Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies. Read More.
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 Jan 2013 (Tuesday) 10:44
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

New Sigma 30mm f1.4 Art

 
DreDaze
happy with myself for not saying anything stupid
Avatar
17,798 posts
Gallery: 19 photos
Likes: 1561
Joined Mar 2006
Location: S.F. Bay Area
     
Jan 29, 2013 10:44 |  #1

wonder if it'll change, or if it's just to be compatible with the USB dock

http://www.sigmaphoto.​com/news/sigma-30mm-f14-dc-hsm (external link)

looks like they at least added another aperture blade, and made the MFD a lot closer...1:6.8


Andre or Dre
gear list
Instagram (external link)
flickr (external link)
my 366 for 2016 (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
jrbdmb
Goldmember
Avatar
1,290 posts
Likes: 9
Joined May 2011
     
Jan 29, 2013 11:07 |  #2

The press release shows it is compatible with the upcoming USB dock.

Now I know why I got such a great deal on the "old" 30mm 1.4 last month ... closeout price. :) It will be interesting to see if the new lens offers any real optical benefits. The one thing I noticed so far is that the new lens has nine rounded blades vs. 8 non-rounded in the old model.


Tools: 70D, 10-22, Tamron 24-70 VC, 70-300L, 135 f2L

  
  LOG IN TO REPLY
vapore0n
Member
199 posts
Gallery: 3 photos
Likes: 14
Joined Feb 2011
     
Jan 29, 2013 13:08 |  #3

edit: and nevermind

This is a APS-C lense so its for crops.

Regardless, I might pick up the 35mm just because I plan on upgrading to FF one day




  
  LOG IN TO REPLY
Invertalon
Cream of the Crop
Avatar
6,494 posts
Likes: 19
Joined Jun 2009
Location: Cleveland, OH
     
Jan 29, 2013 13:10 |  #4

One is for "crop" sensor cameras, the other for FF. ^

You only have one choice if you shoot full-frame... Two if you shoot crop.


-Steve
Facebook (external link)
Flickr (external link)

  
  LOG IN TO REPLY
FEChariot
Goldmember
Avatar
4,414 posts
Gallery: 13 photos
Likes: 336
Joined Sep 2011
     
Jan 29, 2013 13:16 as a reply to  @ Invertalon's post |  #5

Darn it. I was realy hoping the next art lens would be 50mm. The current 30/1.4 IMO has much less flaws than the current 50/1.4 and they already have the 35/1.4 art. Not the priority order I would have choosen for the next art lens.

I would think the price on this would need to be significantly lower than the 35/1.4 art. I mean why would anyone pay the same amount as the 35/1.4 for a lens that couldn't be used on full frame.


Canon 7D/350D, Σ17-50/2.8 OS, 18-55IS, 24-105/4 L IS, Σ30/1.4 EX, 50/1.8, C50/1.4, 55-250IS, 60/2.8, 70-200/4 L IS, 85/1.8, 100/2.8 IS L, 135/2 L 580EX II, 430EX II * 2, 270EX II.

  
  LOG IN TO REPLY
pulsar123
Goldmember
2,081 posts
Gallery: 35 photos
Best ofs: 1
Likes: 312
Joined Apr 2010
Location: Canada
     
Jan 29, 2013 13:38 |  #6

It looks like it is a completely new design - which is exciting: the old one had 7 Elements in 7 Groups, the new one has 8 elements in 9 groups (I just don't get how number of groups can be larger than the number of elements? Probably a typo - it should be the other way around). In the new one "Optimized power distribution minimizes field curvature thereby preventing a loss of image quality at the edges of photographs." I am excited if it's indeed the case - the original model had terrible resolution at the edge, which was the main reason I never considered it. Just look at their MTF chart:

http://www.sigmaphoto.​com/shop/30mm-f14-ex-dc-hsm-sigma (external link)

(for the old model): the green lines (MTF at 30 lp/mm) go to the dismal 0.1 contrast level at the edge, with the barely acceptable being 0.2, and good being 0.5.

So let's hope the new lens is much better, on par with their new 35mm lens, with an affordable price.

I also noticed they announced three more art lenses today (all three are for mirrorless cameras): 30mm f2.8, 19mm f2.8, 60mm f2.8.


6D, Tamron 24-70 f2.8 VC, 135L, 70-200 f4L, Laowa 15mm 1:1 macro, 50mm f1.8 STM, Samyang 8mm fisheye, home studio

  
  LOG IN TO REPLY
pulsar123
Goldmember
2,081 posts
Gallery: 35 photos
Best ofs: 1
Likes: 312
Joined Apr 2010
Location: Canada
     
Jan 29, 2013 13:47 |  #7

Yahoo - I found the new 30mm f1.4 Art lens MTF - and it is dramatically better than the old model:

http://www.sigma-global.com …uct/art/a_30_14​/data.html (external link)

Just compare these two:

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO
IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO


The resolution at the center is comparable, but I see dramatic improvement at the edge, both wide open (contrast increases from 0.1 to 0.4, which is at the decent level), and closed down (goes from 0.4 to 0.7 - that is, from decent to superb).

For comparison, here is the MTF for their new 35mm f1.4 Art lens (it's FF):

IMAGE: http://sigma-global.com/en/lenses/cas/product/art/a_35_14/images/data/mtf.gif

So new 30mm is not exactly as good as Sigma's new 35mm, but it is pretty close (compare only the common frame position interval: x from 0 to ~14mm):

I want this lens!

6D, Tamron 24-70 f2.8 VC, 135L, 70-200 f4L, Laowa 15mm 1:1 macro, 50mm f1.8 STM, Samyang 8mm fisheye, home studio

  
  LOG IN TO REPLY
dnauer
Senior Member
Avatar
523 posts
Gallery: 2 photos
Likes: 24
Joined Nov 2009
Location: Colorado
     
Jan 29, 2013 14:18 |  #8

I wish I had realized how bad the original 30 f1.4 was all these years. I shouldn't have enjoyed it as much as I do . . .


