https://press.sigmaphoto.com/product/04/sigma-launches-rf-lenses/
APS-C RF coming from Sigma.
10-18 f/2.8
18-50 f/2.8
16, 23, 30, and 56 f/1.4
All AF. All supposed to work with IBIS in the RF system.
From the release:
* “These products are developed, manufactured and sold under license from Canon Inc.“
Shocking new to me, no that U care for APS-C at all, but it's a really a big change in their business strategy, now there is little more hope on those lovely FF Sigma dg dn lenses in RF mount, I own a bunch of them in E-mount and will be so cool if they can get to RF mount, like those 14mm F1.4 dg dn, 20 f1,4 dg dn, 35 f1.2 dg dn.......
Nobody here was sitting on Canons board. No idea if this is a change in strategy or right on schedule.
I don't think if you need to be seated on Canons board to have any clue on what's more and what's less likely. I think it's likely this was a change in strategy.
I don't think we have anything at hand
I think we have some things at hand.
to suggest the likelihood of it one way or the other, except for our own beliefs. Nothing suggesting
I think we do have some information suggesting it wasn't strategy all along. We can't distract hard facts from that info, but we can determine what's more and what's less likely.
So opinions we can't agree on? We can always have them, it takes a few seconds to come up with that
But if you really think we have something tangible to deduce this from, do share.
Again, we can't deduce hard facts.
Maybe I'll be with you then. All you are saying is we have something, without saying what that something actually is
That is not entirely true, as I mentioned the bridge to full frame before. Canon historically didn't do a lot for crop shooters when they had a relatively closed EF mount. Sure, third party lens makers did produce bright crop prime lenses for the EF mount (like the Sigma EF-s 30mm f/1.4), but those lenses suffered from AF inconsistencies, keeping the mount relatively closed. The only Canon crop primes for the EF mount where the EF-s 24mm f/2.8 and the EF-s 60mm f/2.8 Macro. So historically Canon didn't support low light compact options for crop cameras, forcing folks with low light needs to full frame (and to pay for full frame margins), using full frame primes as a bridge to full frame by not producing bright crop primes.
For M the situation was different, as in the beginning of M the system was seen as never competitive to full frame (DSLRs) anyway due to slow AF, while later on it became clear the M system wouldn't last for ever as the RF mount was on the horizon anyway, so Canon would either kill crop entirely or kill M and EF-s only. In that context it was o.k. to allow for brighter primes, as sooner or later folks with low light needs would find themselves in an orphaned mount and a discontinued system.
I think Canon started out with RF-s with the same strategy as for EF-s, but find either crop camera sales too low, or full frame sales strong enough anyway (or both), hence changing that strategy, as the full frame upgrade path appeared to be not that important anymore.
Are these hard facts? No. Is it more likely than not? I think so, as I think it fits the changing context overtime. Is it a matter of bias because it aren't hard facts? I think that's a bit too easy reasoning, as likelihood is a matter of less precise knowledge, but non the less rather knowledge than opinion. A weather forecast isn't just a subjective opinion or a matter of bias just because you're not 100% sure the prediction will hold true.
I don't see it, so until then, I don't think we have anything to suggest one way or the other besides our biases
this wasn't the strategy all along
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Using f/8.0 or narrower on a 32Mp 1.6 crop sensor will cause noticeable softening due to diffraction. It's nice to have a light weight lens, but there's no free lunch.