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So it has been announced - the Sigma 14-24mm f/2.8 DG HSM ART


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#1 Klaus

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Posted 09 February 2018 - 07:09 AM

https://www.sigma-gl...art/a_14_24_28/

 

The MTFs look substantially better than for the f/4


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#2 borisbg

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Posted 09 February 2018 - 08:12 AM

Do the charts show vignetting more than 2.5 stops?

#3 Rover

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Posted 09 February 2018 - 08:16 AM

Klaus, I feel for you.


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#4 JoJu

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Posted 09 February 2018 - 10:33 AM

https://www.sigma-gl...art/a_14_24_28/

 

The MTFs look substantially better than for the f/4

 

Stay fair. 14 mm is a bit less complicated to do than 12 mm  ;)

 

Sigma needs to become a bit more careful with their double or triple focal lengths. 14 mm are covered with two zooms, one fast prime, then 20 and 24 the same. 24-35/2 or 24/1.4 and 35/1.4?

 

It's good to have choices - but somehow it would be better to know about the upcoming choices. I'm not sure if I had chosen the 14/1.8 if I had an idea about the 14-24/2.8 to come. MTF look very good, now I just wonder how flare behaviour will be. And of course, Sigma should and could solve the filter design. It comes either with tulip hood or round without hood, and there's not only the mount conversion service but also the front conversion service. One day they will have an aperture conversion service and we need to decide how many blades we want.  :unsure:

 

:D



#5 obican

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Posted 09 February 2018 - 11:30 AM

Zeiss Classic 15/2.8 also had the front conversion service, it's a good option for people who rely on filters. I think they solved the issue completely by giving the Milvus version a removable hood, which is actually quite impressive.



#6 JoJu

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Posted 09 February 2018 - 11:36 AM

What good is a cylindrical hood for filters, if the front-element of the lens is protruding?



#7 obican

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Posted 09 February 2018 - 11:45 AM

Sigma hood removal doesn't make it work with filters? That's stupid!

 

And apparently that's the way it is. 

 

Maybe someone will create a filter holder that extends enough to clear the front element but still, this is stupid.



#8 MatjazO

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Posted 09 February 2018 - 11:56 AM

Sigma needs to become a bit more careful with their double or triple focal lengths. 14 mm are covered with two zooms, one fast prime, then 20 and 24 the same. 24-35/2 or 24/1.4 and 35/1.4?

:D

That’s easy, 24/1,8 Nikkor. 😉

Having choice is good. 🙂

#9 JoJu

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Posted 09 February 2018 - 12:18 PM

Maybe someone will create a filter holder that extends enough to clear the front element but still, this is stupid.

 

I still have a 3D printed filter holder customised for Nikkor 14-24 and as well 150×150 filters for it. It's a rather expensive idea to use these kind of super big filters, not to mention the transport of that big surfaces.

 

I might go the Irix way: They have a filter holder behind the rear element. I'd be interested in their 11 mm. Okay, it's a bit complicated to unmount the lens, put the filter in (not to mention how to focus with an ND 3 filter). But the fat filterholder I bought I just don't take with me.



#10 Rover

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Posted 09 February 2018 - 12:20 PM

It comes either with tulip hood or round without hood, and there's not only the mount conversion service but also the front conversion service. One day they will have an aperture conversion service and we need to decide how many blades we want.  :unsure:

 

:D

That's a great idea. Make our lenses modular, like the way things were in the days of the T-mount. :D



#11 obican

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Posted 09 February 2018 - 04:45 PM

I remember one adapter, probably from Canon to Sony E, that could take filters in. That was a great idea, honestly. 

 

  • Works with all lenses
  • Easily removable filter to focus
  • Compact


#12 JoJu

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Posted 09 February 2018 - 05:19 PM

Tomorrow I plan to get an 11 mm Irix blackstone, maybe in exchange of the Sigma 20/1.4 which is seeing not much daylight. The lens popped up in my mind every month or so and I think I want to know what's about it.



#13 obican

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Posted 09 February 2018 - 07:05 PM

Or you can go Sony and buy the Voigtländer 10mm :P

3%2Bbz%2Bkapturk%25C3%25B3w.JPG

 

 

Apples to oranges, I know. But look at the size of that thing! 



#14 JoJu

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Posted 09 February 2018 - 08:51 PM

It's easy to get small with f/5.6, no?  :) All 3 lenses could hide behind the Sigma 14/1.8, so size is no deciding factor. Curiosity is.


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#15 miro

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Posted 12 February 2018 - 08:53 AM

I just wonder why so many and similar UVA high resolution/price/weight lenses. At the same time the choice of tilt and shift lenses is very limited



#16 JoJu

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Posted 12 February 2018 - 09:50 AM

The Sigmas are benefitting of their big aspherical glass element which they are pretty proud to be able to mold. And the overall optical quality shows they are doing a good job on that.



#17 Brightcolours

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Posted 12 February 2018 - 10:20 AM

Ultra Violet Angle?  :lol:  :ph34r:






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