any one have experience with sigma 28mm f1.8 for nikon used on 5D mark 2

[holysphinx1@hotmail.com]

hello all i suddenly have a luck to find a used sigma 28 f1.8 lens for nikon for very cheap price
i didnt see it yet but the seller told me the glass is ok but it have marks of use on the body of the lens " seems used severe but i dont care about how it looks from outside i just hope there isnt no optical or mechanical problem "
as i need A " 28mm Lens " i though of buy this cheap and rare one to put it on my 5d mark 2 via adapter " i already have one "
if this lens is good in terms of focus ring and optical performance please tell me cas we do not find that used lenses in my country easy " so i have to run to get it "
thank You

 

[Darren Levine]

i have the canon sigma 28 1.8 and love it. i hope you're able to try it before buying, or have a return policy...

 

[holysphinx1@hotmail.com]

thank You , and i will try it b4 buying
is it useable wide open ?
and how is the focus ring ?