Question about Sigma 28-70mm f/2.8 EX DG for Canon EOS

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Sigma 28-70 EX DG lens does not get a crisp focus on autofocus most of the time. Can improve it with manual slightly better sometimes. I use it on a Canon 1D Mark IIn. By comparison, my L series 100-400 is remarkable. Is there a way for me to calibrate it for my camera? Thanks

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No you will have to send to a sigma for recalibration

Posted on Aug 08, 2009

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Posted on Jan 02, 2017

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I have a Sigma 24-70 2.8 EX DG Autofocus will not work.


Call Sigma. Here is the information. They will be able to help you for sure. To request assistance by phone in the US, their technicians are available from 9AM to 5PM Eastern Standard Time, Monday through Friday. Please call: (631) 585-1144.
Customer Service Department call toll free (800) 896-6858.
You can also fax them 24 hours a day.
Fax: (631) 585-1895 or (631) 585-7661

Jan 25, 2008 | Sigma 24-70mm F3.5-5.6 AF Zoom Lens

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I have an 18 - 200 mm sigma lens. problems are: 1. its lock does not work. the lens slides down to lower zoom magnification one raised to a diagonal position. 2. when fully extended, the thrid tube...


Send it in for repair

Sigma Canada

www.sigmacanada.ca/
SIGMA ART 24-35MM F2 DG HSM LENS. Lens details >> · More photos with this lens >>. SIGMA 24-70MM F2.8 IF EX DG HSM. Lens details >> · More photos ...

Lenses ' Sigma Corporation of America

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Jul 27, 2017 | Sigma AF 28-200 Lens

1 Answer

Bought a Sigma DG 70-300mm 1:4-5.6 autofocus for my Nikon D40. When the lens is attached the settings get locked on MF. Is there anything I need to adjust to fix this problem? Charles


The Sigma 70-300mm f/4-5.6 DG will not autofocus with the D40 since the lens does not feature an internal focusing motor (HSM). The D40 does not have an AF motor in the body and hence it can autofocus only with lenses featuring an integrated motor (eg. Nikon AF-S lenses, Sigma HSM lenses, Tokina DX II series etc). Unfortunately you can use the said lens only in MF mode.

Sep 02, 2010 | Sigma 70-300mm f/4-5.6 DG Lens

1 Answer

Sigma User Manual for 105mm f2.8 Macro


Hi there,

Well you can please follow the link below to get your manual -

http://www.dphotojournal.com/sigma-105mm-f28-ex-dg-macro-reviews-sample-photos/

(click on the manual tab and then click on - Download Sigma 105mm f/2.8 EX DG Macro User Manual (PDF – 67kb), thats it)

Good Luck!!

Thanks for using FixYa!!

Jul 27, 2010 | Sigma Telephoto 105mm f/2.8 EX Macro...

1 Answer

Sigma 24-70 2.8 EX DG AUTOFOCUS PROBLEM


I would send it into sigma. They are in NY,
They are really quick about checking things out and I have neverhad them charge me to look at a lens and tell me whats up. aot of times they will just fix it while it there is it looks like something is worn out from normal use.
its a great lens. Some would say its a slower focus. than the Canon brand and you do get what you pay for but its hard to spend as much on canon lenses as they want. :)

Hope that helps,
Caleb

Jan 25, 2008 | Sigma 24-70mm F3.5-5.6 AF Zoom Lens

1 Answer

135-400mm lens on nikon d40


Unfortunately, this lens is not supported by the D40 due to Nikon's unfortunate decision to leave out the autofocus motor from this camera.  This is why I tell folks not to waste their money on the D40 - access to the many, many, many lenses that Nikon has made over the years, many of which are available used for a substantial savings, is lost on this camera.  The only Nikon lenses that work are AF-S lenses, and some third party lenses that have their own internal motors.  I got a list of Sigma lenses that are compatible with the D40 for you:
The list of compatible Sigma lenses for the Nikon D40 as of the current date is as follows:
  • 10-20mm F4-5.6 EX DC
  • 12-24mm F4.5-5.6
  • 17-35mm F2.8-4 DG
  • 50-500mm F4-6.3 DG
  • APO 50-150mm F2.8 EX DC HSM
  • 70-200mm F2.8 DG MACRO
  • 80-400mm F4.5-5.6
  • 100-300mm F4 DG
  • 120-300mm F2.8 DG
  • 300-800mm F5.6 DG
  • 14mm F2.8 EX
  • 30mm F1.4 EX DC HSM
  • 150mm F2.8 EX DG
  • 180mm F3.5 EX DG
  • 300mm EX DG
  • 500mm EX DG
  • 800mm f5.6 EX DG
from here:  http://www.imaging-resource.com/NEWS/1177682545.html
Sorry for the bad news.  The cheaper thing at this point may be to sell the D40 and get a D80.  I personally have a D70S, but that is no longer made.  

Dec 06, 2007 | Sigma Zoom Tele 135-400mm f/4.5-5.6 APO...

1 Answer

Indoor photography


If you're on a budget, the 50mm f/1.8 II is a great deal, $100ish, f/1.8 is great for low light.

If you have a bit more cash, the 50mm f/1.4 has better build quality (the 1.8 is all plastic) and much better autofocusing (its USM so its fast and quiet, as well as more reliable) and its also slightly sharper.

If you want a zoom, from canon theres the 17-55 f/2.8, which has image stabilizer and USM focusing.
Also, the 24-70mm f/2.8L, which has USM, and since its an L lens, fantastic optical quality. However, it will run you over a thousand most likely.

From sigma, theres several zoom options, the 28-70mm F2.8 EX DG, 24-70mm F2.8 EX DG MACRO, and 24-60mm F2.8 EX DG. All under $800 or so.

Dec 03, 2007 | Canon EOS 400D / Rebel XTi Digital Camera...

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