October 21, 2014, 03:05:19 AM

Author Topic: A Summary of Sigma Lens Rumors  (Read 7607 times)

Plainsman

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Re: A Summary of Sigma Lens Rumors
« Reply #30 on: July 09, 2014, 08:53:38 AM »
Surely 300-600/5.6 ie same front lens size as their 120-300.

With very moderate 600/300 ratio it should in theory mean consistent performance across the zoom range.

Best of luck to Sigma if they pull it off and actually make this one.

Unfortunately, the 120-300 weighs 3.39 kg, just over a kilo more than the Canon 300mm f/2.8 II. That is too heavy for me without a tripod or monopod.


...when you add a Canon 2x TC to the 300/2.8II then the weight difference is not very much.

If you include the Canon 2x and 1.4x TCs the cost difference in favour of the Sigma could be considerable.

Canon's answer to this lens is the 200-400 which will reach 560 with built in TC. But this is an elite lens aimed at people with very deep pockets.

This Sigma could replace a lot of lenses in one package : 300/4, 400/5.6, 100-400, 400/4DO ....etc.

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Re: A Summary of Sigma Lens Rumors
« Reply #30 on: July 09, 2014, 08:53:38 AM »

NancyP

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Re: A Summary of Sigma Lens Rumors
« Reply #31 on: July 09, 2014, 10:40:12 AM »
Part of the problem in going head to head with the Big Whites is that users want super-fast  and reliable autofocus. That is a challenge for any third party manufacturer, although Sigma has done the sensible thing and created the dock, so that new firmware can be loaded at any time.  OEM engineers make sure that all lenses are back compatible with older cameras and vice versa. Sigma doesn't have OEM protocols, so the necessary reverse engineering into hardware has left some older Sigma lenses unable to function on newer cameras. Now at least there is a hope of Sigma engineers catching up with newer camera models.

The 300-600 would be the successor to the 300-800 Sigmonster - big.

mrsfotografie

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Re: A Summary of Sigma Lens Rumors
« Reply #32 on: July 09, 2014, 11:59:02 AM »
My missing Art lens list is:
Sigma 12mm f/2.8 DG ART
Sigma 20mm f/1.8 DG ART
Sigma 24mm f/1.4 DG MACRO (1:3-ish) ART
Sigma 85mm f/1.4 DG ART
Sigma 135mm f/1.8 DG OS ART
Sigma 100-300 f/4 DG OS ART

Missing in this list is the 28mm, or is 28mm a dead prime focal length?
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Pieces Of E

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Re: A Summary of Sigma Lens Rumors
« Reply #33 on: July 09, 2014, 01:03:27 PM »
Why all the Sigma reporting here, isn't this Canon Rumors?   ::)
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Marsu42

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Re: A Summary of Sigma Lens Rumors
« Reply #34 on: July 09, 2014, 02:05:49 PM »
hmmmmm...I rather like the sound of a 24-70mm f/2 DG ART....  :D

But you probably wouldn't like the weight. Or vignetting. Or price (ymmv).  Really, this won't happen, where's a reason the rest of the world builds f2.8 zooms - "faster" means accepting a unbalance not compatible with mass market production/sales.

Why all the Sigma reporting here, isn't this Canon Rumors?   ::)

All the talk about premium 3rd party lenses proves that Canon doesn't manage to hit the enthusiast's "sweet spot" recently, though they probably don't care as their IS video primes and high-end primes/zooms will get them excellent revenues.

My problem is: If you use these lenses, why use a Canon camera body? Well, yes, rt flashes and Magic Lantern, but beyond that?

mrsfotografie

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Re: A Summary of Sigma Lens Rumors
« Reply #35 on: July 09, 2014, 02:09:35 PM »
My problem is: If you use these lenses, why use a Canon camera body? Well, yes, rt flashes and Magic Lantern, but beyond that?

Ergonomics.
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Marsu42

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Re: A Summary of Sigma Lens Rumors
« Reply #36 on: July 09, 2014, 02:14:58 PM »
My problem is: If you use these lenses, why use a Canon camera body? Well, yes, rt flashes and Magic Lantern, but beyond that?
Ergonomics.

I agree, but then again I've never shot with a Nikon for a longer time and I'm inclined to believe millions of people *are* able to adjust to them :-> ... and the difference between a right-hand 60d/6d design vs. a "pro" dual-hand joystick 5d3/1dx is probably as large as towards another brand.

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Re: A Summary of Sigma Lens Rumors
« Reply #36 on: July 09, 2014, 02:14:58 PM »

mrsfotografie

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Re: A Summary of Sigma Lens Rumors
« Reply #37 on: July 09, 2014, 02:20:59 PM »
My problem is: If you use these lenses, why use a Canon camera body? Well, yes, rt flashes and Magic Lantern, but beyond that?
Ergonomics.

I agree, but then again I've never shot with a Nikon for a longer time and I'm inclined to believe millions of people *are* able to adjust to them :-> ... and the difference between a right-hand 60d/6d design vs. a "pro" dual-hand joystick 5d3/1dx is probably as large as towards another brand.

Still, there was something 'natural' about the Canon bodies when I was looking for a DSLR. Nikon somehow always confuses me. That said, Sony isn't all that great either. I wish my NEX-6 had a better menu structure, and an easier way to do exposure compensation. The A7(r) looks like it is massively better. However I'm not ready for a full-frame mirrorless... Yet.

