hello all! I've been thinking of searching out for a Vivitar series 1 , 90/2.5 macro, for my LX. I notice there is also a different 90/2.8 macro and a later 105/2.5 macro, all labelled Vivitar. Can anyone tell me the difference? Does anyone have one of these to sell anyways?
And, how does it compare to the Tokina ATX macro version, or the Tamron 90/2.5 SP? I'm thinking of these 3rd party over the Asahi Pentax 100/4 macro as these are a stop faster and also of good repute, which I figure will make it worthwhile to double as the potrait lens.
