April 20, 2014, 10:29:31 PM

Author Topic: Sigma 50 f/1.4 Art Lens Should be Amazing  (Read 11804 times)

dilbert

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #75 on: January 16, 2014, 09:08:51 PM »
...
In my view we spend too much time pixle peeping and reading graphs and statistics. One of my ohter passions in life is music and high end audio systems. Compared to that domain, photography is like mathematics ;)

If you ever want to kill an audiophile discussion or argument about "quality of sound" then all you need to do is ask someone (particularly vendors) for proper blind testing where the person executing the test (playing the music or producing the sound) has no interaction with the person doing the testing (i.e listening and evaluating what they hear.) That or to measure the results with proper testing equipment rather than human ears.

One thing that I have noticed is that speakers and amplifiers and what not always seem to be producing warmer and more open sound to the point that I'm wondering why they haven't caught on fire yet. Camera manufacturers (like Canon) seem to always  claim that image quality is better, more DR, sharper images, etc, and I'm starting to wonder whether or not we're in danger of cutting ourselves with them.

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #75 on: January 16, 2014, 09:08:51 PM »

Eldar

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #76 on: January 17, 2014, 04:30:23 AM »
...
In my view we spend too much time pixle peeping and reading graphs and statistics. One of my ohter passions in life is music and high end audio systems. Compared to that domain, photography is like mathematics ;)

If you ever want to kill an audiophile discussion or argument about "quality of sound" then all you need to do is ask someone (particularly vendors) for proper blind testing where the person executing the test (playing the music or producing the sound) has no interaction with the person doing the testing (i.e listening and evaluating what they hear.) That or to measure the results with proper testing equipment rather than human ears.

One thing that I have noticed is that speakers and amplifiers and what not always seem to be producing warmer and more open sound to the point that I'm wondering why they haven't caught on fire yet. Camera manufacturers (like Canon) seem to always  claim that image quality is better, more DR, sharper images, etc, and I'm starting to wonder whether or not we're in danger of cutting ourselves with them.
He he, you don´t kill an audiophile discussion by suggesting blind testing, you rather throw fuel on the fire. To manipulate a blind test is the easiest thing to do and to judge a system requires time, which is very difficult with blind testing.

An important element here is the subjectivity of the evaluation and people´s obsession with disagreeing. Some like it loud, some like it soft, some like it hard, some like it analytical, some like it warm, some like classical/acoustic, some like metal, some like surround, some like stereo, some like digital, some like analogue ... the list is endless. Some setups work for orchestra, some for chamber, some for heavy metal, some for voice. But very few works well across them all.

And in photography, we have some of the same issues. Portrait vs. architecture vs. sports vs. landscape vs. wildlife, light, color, contrast, bokeh, AF speed vs. accuracy, size, weight, ruggedness ... the list can be veeerry long. One lens being the ultimate for one thing may well be crap for another. But isn´t that part of what makes this fun? ;)


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SeanL

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #77 on: January 17, 2014, 02:31:01 PM »
Zeiss Otus and now these Sigma claims...

Might these manufacturers have an inside track on high MP 35mm sensors in the pipeline?

Eldar

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #78 on: January 17, 2014, 02:57:42 PM »
Zeiss Otus and now these Sigma claims...

Might these manufacturers have an inside track on high MP 35mm sensors in the pipeline?
They know the empirically proven theory: "Moore's law is the observation that, over the history of computing hardware, the number of transistors on integrated circuits doubles approximately every two years. The law is named after Intel co-founder Gordon E. Moore, who described the trend in his 1965 paper.[1][2][3] His prediction has proven to be accurate, in part because the law is now used in the semiconductor industry to guide long-term planning and to set targets for research and development."

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dcm

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #79 on: January 17, 2014, 03:36:43 PM »
They know the empirically proven theory: "Moore's law is the observation that, over the history of computing hardware, the number of transistors on integrated circuits doubles approximately every two years. The law is named after Intel co-founder Gordon E. Moore, who described the trend in his 1965 paper.[1][2][3] His prediction has proven to be accurate, in part because the law is now used in the semiconductor industry to guide long-term planning and to set targets for research and development."

in 2005 Moore also noted this cannot be sustained indefinitely and we would eventually run into the limitations of physics (in 10-20 years).  There are indications from the semiconductor industry that the rate is already slowing to doubling every three years.
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Eldar

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #80 on: January 17, 2014, 04:03:07 PM »
They know the empirically proven theory: "Moore's law is the observation that, over the history of computing hardware, the number of transistors on integrated circuits doubles approximately every two years. The law is named after Intel co-founder Gordon E. Moore, who described the trend in his 1965 paper.[1][2][3] His prediction has proven to be accurate, in part because the law is now used in the semiconductor industry to guide long-term planning and to set targets for research and development."

