New EF-S 24mm & USM Motor Coming? [CR1]

[Canon Rumors]

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We’re told to expect a new EF-S 24mm STM prime lens to arrive some time in the summer. The EF-S lineup is due for a shot in the arm, especially with the expected arrival of the EOS 7D Mark II.

We’re also told that a new USM motor will also be introduced some time this year, and it will be called “C-USM”, which stands for Compact Ultrasonic Motor. This technology is likely to first appear in a new 50mm lens.

This info comes from a new source.

cr

[tianxiaozhang]

Is there a particular reason that makes EF-S cameras need (dedicated) 24mm lenses?

[Famateur]

If true, and if it was released especially for the 7DII, is that more evidence that the 7DII will be aimed at videographers? Not being into video myself, is a 38MM full-frame equivalent field of view considered desirable for video? Obviously, the STM part is. Then again, there doesn't seem to be a rumor of IS with this lens, so maybe not?

[sjp010]

Is there a particular reason that makes EF-S cameras need (dedicated) 24mm lenses?

24mm on APS-C is pretty close to 35mm on full frame which is my favorite general purpose focal length.  Right now the only 24mm options are the relatively large 24/1.4, and the relatively slow 24/2.8 IS, and both are relatively expensive.  If they could make an EF-S 24mm at f/2 that is smaller than the 24/2.8 IS and south of $400, then count me in!  IS not necessary!

[dadgummit]

We’re also told that a new USM motor will also be introduced some time this year, and it will be called “C-USM”, which stands for Compact Ultrasonic Motor. This technology is likely to first appear in a new 50mm lens.

No no no no no!!!  It is a compact USM motor that made the last 50mm f1.4 a piece of unreliable garbage.  Why would you do this again when you already have a reliable usm motor that is small enough to fit in the new 24, 28, 35 mm IS lenses?

[preppyak]

EF-S really does have a gap, especially now with the new primes being so highly priced. If I'm an average consumer getting into the XXXD line, I've got the kit lens and other zooms, the 50mm, the 40mm pancake, and then everything else is $400+.

In the same way that Nikon makes what is essentially an EF-S 35mm f/1.8 for $200, I think Canon could do the same. Even an EF-S 24mm f/2.8 that's as good as the pancake would be a strong product at $150-200. I think an EF-S 24mm f/2 would probably be more in line with the other primes ($400ish)

[Chaitanya]

excellent news.

[adhocphotographer]

pleassseeee be small...  boarder line pancake...  a scone/crumpet perhaps?

[Lee Jay]

Is there a particular reason that makes EF-S cameras need (dedicated) 24mm lenses?

Can't think of one, unless it's f/2 or faster.

What EF-s really needs is a better-built, 15-60/2.8 IS.

[Random Orbits]

Something like this would only make sense if it's f/2 or faster.  17-55 f/2.8 IS covers the range and has IS.  Yes, it's more expensive, but it's focal length range is useful.

[ahsanford]

We’re also told that a new USM motor will also be introduced some time this year, and it will be called “C-USM”, which stands for Compact Ultrasonic Motor. This technology is likely to first appear in a new 50mm lens.

No no no no no!!!  It is a compact USM motor that made the last 50mm f1.4 a piece of unreliable garbage.  Why would you do this again when you already have a reliable usm motor that is small enough to fit in the new 24, 28, 35 mm IS lenses?

+1

So many people still carry the 50 F/1.4 because the F/1.2L is (for various reasons) not for them.  These folks are clamoring for a new 50 with a modern/fast/accurate AF system.  Or, put another way:  many people still use the 50 F/1.4 with it's 20+ year old clunky-not-quite-ring-USM as the best AF 50mm lens for their needs. 

Canon designers:  needs don't get more unmet than this.

Please don't shoot for the stars with new tech on a bread and butter lens;  save that for a new 180L macro or a cool new pancake lens.  But for 50mm, give us what we know you can -- an impeccably well put together "IS refresh" in the 50mm focal length -- so many of your users will be happy if you did.

And please no STM here -- I want minimum time-to-target, not a smooth focusing lens for video.

If they pooch the USM on the new 50 IS, they'd be handing this focal length to Sigma.

- A

[Rienzphotoz]

After years of using APS-C cameras with no dedicated EF-S prime lens of this or similar focal length, now they are going to release the EF-S 24mm, when I've shifted to full frame a couple of years ago. 

[neuroanatomist]

pleassseeee be small...  boarder line pancake...  a scone/crumpet perhaps?

Like the EF 40mm f/2.8 STM for FF, 22-24mm is in the 'sweet spot' for pancake design - we see that with the EF-M 22mm f/2 'pancake' lens for the EOS M.

So, this could very well be an EF-S 24mm f/2 STM lens (no IS).  That would put it at 38mm FF equivalent, a useful 'walkaround' focal length.  I suspect it would be an STM lens, like the other two pancakes. 

No no no no no!!!  It is a compact USM motor that made the last 50mm f1.4 a piece of unreliable garbage.  Why would you do this again when you already have a reliable usm motor that is small enough to fit in the new 24, 28, 35 mm IS lenses?

The 50/1.4's problematic USM implementation wasn't due to a constraint on design size, but rather the clutch design used to allow full-time manual focus in a micromotor USM lens normally not designed for FTM without damaging the gearing.  Canon already reduced the size of the Micro USM motor when going from Micro USM to Micro USM II.  The rumored 'C-USM' could be just a further reduction in size.

[ahsanford]

Is there a particular reason that makes EF-S cameras need (dedicated) 24mm lenses?

Can't think of one, unless it's f/2 or faster.

What EF-s really needs is a better-built, 15-60/2.8 IS.

Absolutely.  It could use a pancake in the 22mm range like the EOS-M has.  A small 35mm-equivalent walkaround, perhaps F/2, would be stellar on my backup body as a small walkaround setup.  The currently offered 40mm pancake is a great little lens, but on a crop rig, it's a fairly useless walkaround as a 64mm FF equivalent.

This rumor doesn't make much sense for crop, though.  If it's EF-S, it should have its FL scaled down to correct for crop.  That's why EF-S zooms start at 15mm, 17mm, 18mm instead of something longer.  So a 24mm EF-S prime seems a bit nutty.  22mm makes a lot more sense to make a 35mm FF equivalent.

- A

[ahsanford]

Something like this would only make sense if it's f/2 or faster.  17-55 f/2.8 IS covers the range and has IS.  Yes, it's more expensive, but it's focal length range is useful.

I disagree for form factor reasons.  If it's a pancake lens, there's your value proposition.  It might not be for you, but many folks would love to turn their APS-C rigs into inconspicuous + easier-to-bring-with-them-everywhere 35mm FF equivalent walkaround setups. 

So I think that a fairly quick (say F/2) wider prime in a pancake format would be very well received I think.

- A