Sigma 50-100mm f1.8 Art

Interesting announcement, and a very interesting lens (provided it focuses more accurately than the 18-35). I think Sigma is smart to keep developing advanced lenses for APS-C. It is easier to do extreme things with the reduced image circle and, more importantly, no one else is doing it. It allows them to make the "L series" for APS-C - an area where the big boys are too busy trying to protect their higher end lenses.

We tend to forget around here that the majority of DSLRs out in the wild have APS-C, not FF, sensors. We at Canon Rumors by no means represent the average photographer.
 
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TWI by Dustin Abbott said:
Interesting announcement, and a very interesting lens (provided it focuses more accurately than the 18-35). I think Sigma is smart to keep developing advanced lenses for APS-C. It is easier to do extreme things with the reduced image circle and, more importantly, no one else is doing it. It allows them to make the "L series" for APS-C - an area where the big boys are too busy trying to protect their higher end lenses.

We tend to forget around here that the majority of DSLRs out in the wild have APS-C, not FF, sensors. We at Canon Rumors by no means represent the average photographer.

Interesting how Sigma keep pushing the boundaries and trying new designs, but how useful is it in practice? A Canon 1.8/50 and 2/100mm together are much lighter (the zoom weighs 1.5 kg!) and smaller. And although the Sigma likely beats them in optical quality the two primes cover FF ...
 
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TWI by Dustin Abbott said:
Interesting announcement, and a very interesting lens (provided it focuses more accurately than the 18-35). I think Sigma is smart to keep developing advanced lenses for APS-C. It is easier to do extreme things with the reduced image circle and, more importantly, no one else is doing it. It allows them to make the "L series" for APS-C - an area where the big boys are too busy trying to protect their higher end lenses.

We tend to forget around here that the majority of DSLRs out in the wild have APS-C, not FF, sensors. We at Canon Rumors by no means represent the average photographer.

If the AF is good, it could be a dream lens for sports shooters using cameras such as the 7D II or D500. The f/1.8 will save them over a full stop over rival options, and they even get the same portraiture DOF as the FF shooters get with a 70-200 f/2.8.
 
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nhz said:
Interesting how Sigma keep pushing the boundaries and trying new designs, but how useful is it in practice? A Canon 1.8/50 and 2/100mm together are much lighter (the zoom weighs 1.5 kg!) and smaller. And although the Sigma likely beats them in optical quality the two primes cover FF ...

How useful? Very. If you want a zoom lens, that is. Similarly, the solution of using a 50/1.8 and 100/2 is an AWFUL idea... if you want a zoom lens.
 
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AlmostDecent said:
If the AF is good, it could be a dream lens for sports shooters using cameras such as the 7D II or D500. The f/1.8 will save them over a full stop over rival options, and they even get the same portraiture DOF as the FF shooters get with a 70-200 f/2.8.
I think this way too. There's just a few things that doesn't quite work. First it's a bit short at 100mm.. 50-120mm/2.0 would have been better option (or even 130mm). Second there appears to be no weather sealing, that is a 'sport' class thing anyhow isn't it. And third, it's a sigma. How well does the AF work?
 
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Lens construction (elements/groups) 21/15
Filter size 82
Minimum focus distance 95mm
Aperture blades 9
Length 170.7mm (mount not specified)
Diameter 93.5mm
Weight 1490g

The site suggests a price of ¥167,400 (~$1500) and a launch date of April 22nd.

Wow. I can predict what people would say now: "For $1.5K I'd buy an L lens instead." ;D
 
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TWI by Dustin Abbott said:
... It allows them to make the "L series" for APS-C - an area where the big boys are too busy trying to protect their higher end lenses.

We tend to forget around here that the majority of DSLRs out in the wild have APS-C, not FF, sensors. We at Canon Rumors by no means represent the average photographer.
+1 Dustin
 
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In Canon crop terms, this is 80-160f2.8 Full Frame equivalent, very respectable.
Maximum magnification is "lower" but I'm not entirely sure how crop sensors factor into magnification specs. If that's 1:6.7 in Full Frame terms then this lens is still going to be slightly better for small subjects than a Canon 70-200f2.8 on Full Frame.

Here's hoping they can improve on the performance of the 18-35A. This will be a phenomenal lens if they do.
 
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