How sharp is the Pentax 70 - 200 f2.8 wide open on K1?

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Peteo Senior Member • Posts: 1,901
How sharp is the Pentax 70 - 200 f2.8 wide open on K1?

I'm looking at adding a lens to my collection and was thinking of the Rokinon 135mm f2.0 as the reviews are stellar and it also performs exceptional wide open. I grew up with an old Pentax Super Program so manual focusing isn't the end of the world for me.  That being said I'm also considering the Pentax 70 - 200 f2.8 and I'm wondering how that performs wide open on the K1?

I realize they're in different price ranges and one's auto focus vs. manual but I'll be using these for wedding and portrait photography. If people are having great luck with the Pentax wide open I may bite the price difference and purchase it instead.


 Peteo's gear list:Peteo's gear list
Pentax MX-1 Pentax K-5 IIs Pentax K-1 Sigma 10-20mm F4-5.6 EX DC HSM Sigma 50mm F1.4 EX DG HSM +11 more
Pentax K-1
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