10-07-2012, 09:50 AM
Comparing your two resolution tests (Sony 18-55mm E-mount) for 14 and 24 Mpix sensors the results are really weired. Especially for the edge performance.
At 18mm
NEX7 showing ~1300 compared to ~1900 on NEX5
At 24mm
NEX7 showing ~1800 compared to ~2000 on NEX5
How can the NEX7 sensor MTF values can drop so deep at the edges? So miserable and even worse than on old NEX5 sensor? Optically this is not explainable but bad lens sample on NEX7 during test.
Anybody has an explanation?
Quick link for the two tests:
http://www.opticallimits.com/sony-alpha-aps-c-lens-tests/543-sony1855f3556nex?start=1
http://www.opticallimits.com/sony_nex/724-sony1855f3556oss?start=1
What can I expect using this lens on NEX-5N?
At 18mm
NEX7 showing ~1300 compared to ~1900 on NEX5
At 24mm
NEX7 showing ~1800 compared to ~2000 on NEX5
How can the NEX7 sensor MTF values can drop so deep at the edges? So miserable and even worse than on old NEX5 sensor? Optically this is not explainable but bad lens sample on NEX7 during test.
Anybody has an explanation?
Quick link for the two tests:
http://www.opticallimits.com/sony-alpha-aps-c-lens-tests/543-sony1855f3556nex?start=1
http://www.opticallimits.com/sony_nex/724-sony1855f3556oss?start=1
What can I expect using this lens on NEX-5N?