xunjas
Senior Member
tks for the tip. cause i compare to my sigma 18-200 . both till 85mm range still ok . only till sigma 200mm range @ f6.3 cmi. different range cannot compare. maybe thinkin of sellin off 1785 IS. warranty still unfilled.or shld i sell my sigma then get 70-200 F4 IS? there i think ard 1.5k
70-200mm f/4IS is a good lens in terms of optics and IS is useful for panning. Low light situation need to use flash. iso 3200 and f/4 is can obtain shutter of 1/4 under low light situation is not useful..