優點:
light weight but with fixed 2.8 aperature, not expensive, only 2,800 ( hood inclusive ) with
five years warrantly, made in japan.
quite sharp image, under normal condition even in 2.8 , colour is natural , expected
matched with Pentax / Sony brand body, ( both of them with body anti-shake function )
缺點:
focusing with little bit noisy, but even occured in original brand junior models.
評價:
It is quite satisfication with these kinds not original brand lens such as Sigma, Tamron,
Tokina, they give us more chance to use them to get good pictures with limied money.