Register · Search · Software · Join Upload & Sell · Hosting

Moderated by: Fred Miranda
Username   Password

FM Forum Rules
FM Forums | Alternative Gear & Lenses | Join Upload & Sell   
Search Used
1  
2
   end
  

Archive 2008 · sigma 50mm 1.4
  
 
ulrikft
Offline
Upload & Sell: Off
p.2 #1 · sigma 50mm 1.4


I have bought (and therefore tested) several 30 1.4 for different friends of mine, another very good performer (better than far more epxensive lenses) for crop cameras, if you take the time to test a few copies..




Nov 25, 2008 at 09:11 AM
dcmiller
Offline
Dedicated FM
Upload & Sell: On
p.2 #2 · sigma 50mm 1.4


Has anyone sent a lens to Sigma for focus and NOT been satisfied with the repair? I wouldn't be willing to adjust a Canon camera to work with a Sigma lens, as some people seem to do.

Anyway, AF is a luxury here in the Alt forum.

Nov 25, 2008 at 01:40 PM
dcmiller
Offline
Dedicated FM
Upload & Sell: On
p.2 #3 · sigma 50mm 1.4


The only data I've seen is that rental companies summary of repairs that show Sigmas are far more likely to break than Canon. But I've had two Sigmas over the years and no problems. I feel that a lens is worth purchasing from Sigma if it has a unique feature set or is a very good value compared to Canon.
Looking at the MTF of the Sigma 50, the Canon 50 1.2 doesn't do that well below f2. Half the price, and very little can be shot at 1.2. Clearly the Canon has focus issues too.


Nov 25, 2008 at 01:49 PM
mawz
Offline
Dedicated FM
Upload & Sell: Off
p.2 #4 · sigma 50mm 1.4


dcmiller wrote:
The only data I've seen is that rental companies summary of repairs that show Sigmas are far more likely to break than Canon. But I've had two Sigmas over the years and no problems. I feel that a lens is worth purchasing from Sigma if it has a unique feature set or is a very good value compared to Canon.
Looking at the MTF of the Sigma 50, the Canon 50 1.2 doesn't do that well below f2. Half the price, and very little can be shot at 1.2. Clearly the Canon has focus issues too.


Note that if you read that particular rant from the rental company, they concede that the vast majority of their Sigma issues were with the two new OS Telezooms (the 120-400 and 150-500) which are brand new designs using technology (OS) that Sigma's very new to.

Nov 25, 2008 at 02:05 PM
 



thrice
Offline
Dedicated FM
Upload & Sell: Off
p.2 #5 · sigma 50mm 1.4


dcmiller wrote:
Has anyone sent a lens to Sigma for focus and NOT been satisfied with the repair? I wouldn't be willing to adjust a Canon camera to work with a Sigma lens, as some people seem to do.

Anyway, AF is a luxury here in the Alt forum.


YES I sent a lens for full calibration, they sent it back saying it checked fine and I put it on my 5D and bam still back-focusing, I tried a second copy and saw the same. I put my camera in the hands of the importer and he said he saw the same... so he blamed my camera body (which is perfect with all my alt glass and my canon glass) then I contacted Sigma direct and they blamed my camera body as well so I don't buy Sigma any more.

Nov 25, 2008 at 02:10 PM
ovredal73
Offline
Upload & Sell: Off
p.2 #6 · sigma 50mm 1.4


thrice wrote:
dcmiller wrote:
Has anyone sent a lens to Sigma for focus and NOT been satisfied with the repair? I wouldn't be willing to adjust a Canon camera to work with a Sigma lens, as some people seem to do.

Anyway, AF is a luxury here in the Alt forum.


YES I sent a lens for full calibration, they sent it back saying it checked fine and I put it on my 5D and bam still back-focusing, I tried a second copy and saw the same. I put my camera in the hands of the importer and he said he saw the same... so he blamed my camera body (which is perfect with all my alt glass and my canon glass) then I contacted Sigma direct and they blamed my camera body as well so I don't buy Sigma any more.


I blame my camera body. After canon tweaked my camera (without any of my lenses!) it suddenly front focused. I made canon adjust the camera to their in house ref lens (whatever that is). Suddenly my 85L stopped back focusing as well.


Nov 25, 2008 at 02:56 PM
e_dawg
Offline
Upload & Sell: On
p.2 #7 · sigma 50mm 1.4


ovredal73 wrote:
I made canon adjust the camera to their in house ref lens (whatever that is).


Believe it or not, it's actually a Sigma

Nov 25, 2008 at 07:52 PM
1  
2
   end




FM Forums | Alternative Gear & Lenses | Join Upload & Sell

1  
2
   end
    
 

You are not logged in. Login or Register

  Username   Password  
Lost your password?