or going Sigma.
Hard to believe (and disappointing) that the 100-400 will be a 7.1 rather than 5.6.
I agree, that f7.1 at the long end seems to become a trend in some RF glass unfortunately
The L glass is still coming. Catering to the entry level isn't taking Away from anything. It makes the RF system more future proof by ensuring there will be people apart from the current EF owners migrating or entering the system. Don't be so negative about affordable RF glass. Not every body has the enthusiasm or option to spent so much in gear, especially for niche lenses like a Tele. I am happy that Canon seems willing to lower the price of tele options.
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