RiceHigh's Pentax Blog: Ephotozine HD20-40 Review w/ Samples

Wednesday, February 05, 2014

Ephotozine HD20-40 Review w/ Samples

http://www.ephotozine.com/article/hd-pentax-da-20-40mm-f-2-8-4-limited-dc-wr-lens-review-23898

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6x7 · 580 weeks ago

I wonder why it is sharper @ F8 in the corners than in the center?

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Snappertim · 580 weeks ago

Very fair assessment of the lens, great optics and lacking design in the mechanical side, focus not internal or by helicoil so the front element rotates and a round hood on the filter thread is all that can be supplied, the hood is so wide to not catch the image at 20mm its useless at 40mm end, for this lack of design you would expect the zoom action to be internal but it is not, as the lens is only a 2x zoom the sharpness is to be expected, the price is high considering the max aperture and the fact its not fixed throughout the zoom range.
Regards Snappertim