DG & Non Dg???

[mtndew]

I was just looking at some lens by Sigma and was interested in 105 ex (dg). Was wondering whats the difference between the DG and Non DG lens seeing the prices are the same over at BH? and if theres a noticable difference?

[ILoutdoorcpl]

According to B&H the DG models are optimized for digital SLRs and the DC models are for digital only. Hope that helps some.

[Mogwyth]

DC lens are specificaled designed for the smaller digital sensors, and some are for the four thirds system only.

DG are suitable for all cameras and supposedly have improved optics for digital, without effecting the film performance, I believe all the standard lens will eventualy be replaced by DG lenses