Lens Turbo I vs Lens Turbo II - Corner Sharpness Test

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John Mu
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Lens Turbo I vs Lens Turbo II - Corner Sharpness Test
3 months ago

I received my Lens Turbo II last night. I was so eager to do a corner sharpness test.

There are so many variables in these tests. Please take these shots with a grain of salt...

I'm posting all four corners of a bookcase shot. All shot at F1.8, F4, F8, F16.

Setup:

$5 tripod, I didn't refocus after each shot. I was using a remote to fire the shutter. These are all OOC jpeg crops.

Lens Turbo I Test - NEX-6, Fujinon EBC 55mm/1.8, M42 to MD

Lens Turbo II Test - NEX-6, Fujinon EBC 55mm/1.8, M42 to FD

observations:

the extreme corners improved but are only apparent on the wide-open f1.8 and f2.8 shots.  unfortunately I didnt post the f2.8 shots.

Lens Turbo

Big Picture

Lower Left - LT1 (Top) , LT2 (Bottom)

Lower Right - LT1 (Top) , LT2 (Bottom)

Upper Left - LT1 (Top) , LT2 (Bottom)

Upper Right - LT1 (Top) , LT2 (Bottom)

Sony Alpha NEX-6
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