I have a lot of 50mm lenses for my Pentax K1-II and f1.4 is my current favorite lens. The lens is smaller and lighter than an f1.2 lens and performs as well or even better than a standard f2 lens, which in turn is much lighter. I mostly use f1.4 - the lens is super sharp and the bokeh is nicer than the much more expensive f1.2
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