Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 29 May 2014 (Thursday) 23:58
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Problems with SIgma 50mm 1.4 ART

 
Thestructured
THREAD ­ STARTER
Member
210 posts
Likes: 1
Joined Jun 2012
Location: Richmond Virginia
     
Aug 18, 2014 21:48 as a reply to  @ post 17074252 |  #61

Currently on my 5th copy of the sigma 50 art.

This is the worst one because none of the others needed AFMA with the center point on my 5d3 or 6d (the problems only occurred with outer points). This one is off with the center points at various distances. I am not going to buy a sigma dock and spend hours trying to fix it after paying $950 for a brand new lens.

I think sigma should refund me the $100 something dollars I've had to spend returning these poorly quality controlled lenses to dealers. Buyers beware.


Maybe I'll try one again when they update the firmware.


2x Nikon D750// nikkor 24-70 2.8g // sigma 35mm 1.4 art// sigma 50mm 1.4 art// nikkor 85mm 1.4g// Nikkor 70-200 2.8 vr ii // 4x SB700// WL x3200 + x1600 http://www.marekkphoto​graphy.com (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
strobe ­ monkey
Goldmember
Avatar
1,234 posts
Likes: 16
Joined Apr 2008
Location: Arizona
     
Aug 18, 2014 22:58 |  #62

This is the reason why I don't buy STIGMA lenses, even their flash dg530 were problematic with my camera, I can't remember which one now as it was years ago. With tamron, I have tried 28-74 f2.8 and 90mm macro without any problem. I NEVER buy stigma now... I don't even waste my time reading reviews about their new lenses.


6D, 7D, EF35 f2, EF50 f1.4, EF50 f1.8
Sold:
EF 70-200 F4, EF 24-105L, EF 24-70L, EF 17-40L, EF 85 f1.8, Stigma 10-20

  
  LOG IN TO REPLY
industryimage
Member
194 posts
Likes: 2
Joined Aug 2009
Location: Antrim
     
Aug 19, 2014 03:12 as a reply to  @ Thestructured's post |  #63

Can't see 5 lens being wrong !! I think its more likely to be the body.


Warren


Bodies: Canon 5dmk2 | Canon 1dmk3
Lenses: Canon 24-70 f/2.8L| Canon 135 f/2L | Canon 300 f/2.8L IS mkII | Sigma 35 f1.4 ART | Canon 70-200 f2.8 is mkII
Event Website (external link)
Client Website (external link)
Facebook page (external link)

  
  LOG IN TO REPLY
Dlee13
Goldmember
Avatar
4,246 posts
Gallery: 616 photos
Likes: 3896
Joined Apr 2012
Location: Sydney
     
Aug 19, 2014 04:08 |  #64

Thestructured wrote in post #17104469 (external link)
Currently on my 5th copy of the sigma 50 art.

I'm honestly surprised you still kept trying after the 2nd or 3rd copy. After 5 copies aren't you ready to give up? I know I wouldn't bother after 2.


Sony Alpha A7III - Sony FE 35mm f/1.8 - Sony FE 90mm f/2.8 Macro
Sony FE 85mm f/1.8 - Canon EF 16-35mm f4L IS -
Canon EOS M5 - Canon EF-M 32mm f/1.4 - Canon EF-M 22mm f/2 - Canon EF 11-22mm f/4-5.6 STM

Blog (external link) | Flickr (external link) | 500px (external link)

  
  LOG IN TO REPLY
ctwatkins
Senior Member
Avatar
529 posts
Likes: 12
Joined Dec 2011
Location: Bluegrass State
     
Aug 19, 2014 05:57 |  #65

industryimage wrote in post #17104837 (external link)
Can't see 5 lens being wrong !! I think its more likely to be the body.


Warren

My thoughts too. I've tried both the Sigma 35 & 50 Art on my 5D3 . . . damn impressive lens. Both were spot on with no adjustment on dock needed. The only area they were lacking in was occasionally missing focus in poor light.


Gear: 5D MKIII * 6D * 35L (1.4) * 135L (2.0) * 24 - 70L (2.8II) * 70 - 200L (2.8ISII) * 200L (2.0IS) * 580 EX * Induro CT213 * PCB AB B800 (X3) * Pocketwizard Plus

  
  LOG IN TO REPLY
Charlie
Guess What! I'm Pregnant!
16,118 posts
Gallery: 8 photos
Likes: 6183
Joined Sep 2007
     
Aug 19, 2014 08:48 |  #66

Dlee13 wrote in post #17104874 (external link)
I'm honestly surprised you still kept trying after the 2nd or 3rd copy. After 5 copies aren't you ready to give up? I know I wouldn't bother after 2.

That must mean that the IQ is out of this world :p


Sony A7riii/A9 - FE 12-24/4 - FE 24-240 - SY 24/2.8 - FE 28/2 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - EF 135/1.8 Art - F 600/5.6 - CZ 100-300 - Astro Rok 14/2.8 - Tamron 17-28/2.8 - 28-75/2.8 RXD, 70-200/2.8 VC

  
  LOG IN TO REPLY
c2thew
Goldmember
Avatar
3,929 posts
Likes: 4
Joined Aug 2008
Location: Not enough minerals.
     
