Canon 40D Sigma Service Notice

  • Thread starter Thread starter whiteflyer
  • Start date Start date
W

whiteflyer

Guest
Sigma Service Notice

"Notice to Canon 40D owners using Sigma’s APO 120-400mm F4.5-5.6 DG OS HSM or APO 150-500mm F5-6.3 DG OS HSM for Canon fitting.

When the Canon 40D digital SLR is in AI Servo AF mode, and the APO 120-400mm F4.5-5.6 DG OS HSM for Canon or APO 150-500mm F5-6.3 DG OS HSM for Canon lenses are attached to the camera with the OS function switched ON, the number of continuous frames per second will decrease.

To overcome this, we will start supplying a free-upgrade service to our customers from today.

We deeply apologize for any inconvenience this may have caused to our customers.

List of lenses requiring update for 40D camera

APO 120-400mm F4.5-5.6 DG OS HSM for Canon Serial Number lower than 1011001
APO 150-500mm F5-6.3 DG OS HSM for Canon Serial Number lower than 1007001

Except above numbers, their firmware has already been updated.

For further information, please contact your nearest authorized Sigma Service Station.
http://www.sigma-photo.co.jp/english/network/index.htm
 
good to know, shame i havent got one of them. but here is a helpful bump
 
this is one of the things that has put me off 3rd party lenses - shame - sigma make good glass - they just need good firmware as well...
 
sportysnaps said:
this is one of the things that has put me off 3rd party lenses - shame - sigma make good glass - they just need good firmware as well...
Click to expand...

Yes. But at least they acknowledge the problem and fix it for free. :thumbs:
 
sportysnaps said:
this is one of the things that has put me off 3rd party lenses - shame - sigma make good glass - they just need good firmware as well...
Click to expand...
But it's not really their fault, is it? I mean, the camera manufacturers don't publish specifications, so Sigma have to reverse engineer the stuff to make it work in the first place; and then when a camera manufacturer brings out something new or does something differently which Sigma couldn't possibly have anticipated, they need to do a recall.

Example: Early copies of the Sigma 120-300mm f/2.8 don't work properly on a Nikon D3 when it's in Auto-DX-crop mode; the camera thinks the lens is a DX, when it isn't, and it crops the image down to 5 Mp. Obviously there's an easy workaround, but the point is that when Sigma brought out the lens they couldn't have known that Nikon had anything like Auto-DX-crop in the pipeline. (It wouldn't surprise me if Nikon had done that deliberately.)
 
StewartR said:
But it's not really their fault, is it? I mean, the camera manufacturers don't publish specifications, so Sigma have to reverse engineer the stuff to make it work in the first place; and then when a camera manufacturer brings out something new or does something differently which Sigma couldn't possibly have anticipated, they need to do a recall.

Example: Early copies of the Sigma 120-300mm f/2.8 don't work properly on a Nikon D3 when it's in Auto-DX-crop mode; the camera thinks the lens is a DX, when it isn't, and it crops the image down to 5 Mp. Obviously there's an easy workaround, but the point is that when Sigma brought out the lens they couldn't have known that Nikon had anything like Auto-DX-crop in the pipeline. (It wouldn't surprise me if Nikon had done that deliberately.)
Click to expand...
My friend has a sigma 300 prime that does the same, goes to DX mode but you can stop it in camera.
 
You must log in or register to reply here.
Back
Top