by Jon

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Yes, you can buy non-stabilized optics for a Pentax. In fact, very few stabilized lenses are available, because all Pentax digital bodies since the 2006 model K100D (excluding K110D) have provided the Shake Reduction sensor stabilization, so there's no need to have stabilization in lenses. Yes, image quality is comparable to optic stabilization since it is ...


Agreeing with the answer in the thread you've linked, I don't believe there are hard limits for this. One day, one might invent a magical design or optical elements that would achieve unimaginable, super-large apertures. But, as mentioned in that thread, there are so many soft limitations. Since the size of the back element, and the distance between the ...

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