Aug 19, 2014 15:37 |  #67

still trying to figure out how you sourced 5 sigma art lenses when they're backordered all over the place.


Flickr (external link) |Gear|The-Digital-Picture (external link)|The $6 mic | MAGIC LANTERN (external link) | Welding Filter
Go Support Magic Lantern 2.3!!

  
  LOG IN TO REPLY
snake0ape
Goldmember
Avatar
1,223 posts
Gallery: 3 photos
Best ofs: 1
Likes: 11
Joined Jan 2007
Location: Los Angeles
     
Aug 19, 2014 16:04 |  #68

On a separate post, I believe he is suspecting his 5diii to be defective rather than the 50mm.


5Diii | 50D | 8-15L 4| 16-35L 2.8 II| 24-70L 2.8 II | 70-200L 2.8 IS II |Tamy 150-600 | Σ35Art 1.4 | 40 2.8 | Σ50Art 1.4 | 85L 1.2 II | 100 2.8 Macro | Helios 44-3 58mm f2.0 |Helios 40-1 85mm f1.5 | 1.4x & 2x teleconverters

  
  LOG IN TO REPLY
raptor3x
Senior Member
Avatar
728 posts
Gallery: 5 photos
Likes: 78
Joined Aug 2011
Location: Rutland, VT
     
Aug 19, 2014 16:20 |  #69

I've seen similar behavior with my copy, the central double cross points are absolutely rock solid on the 5D3 while the outer focus points are not terribly good. The focusing on the 1Ds3 however is absolutely abysmal.


Bodies: X-T1, E-M1ii, G9 Lenses: µ.Z 7-14 2.8, µ.Z 12-40 2.8, µ.Z 25 1.2, X 18-55 2.8-4, µ.Z 40-150 2.8, µ.Z 45 1.2, µ.Z 60 2.8, µ.Z 75 1.8, PL 200 2.8

  
  LOG IN TO REPLY
snake0ape
Goldmember
Avatar
1,223 posts
Gallery: 3 photos
Best ofs: 1
Likes: 11
Joined Jan 2007
Location: Los Angeles
     
Aug 19, 2014 16:42 |  #70

raptor3x wrote in post #17105980 (external link)
I've seen similar behavior with my copy, the central double cross points are absolutely rock solid on the 5D3 while the outer focus points are not terribly good. The focusing on the 1Ds3 however is absolutely abysmal.

http://www.andrewsgibs​on.com …5d-mark-iii-and-eos-1d-x/ (external link)
41 of the 61 focus points are cross types focus points. If you are using a f2.8 lens or wider, then the 5 middle cross types become double-cross types (2x sensitive). I am more than happy with the normal cross types. What I wish for are cross-types points further toward the edges.


5Diii | 50D | 8-15L 4| 16-35L 2.8 II| 24-70L 2.8 II | 70-200L 2.8 IS II |Tamy 150-600 | Σ35Art 1.4 | 40 2.8 | Σ50Art 1.4 | 85L 1.2 II | 100 2.8 Macro | Helios 44-3 58mm f2.0 |Helios 40-1 85mm f1.5 | 1.4x & 2x teleconverters

  
  LOG IN TO REPLY
raptor3x
Senior Member
Avatar
728 posts
Gallery: 5 photos
Likes: 78
Joined Aug 2011
Location: Rutland, VT
     
Aug 19, 2014 16:58 |  #71

snake0ape wrote in post #17106019 (external link)
http://www.andrewsgibs​on.com …5d-mark-iii-and-eos-1d-x/ (external link)
41 of the 61 focus points are cross types focus points. If you are using a f2.8 lens or wider, then the 5 middle cross types become double-cross types (2x sensitive). I am more than happy with the normal cross types. What I wish for are cross-types points further toward the edges.

Yeah, I'm well aware of the AF point distribution. I haven't found the non-double cross points, I'm including the regular cross type points here, to be terribly reliable with this lens though. I've found I pretty much have to stick with the double cross points, but when I do the lens is incredibly consistent in focus which I've never seen before in a Sigma lens.


Bodies: X-T1, E-M1ii, G9 Lenses: µ.Z 7-14 2.8, µ.Z 12-40 2.8, µ.Z 25 1.2, X 18-55 2.8-4, µ.Z 40-150 2.8, µ.Z 45 1.2, µ.Z 60 2.8, µ.Z 75 1.8, PL 200 2.8

  
  LOG IN TO REPLY
Thestructured
THREAD ­ STARTER
Member
210 posts
Likes: 1
Joined Jun 2012
Location: Richmond Virginia
     
Aug 24, 2014 16:05 |  #72

industryimage wrote in post #17104837 (external link)
Can't see 5 lens being wrong !! I think its more likely to be the body.


Warren

The thing is, I have tried them all on not one, but THREE bodies. Two 5d mark iii's and a 6d.

