ajramirez
Hall of Famer
- Location
- Caguas, Puerto Rico
- Name
- Antonio
As happy as I have generally been with my 45mm Lumix, I recently became concerned that maybe my lens was not as sharp as it should be. I decided to do a quick test of the lens. My findings as as follows:
1. The lens is razor sharp at the center, even wide open.
2. The lens is not very sharp at the corners, wide open.
3. Sharpness at the corners improves by stopping down and becomes very sharp at 7.1 and smaller.
The following crops are at 100%. Camera was tripod mounted and carefully placed so that it was parallel to the document photographed. All shots taken at iso 200 with a Panasonic G2 and converted from RAW using ACR and Photoshop CS5. No added sharpening.
2.8 center
7.1 center
2.8 corner
4.0 corner
5.6 corner
7.1 corner
8.0 corner
Regards,
Antonio
1. The lens is razor sharp at the center, even wide open.
2. The lens is not very sharp at the corners, wide open.
3. Sharpness at the corners improves by stopping down and becomes very sharp at 7.1 and smaller.
The following crops are at 100%. Camera was tripod mounted and carefully placed so that it was parallel to the document photographed. All shots taken at iso 200 with a Panasonic G2 and converted from RAW using ACR and Photoshop CS5. No added sharpening.
2.8 center
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7.1 center
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2.8 corner
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4.0 corner
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5.6 corner
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7.1 corner
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8.0 corner
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Regards,
Antonio