OTOH, on that NEX, I'm using (old) Canon lenses on a third party body. How's that?
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AlanF

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Re: A Summary of Sigma Lens Rumors
« Reply #38 on: July 09, 2014, 02:42:27 PM »
Surely 300-600/5.6 ie same front lens size as their 120-300.

With very moderate 600/300 ratio it should in theory mean consistent performance across the zoom range.

Best of luck to Sigma if they pull it off and actually make this one.

Unfortunately, the 120-300 weighs 3.39 kg, just over a kilo more than the Canon 300mm f/2.8 II. That is too heavy for me without a tripod or monopod.


...when you add a Canon 2x TC to the 300/2.8II then the weight difference is not very much.

The Canon 300/28 II with 2xTC III weighs 2.675 kg, which is 0.715 kg or 1lb 9 oz lighter than the Sigma 120-300mm, which some of would find to be quite significant held at the end of a camera.
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Rienzphotoz

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Re: A Summary of Sigma Lens Rumors
« Reply #39 on: July 09, 2014, 03:23:21 PM »
24mm ART lens sounds very tempting.
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ecka

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Re: A Summary of Sigma Lens Rumors
« Reply #40 on: July 09, 2014, 03:50:55 PM »
My missing Art lens list is:
Sigma 12mm f/2.8 DG ART
Sigma 20mm f/1.8 DG ART
Sigma 24mm f/1.4 DG MACRO (1:3-ish) ART
Sigma 85mm f/1.4 DG ART
Sigma 135mm f/1.8 DG OS ART
Sigma 100-300 f/4 DG OS ART

Missing in this list is the 28mm, or is 28mm a dead prime focal length?

As a prime shooter, I don't really miss anything in-between 24mm and 35mm FLs :). Sigma has the old 28/1.8 DG Macro in their line up, which isn't that great on FF (actually, none of the 3 are). If I remember correctly, they released all three (20/1.8, 24/1.8 and 28/1.8 ) at the same time some 15 years ago. So, if they decide to remake all three lenses for their Art lineup, then 28mm would get the least of my attention, unless it would be superior optically by a reasonable amount. For me, something like a single 21/1.8 DG Art would be perfect :).
« Last Edit: July 09, 2014, 03:54:13 PM by ecka »
FF + primes !

garyknrd

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Re: A Summary of Sigma Lens Rumors
« Reply #41 on: July 09, 2014, 04:41:48 PM »
  I am personally really excited about the 300-600mm lens. Will have to wait and see what it is. And a few reviews. Having two of Sigmas telephoto lenses, and  using them with the FANTASTIC Pentax K-3. I am in heaven. I love it so much I sent all the gear into C.R.I.S. to get calibrated together.  Might pick up a GH4 to go with the Sigma lenses for video..
  I am just about to buy the 18-35 1.8.. In Pentax mount... If AF is ok.. I will be in heaven... 

  Man I am hoping Canon really knocks my socks off with the 7D II..

 
 
« Last Edit: July 09, 2014, 04:45:52 PM by garyknrd »
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Lee Jay

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Re: A Summary of Sigma Lens Rumors
« Reply #42 on: July 10, 2014, 08:54:11 AM »
hmmmmm...I rather like the sound of a 24-70mm f/2 DG ART....  :D

But you probably wouldn't like the weight. Or vignetting. Or price (ymmv).  Really, this won't happen, where's a reason the rest of the world builds f2.8 zooms - "faster" means accepting a unbalance not compatible with mass market production/sales.

Which is, apparently, why no one builds a 70-200/2.8, a 120-300/2.8, a 300/2.8 prime, a 200/2 prime, or anything bigger than a 24-70/2.8.

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Re: A Summary of Sigma Lens Rumors
« Reply #42 on: July 10, 2014, 08:54:11 AM »

Plainsman

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Re: A Summary of Sigma Lens Rumors
« Reply #43 on: July 10, 2014, 01:00:16 PM »
Surely 300-600/5.6 ie same front lens size as their 120-300.

With very moderate 600/300 ratio it should in theory mean consistent performance across the zoom range.

Best of luck to Sigma if they pull it off and actually make this one.

Unfortunately, the 120-300 weighs 3.39 kg, just over a kilo more than the Canon 300mm f/2.8 II. That is too heavy for me without a tripod or monopod.


...when you add a Canon 2x TC to the 300/2.8II then the weight difference is not very much.

The Canon 300/28 II with 2xTC III weighs 2.675 kg, which is 0.715 kg or 1lb 9 oz lighter than the Sigma 120-300mm, which some of would find to be quite significant held at the end of a camera.


....but actually to get the flexibility of a 300-600 you would need to carry the extra 1.4xTC in your kitbag so the weight difference is actually pretty negligible...

AcutancePhotography

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Re: A Summary of Sigma Lens Rumors
« Reply #44 on: July 10, 2014, 03:23:28 PM »
Sigma 135mm f/1.8 OS Art. Aghhhhh.....

It be a shutup and take my money moment.

That would be sweet.  Sad, since I recently purchased a 85mm that I like.. but at that time there was no rumour of a Sigma 85.  Sigh.

Note to Sigma, if you publish a list of future lenses, it gives potential customers the infomation they need to schedule their lens purchases.

I guess I will wait for the 135.  I have never shot a 135 prime before but I hear good things about that FL.
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Re: A Summary of Sigma Lens Rumors
« Reply #44 on: July 10, 2014, 03:23:28 PM »