Identical behavior on both 5d's and the problems are different on the 6d, generally less pronounced.Sure, it's possibly that my friend and I both have crappily assembled 5d's. With a canon 50mm 1.4 the focus is spot on with my 5d iii with all points, though, but with my 85L there's a VERY slight front focus shift with outer points kind of like what the sigma art is doing, but much, much less severe which is why I've never noticed it before.

This 5th copy of the sigma are is terrible even with the center points and needed hours of tinkering with my sigma dock to get it working somewhat consistently (with the center points). Did nothing for the outer point problem, though.

And yeah, the IQ of this lens is worth it, but having tried 5 copies I can assure everyone there is definitely noticeable sharpness differences in different copies, they aren't all that amazing. The sigma 35 and the 85L wide open are still sharper.


2x Nikon D750// nikkor 24-70 2.8g // sigma 35mm 1.4 art// sigma 50mm 1.4 art// nikkor 85mm 1.4g// Nikkor 70-200 2.8 vr ii // 4x SB700// WL x3200 + x1600 http://www.marekkphoto​graphy.com (external link)

  
  LOG IN TO REPLY
NatDeroxL7
Goldmember
1,194 posts
Gallery: 9 photos
Best ofs: 1
Likes: 16
Joined Dec 2009
     
Aug 24, 2014 17:52 |  #73

I'm pretty happy with my copy with the outer corner points in my 5d2 even on servo. Just spent another weekend shooting in various light conditions, lots if fog and low contrast as well, still had acceptable keeper rates with the lens.

It's a great buy, I can't believe I have this IQ at 1.4 for the price


http://www.flickr.com/​photos/52047419@N04/ (external link)
http://mpdphotography.​wordpress.com/ (external link)

  
  LOG IN TO REPLY
Dlee13
Goldmember
Avatar
4,246 posts
Gallery: 616 photos
Likes: 3896
Joined Apr 2012
Location: Sydney
     
Aug 24, 2014 19:44 |  #74

Thestructured wrote in post #17115150 (external link)
The thing is, I have tried them all on not one, but THREE bodies. Two 5d mark iii's and a 6d.

Identical behavior on both 5d's and the problems are different on the 6d, generally less pronounced.Sure, it's possibly that my friend and I both have crappily assembled 5d's. With a canon 50mm 1.4 the focus is spot on with my 5d iii with all points, though, but with my 85L there's a VERY slight front focus shift with outer points kind of like what the sigma art is doing, but much, much less severe which is why I've never noticed it before.

This 5th copy of the sigma are is terrible even with the center points and needed hours of tinkering with my sigma dock to get it working somewhat consistently (with the center points). Did nothing for the outer point problem, though.

And yeah, the IQ of this lens is worth it, but having tried 5 copies I can assure everyone there is definitely noticeable sharpness differences in different copies, they aren't all that amazing. The sigma 35 and the 85L wide open are still sharper.

Why not just send it to Sigma to see if there's anything wrong with the lens? If there isn't an issue than you know it's the body. Unless you have severe AF issues with all your other lenses, including Canon ones, I would say it's the lens that's the issue not the body.


Sony Alpha A7III - Sony FE 35mm f/1.8 - Sony FE 90mm f/2.8 Macro
Sony FE 85mm f/1.8 - Canon EF 16-35mm f4L IS -
Canon EOS M5 - Canon EF-M 32mm f/1.4 - Canon EF-M 22mm f/2 - Canon EF 11-22mm f/4-5.6 STM

Blog (external link) | Flickr (external link) | 500px (external link)

  
  LOG IN TO REPLY
John ­ from ­ PA
Cream of the Crop
9,376 posts
Likes: 870
Joined May 2003
Location: Southeast Pennsylvania
     
Aug 25, 2014 13:01 |  #75

Thestructured wrote in post #17115150 (external link)
The thing is, I have tried them all on not one, but THREE bodies. Two 5d mark iii's and a 6d.

If you are faced with using the "adjustable" SIGMA lenses, especially with multiple cameras it is important to understand the technology. The adjustments are made to a lens but takes into account the body used in testing. "Yes" it is a trial and error process but having said that when I purchased a lens, at a retail store having a "show" the Sigma tech adjusted the lens to my 60D in about 10 minutes.

But back to the technology...the adjustments are made solely to the lens to match it to a given body. Bodies differ in dimensional tolerances, as do lenses, hence the need for AFMA. This means that if you adjust a 50mm 1.4 lens in its dock to camera "A", it may or may not focus well if mounted to camera "B." Think of some scenarios and you can work around most instances of multiple cameras. Let's say you have one body (say a 5DIII) that has AFMA and a 60D that doesn't. You adjust the lens to the 60D body then adjust the AFMA on the 5DIII to the lens.

If you have multiple cameras with AFMA, select the camera you might use most, set AFMA to "0", then adjust the lens to that body, then adjust the balance of the bodies using their AFMA to the lens.

As far as those who have experienced differences between center focus point vs. outer focus points I can't say I have encountered that issue. Perhaps some compromise tweaking is needed in the dock.




  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

24,344 views & 0 likes for this thread
Problems with SIgma 50mm 1.4 ART
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is fitactions
676 guests, 298 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.