Optically decentred s90

Started Oct 16, 2009 | Discussions thread
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dbm305 Senior Member • Posts: 1,753
Optically decentred s90

I just got my s90 from Adorama today; very excited.

Less so when I found that between about 30-40mm equiv focal lengths the right hand side is significantly blurrier than the left.

I've asked Adorama to exchange it. Hopefully this is unusual.

Here are 100% crops from one of the test images taken on heavy tripod using bubble level to ensure parallel. Processed in DPP.

lower left but not corner (worse than centre by far, but not terrible)

lower right but not corner (unacceptable, no?)

Whole image for context.

 dbm305's gear list:dbm305's gear list
Sony RX100 Canon MP-E 65mm f/2.5 1-5x Macro Voigtlander 75mm F1.8 Heliar Classic Rokinon 14mm F2.8 IF ED MC Sony FE 55mm F1.8 +16 more
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