Olympus 45mm f1.2: Vignetting

thought wow let's try to see the wrong things of this land so when i reviewed the 40 to 150 2.8 pro i noticed at 2.8 there was a bit of vignetting really slight but there was okay so i thought with this at 1.2 it must have a lot of vignetting nothing i'll show you what i've made nothing

Now, just to clarify, your lens is still F1.2 when it comes to light gathering, so the exposure doesn't change, but because Micro Four Thirds has a two times crop factor, the depth of field is equivalent to an F2.4 on a full frame camera.

the amount of light entering the lens front element and exiting the rear element is not always the same some loss will always occur therefore a great performing lens is often measured by the difference in this light transmission loss and also affects the corner performances operations and sharpness…