Dave
70D; EF 24-105 f4L IS; EF 70-300 f4-5.6L IS; EF 200 f2.8L II; EF 85 f1.8; EF-S 24 f2.8 STM; Σ 30 f1.4; Σ 10-20 f4-f5.6; Kenko Pro300 DGX 1.4x

  
  LOG IN TO REPLY
Nightdiver13
Unabashed nerd!
Avatar
2,272 posts
Likes: 38
Joined May 2010
Location: Bigfoot Country
     
Jan 29, 2013 14:25 |  #9

dnauer wrote in post #15548723 (external link)
I wish I had realized how bad the original 30 f1.4 was all these years. I shouldn't have enjoyed it as much as I do . . .

It's never too late to stop enjoying something.


Neil

  
  LOG IN TO REPLY
pulsar123
Goldmember
2,081 posts
Gallery: 35 photos
Best ofs: 1
Likes: 312
Joined Apr 2010
Location: Canada
     
Jan 29, 2013 14:26 |  #10

"Enjoying" and "producing professional quality photos" are not quite the same thing...


6D, Tamron 24-70 f2.8 VC, 135L, 70-200 f4L, Laowa 15mm 1:1 macro, 50mm f1.8 STM, Samyang 8mm fisheye, home studio

  
  LOG IN TO REPLY
dnauer
Senior Member
Avatar
523 posts
Gallery: 2 photos
Likes: 24
Joined Nov 2009
Location: Colorado
     
Jan 29, 2013 14:58 |  #11

pulsar123 wrote in post #15548749 (external link)
"Enjoying" and "producing professional quality photos" are not quite the same thing...

So the current Sigma 30 f1.4 cannot produce "professional quality photos"? I've seen some posted by professional photographers in both the lens sample section and in the "photo sharing" section that were incredible. I've taken some knock out photos with this lens personally that have been used in calendars and in magazines. This analysis seems pretty harsh. But you probably are more knowledgeable on this matter.


Dave
70D; EF 24-105 f4L IS; EF 70-300 f4-5.6L IS; EF 200 f2.8L II; EF 85 f1.8; EF-S 24 f2.8 STM; Σ 30 f1.4; Σ 10-20 f4-f5.6; Kenko Pro300 DGX 1.4x

  
  LOG IN TO REPLY
pulsar123
Goldmember
2,081 posts
Gallery: 35 photos
Best ofs: 1
Likes: 312
Joined Apr 2010
Location: Canada
     
Jan 29, 2013 15:02 |  #12

Of course you can produce professional quality photos with the old 30mm, but the poor resolution at the edge severely limits your choices: e.g., never put the focus point in the outer 1/3 of the frame (this limits your compositional choices for portraits), avoid taking tight group portraits - because even closed down the edge resolution is not great; don't use for architecture/landscape​/abstract, where good center to edge resolution is very important; and so on.


Here is page with lots of details about the new lens:

http://sigma-global.com …art/a_30_14/fea​tures.html (external link)

And you can see that the new lens has a completely new optical design:

IMAGE: http://www.photosolution.co.uk/images/30mm_cons.gif
IMAGE: http://sigma-global.com/en/lenses/cas/product/art/a_30_14/images/specifications/construction_thumb.gif

6D, Tamron 24-70 f2.8 VC, 135L, 70-200 f4L, Laowa 15mm 1:1 macro, 50mm f1.8 STM, Samyang 8mm fisheye, home studio

  
  LOG IN TO REPLY
Sirrith
Cream of the Crop
10,545 posts
Gallery: 50 photos
Best ofs: 1
Likes: 33
Joined Nov 2010
Location: Hong Kong
     
Jan 29, 2013 18:22 |  #13

pulsar123 wrote in post #15548565 (external link)
the new one has 8 elements in 9 groups (I just don't get how number of groups can be larger than the number of elements? Probably a typo - it should be the other way around).

The 9th group is Sigma's magic pixie dust, not an element per se. :)

What does seem weird looking at the 2 lens diagrams posted above this reply, is that they seem to have left out all the fancy glass in the new one, with just 1 aspherical element, no ELD or SLD.


-Tom
Flickr (external link)
F-Stop Guru review | RRS BH-40 review

  
  LOG IN TO REPLY
pulsar123
Goldmember
2,081 posts
Gallery: 35 photos
Best ofs: 1
Likes: 312
Joined Apr 2010
Location: Canada
     
Jan 29, 2013 18:34 |  #14

I think that diagram simply doesn't show any special glass. But you may be right - they might have opted for 2 more cheaper glass elements, as it produced better IQ.

The new lens has a full-time mf override - was it the case for the original model as well?


6D, Tamron 24-70 f2.8 VC, 135L, 70-200 f4L, Laowa 15mm 1:1 macro, 50mm f1.8 STM, Samyang 8mm fisheye, home studio

  
  LOG IN TO REPLY
Sirrith
Cream of the Crop
10,545 posts
Gallery: 50 photos
Best ofs: 1
Likes: 33
Joined Nov 2010
Location: Hong Kong
     
Jan 29, 2013 18:36 |  #15

pulsar123 wrote in post #15549754 (external link)
The new lens has a full-time mf override - was it the case for the original model as well?

The original also had FTM and proper HSM, none of that micro HSM nonsense.


-Tom
Flickr (external link)
F-Stop Guru review | RRS BH-40 review

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

73,542 views & 0 likes for this thread
New Sigma 30mm f1.4 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?
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 2.0forum software
version 2.0 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is Lausti
604 guests, 255 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017

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.