Sigma 24-70 f/2 OS HSM Coming? [CR1]

[davidahn]

Just wondering, how often do you (the readers) shot at 2.8 and want something faster?

...This will be a large 24-70 lens... Unless the IQ is significantly better than Canon's at mid apertures, I will skip this lens.

Yes, I shoot faster than f/2.8 (f/1.4-2.0) ALL THE TIME. So if this lens is real, I WANT IT:
1. I'm tired of swapping primes, and my 14 f/2.8, 35 f/1.4, 85 f/1.4 aren't enough, need 24mm too, OR... a 24-70 zoom.
2. I hate flash photography, and for available light indoor or night photography, I need a fast lens AND OS.
3. I'd GLADLY give up a stop of aperture (vs. f/1.4 primes) for 3-4 stops of OS; I was going to give up 2 stops with the Tamron 24-70. Zoom + OS = slam dunk. If the Sigma doesn't have OS, I will probably opt for the Tamron for the VC.

Many mention weight concerns. But if I can carry one 40 oz lens (1.1 kg) instead of 70 oz of primes (21, 23, 26 oz for 24, 35, 85mm f/1.4 primes), save minutes of lens swapping, and avoid missed shots swapping lenses, I'd do it in a heartbeat.

 

[vscd]

>More than 10 years have passed since the Canon introduced a DO lens. They should be able to make DO lenses
>with enough contrast by now...

Or maybe DO was the wrong way. Physics don't change, even after 10 years

 

[CarlTN]

I second that. Canon should get the engineering staff to start again working on great ideas.

It seems to me it's not about ideas, but about laws of physics - the innovative 200-400L is heavy for a reason, the same reason why they left IS out of the 24-70L2. And they are innovative with IS primes and hybrid af on the 24-70/4, while your request for just "updating" the traditional 35L with better iq contradicts the great ideas you seem to want.

One real innovation though will be the new line of DO lenses, there have been lots of patents on CR, but who knows when these will be released - probably only when they sold a non-DO prime to everyone so people have a reason to upgrade

If Canon released a new line of DO lenses, I bet you would see a lot of people in forums like this, complaining that they don't have enough contrast...and wishing they would make a counterpart that did not use diffractive optics. There's no shortage of people who like to complain.

More than 10 years have passed since the Canon introduced a DO lens. They should be able to make DO lenses with enough contrast by now... ;D

They should also be able to make 1.6x sensors at least on par with those found in Nikon, but apparently they can't.

 

[Pi]

Anyone else experience "exposure" challenge with the new series of sigma lenses?

I did but not with the new ones - with the Sigma 15 (produced last year). The exposure was at least one stop brighter and inconsistent with my 5D2. I always thought that this was some oddity of the fisheye design that Canon knew how to deal with but Sigma did not.

 

[tron]

I second that. Canon should get the engineering staff to start again working on great ideas.

It seems to me it's not about ideas, but about laws of physics - the innovative 200-400L is heavy for a reason, the same reason why they left IS out of the 24-70L2. And they are innovative with IS primes and hybrid af on the 24-70/4, while your request for just "updating" the traditional 35L with better iq contradicts the great ideas you seem to want.

One real innovation though will be the new line of DO lenses, there have been lots of patents on CR, but who knows when these will be released - probably only when they sold a non-DO prime to everyone so people have a reason to upgrade

If Canon released a new line of DO lenses, I bet you would see a lot of people in forums like this, complaining that they don't have enough contrast...and wishing they would make a counterpart that did not use diffractive optics. There's no shortage of people who like to complain.

More than 10 years have passed since the Canon introduced a DO lens. They should be able to make DO lenses with enough contrast by now... ;D

They should also be able to make 1.6x sensors at least on par with those found in Nikon, but apparently they can't.

True, that's why we wish improvements on this forum

 

[Marsu42]

They should also be able to make 1.6x sensors at least on par with those found in Nikon, but apparently they can't.

Wrong thread :-o but anyway:

"Apparently" - but appearances can be deceiving. The other possibility and the one I believe is that Canon doesn't want to because they'd have to invest more ¥¥¥ than they'd get a return of invest.

True, Sony has some important patents, but with the new 20mp crop Canon chose to go for other features like live view / video af and keep using their older sensor fabs/process. Why? Because *even* if the 70d sensor would be on par with the d7100 Nikon would still keep the more aggressive marketing and specs like af points, so why would Canon even want to try to match them here? They seem to be doing alright just the way they are, crop is "good enough" for mass production, ff for iq/low light.

 

[Pi]

They should also be able to make 1.6x sensors at least on par with those found in Nikon, but apparently they can't.

Wrong thread :-o but anyway:

"Apparently" - but appearances can be deceiving. The other possibility and the one I believe is that Canon doesn't want to because they'd have to invest more ¥¥¥ than they'd get a return of invest.

True, Sony has some important patents, but with the new 20mp crop Canon chose to go for other features like live view / video af and keep using their older sensor fabs/process. Why? Because *even* if the 70d sensor would be on par with the d7100 Nikon would still keep the more aggressive marketing and specs like af points, so why would Canon even want to try to match them here? They seem to be doing alright just the way they are, crop is "good enough" for mass production, ff for iq/low light.

I am not sure how the low DR affects their sales - but this is something that becomes known to the "general public" as well, you can find it in the Amazon reviews, etc. Even the vague mentioning of the Canon sensors being inferior to Nikon ones has its effect.

Yes, it is the wrong thread...

 

[YuengLinger]

Crazy time for Canon to be sticking to the high price AND NO REBATE for its 24-70mm 2.8 II.

My version I of the Canon needs replacement, now nine years old. Hope the Sigma comes out soon.

 

[StudentOfLight]

They should also be able to make 1.6x sensors at least on par with those found in Nikon, but apparently they can't.

Nikon Crop sensors are slightly larger. Canon APS-C is 1.6x crop, Nikon APS-C is 1.5x crop. So for camera bodies with the same resolution the Nikon should be able to offer slightly better IQ.

 

[vscd]

Crazy time for Canon to be sticking to the high price AND NO REBATE for its 24-70mm 2.8 II.

No Rebate? 250€ here...

http://www.canon.de/For_Home/promotions/cash_back/

 

[CarlTN]

They should also be able to make 1.6x sensors at least on par with those found in Nikon, but apparently they can't.

Nikon Crop sensors are slightly larger. Canon APS-C is 1.6x crop, Nikon APS-C is 1.5x crop. So for camera bodies with the same resolution the Nikon should be able to offer slightly better IQ.

True, but it's not the slight size advantage that is making the difference, it's the construction of the sensor itself.

And I'm sorry I somehow had posted this in the wrong thread!!!

As for the Sigma 24-70 f/2, apparently that was a pipedream...bigtime!

 

[Jibz]

Hey SIGMA, what's up ?

Could you please come with this 24-70 f/2 OS soon ?
I'm waiting for you.

A huge SIGMA 35 fan.