Jos de Fotograaf wrote:
You're right: the hood is permanently attached. Your suggestion to remove it completely will be my back-up solution if my cutting fails. The front lens is extremely ball shaped, that makes it vulnerable in practical use. My step one will be to cut away from the hood just keeping enough to avoid the lens toughing the table if I put the lens on the table with front lens down. If in that stage I can reach FF coverage down to 12 mm, I am satisfied for the time being.
Could you maybe post some pictures showing the vignetting? Maybe of a grid so that you can quantify the difference you make comparing with in progress photos?
Do you maybe want to try trimming one corner of the petal hood so you can compare with the original and see if it is making a difference in that one corner? Perhaps the lower left because that one is likely to be down no matter whether you are holding the camera and landscape or portrait mode?
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