in 2005 Moore also noted this cannot be sustained indefinitely and we would eventually run into the limitations of physics (in 10-20 years).  There are indications from the semiconductor industry that the rate is already slowing to doubling every three years.
The 5DII with 21.1MP was released in March 2010. A 45MP by March 2014 would be proper then ;)
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mackguyver

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #81 on: January 17, 2014, 04:04:18 PM »
They know the empirically proven theory: "Moore's law is the observation that, over the history of computing hardware, the number of transistors on integrated circuits doubles approximately every two years. The law is named after Intel co-founder Gordon E. Moore, who described the trend in his 1965 paper.[1][2][3] His prediction has proven to be accurate, in part because the law is now used in the semiconductor industry to guide long-term planning and to set targets for research and development."


in 2005 Moore also noted this cannot be sustained indefinitely and we would eventually run into the limitations of physics (in 10-20 years).  There are indications from the semiconductor industry that the rate is already slowing to doubling every three years.

Yes, it seems that it is beginning to slow, but given the pixel density of the D800(E), Sony APS-C sensors, and most of all cell phones, it's clear that the technology to produce 60+ MP sensors for FF cameras already exists.  The yields are probably too low to be cost-effective for FF sensors at the moment but in time they will be.  The lens makers (OEM and 3rd party) would be fools to "wait" for the technology.  Better to have the lenses ready when the sensors hit the market.  Take a look at the number of Nikkor lenses that were essentially made obsolete by the D800 (all of the ones not on this list: http://nikonrumors.com/2013/04/29/nikon-published-an-updated-list-of-recommended-lenses-for-the-d800e-camera.aspx/) and it makes sense to be ahead of the curve :)
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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #81 on: January 17, 2014, 04:04:18 PM »

Albi86

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #82 on: January 19, 2014, 05:50:39 AM »
They know the empirically proven theory: "Moore's law is the observation that, over the history of computing hardware, the number of transistors on integrated circuits doubles approximately every two years. The law is named after Intel co-founder Gordon E. Moore, who described the trend in his 1965 paper.[1][2][3] His prediction has proven to be accurate, in part because the law is now used in the semiconductor industry to guide long-term planning and to set targets for research and development."


in 2005 Moore also noted this cannot be sustained indefinitely and we would eventually run into the limitations of physics (in 10-20 years).  There are indications from the semiconductor industry that the rate is already slowing to doubling every three years.

Yes, it seems that it is beginning to slow, but given the pixel density of the D800(E), Sony APS-C sensors, and most of all cell phones, it's clear that the technology to produce 60+ MP sensors for FF cameras already exists.  The yields are probably too low to be cost-effective for FF sensors at the moment but in time they will be.  The lens makers (OEM and 3rd party) would be fools to "wait" for the technology.  Better to have the lenses ready when the sensors hit the market.  Take a look at the number of Nikkor lenses that were essentially made obsolete by the D800 (all of the ones not on this list: http://nikonrumors.com/2013/04/29/nikon-published-an-updated-list-of-recommended-lenses-for-the-d800e-camera.aspx/) and it makes sense to be ahead of the curve :)


This is going to create a clear shift in Canon optical signature. Most of the current L primes are already designed for great creamy bokeh rather than great sharpness across the frame. I believe that releasing sharper lenses in the < 85mm range will partly sacrifice the creaminess. The new Nikon 58mm is quite creamy but, case in point, not amazingly sharp. Having great sharpness and creamy bokeh might take an Otus-like optical effort (and size and price).

With that I don't mean to say they're going to have a bad bokeh. Creamy bokeh is not the only possible pleasant bokeh. But it's just going to be different from what people were used to with their 35L, 50L, 85L, etc....

Badger

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #83 on: February 03, 2014, 09:17:37 PM »
Any word on pricing?
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jdramirez

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #84 on: February 03, 2014, 11:16:24 PM »
Any word on pricing?

I have a few guesses... but no.
Upgrade  path.->means the former was sold for the latter.

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Eldar

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #85 on: February 04, 2014, 01:41:05 AM »
Has anyone seen an announced release date?
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Albi86

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #86 on: February 04, 2014, 04:29:37 AM »
Has anyone seen an announced release date?

Nope... I assume that they're keeping the full announcement for next week's CP+.

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Re: Sigma 50 f/1.4 Art Lens Should be Amazing
« Reply #86 on: February 04, 2014, 04:29:37 AM »