Sigma announces all-new 50mm F1.4 DG HSM 'Art' lens

Eldar said:
This is a very interesting lens. I'm sure it will be at least as sharp as the 35/1.4. But I truly hope it will have a nicer bokeh than the 35. Anyway Canon must do something with this challenge and it will be interesting to see.

I read that some of you are waiting for a 50mm f2 IS from Canon. I find it a bit hard to be enthusiastic for such a lens. I don't think I would buy anything with a focal length <100mm at less than f1.4. The f2 is too close to the f2.8L zooms.


Primes aren't just for speed / small DOF. Primes are smaller and (with occasional exceptions) considerably sharper than zooms.

- A
 
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Eldar said:
I read that some of you are waiting for a 50mm f2 IS from Canon. I find it a bit hard to be enthusiastic for such a lens. I don't think I would buy anything with a focal length <100mm at less than f1.4. The f2 is too close to the f2.8L zooms.

You know, I thought so too at first, but then I realized you cannot get the DoF of a 50/2 with a 24-70/2.8 at any focal length within its range (with a close to equivalent FoV).

Eldar said:
I guess I'm less than average concerned with size and weight. My compact camera is a 5DIII with the 24-70 2.8L II.

True that. I don't think I can picture myself standing erect carrying a 600/4 (even with that flag thingy).
 
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sagittariansrock said:
You know, I thought so too at first, but then I realized you cannot get the DoF of a 50/2 with a 24-70/2.8 at any focal length within its range (with a close to equivalent FoV).
True, but I can with a 55/1.4, plus some. My point is not against primes. I love primes. But I like them to be faster options.
 
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Eldar said:
sagittariansrock said:
You know, I thought so too at first, but then I realized you cannot get the DoF of a 50/2 with a 24-70/2.8 at any focal length within its range (with a close to equivalent FoV).
My point is not against primes. I love primes. But I like them to be faster options.

Oh, I know. Your post mirrored what I was thinking when I was contemplating a possible 50/2 IS- that it won't be worth it especially since I already have a f/2.8 zoom. But then I checked the DoF calculator and to my surprise realized the 24-70/2.8's DoF cannot equal 50/2's at any FL within its range. That's why I responded to it. I'd still not buy a f/2 prime though (ok, most likely not).
 
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