Sigma Lens Question

The question doesn't makes sense as neither implies quality.

DG is a lens coating
DC means its for camera that have cropped sensors.

Neither have any implications of quality.
 
I DONT THINK SO. the ex is the deciding factor, the dc and dg are whether they fit cropped only or full frame
 
The question doesn't makes sense as neither implies quality.

DG is a lens coating
DC means its for camera that have cropped sensors.

Neither have any implications of quality.

Of course it makes sense, looking through Sigma lens section on Jessops website, they show either DC or DG never both. Perfectly reasonable question I think
 
The question doesn't makes sense as neither implies quality.

DG is a lens coating
DC means its for camera that have cropped sensors.

Neither have any implications of quality.

Someone get out of bed the wrong side this morning? The OP clearly asks if there is any difference in quality which doesn't imply that there is a difference. It just asks if the DG/DC is used to indicate a difference in quality of something else.
 
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