Oh yes - she is truly one tricky lens when you use it at wide open aperture - mama mia. Even when you think you got it - be prepared that you might have missed the exact focus ever so slightly... As other photographers already wrote in reviews: focusing is outmost tricky at that ƒ 1.4 aperture.
On top, the relative sharpness is in essence only valid in the narro area of the center in the image) but looses quickly definition once your subject is placed somewhere towards the borders. Especially when you get closer (as the overall sharpness drops a notch further). But the character is there.
I will test portrait at slightly stoped down aperture such as ƒ2 in order to see how the lens renders portraits in general. Then I'll test how the lens render with motives further away (at ƒ1.4)
Minimal vinjetting
I am astonished of the minimal vinjetting - which is barely visible even at wide open aperture.
Now, who needs such a lens ?
You can simply accomplish this kind of so-so sharpness on a fullframe camera, with any 50mm f 1.4 or ƒ 1.2 lens and with much easier effort, I may add. So, no - you don't need the Mitakon Speedmaster 65mm f 1.4
It is mainly meant as an unusual bright alternative, as well highly affordable lens for the Medium format Fujifilm GFX system. That's it. I am sure many will rather choose the Fujifilm GF 55mm f 1.7 lens instead (with autofocus and excellent sharpness). But for a much higher price, I may add.
So - I will have to practice and learn. This is not an easy lens to deal with for portraits. But when you nail it, then it renders beautiful images and portraits - no doubt.
The few images i have shown this far, are just first impressions with this lens.
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