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I obtained this, recently-launched, lens a few days ago.
There are difficulties using it, but only those encountered with other fully manual macro lenses at similar magnifications. (I have several). One of those is that at the highest magnification, and f11 or f16 (nominal), bright sunlight on the subject is needed to prevent the light-starved sensor from jumping around, keeping nothing sharp in the viewfinder.
I have been trying various magnification and aperture combinations but have chosen to present results from the ultimate of f16 and x5 set on the lens. This gives a FOV 3.5mm wide, equivalent to 10:1 on full frame, a little higher than my previous setups (as used: they can do more).
With this combination in particular, the DOF is almost non-existent, a fraction of a millimetre. My ability to get the plane of focus accurately is the major factor and there is some room for tiny improvements in these images but they look OK at the size displayed
The images in these crosseye stereos are uncropped
The subject is an Ascomycete fungus Dasyscyphus bicolor. It gets it named from mostly having an egg yolk yellow middle and a white cup. It varies in the colouring and in whether it has a stalk. This is the first time I have knowingly seen this species which is "widespread".
Olympus EM-1, Laowa 25mm f2.8 Ultra Macro 5x, triple flash, hand-held.
Harold
There are difficulties using it, but only those encountered with other fully manual macro lenses at similar magnifications. (I have several). One of those is that at the highest magnification, and f11 or f16 (nominal), bright sunlight on the subject is needed to prevent the light-starved sensor from jumping around, keeping nothing sharp in the viewfinder.
I have been trying various magnification and aperture combinations but have chosen to present results from the ultimate of f16 and x5 set on the lens. This gives a FOV 3.5mm wide, equivalent to 10:1 on full frame, a little higher than my previous setups (as used: they can do more).
With this combination in particular, the DOF is almost non-existent, a fraction of a millimetre. My ability to get the plane of focus accurately is the major factor and there is some room for tiny improvements in these images but they look OK at the size displayed
The images in these crosseye stereos are uncropped
The subject is an Ascomycete fungus Dasyscyphus bicolor. It gets it named from mostly having an egg yolk yellow middle and a white cup. It varies in the colouring and in whether it has a stalk. This is the first time I have knowingly seen this species which is "widespread".
Olympus EM-1, Laowa 25mm f2.8 Ultra Macro 5x, triple flash, hand-held.
Harold
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