09-23-2011, 08:17 PM
(This post was last modified: 09-23-2011, 08:31 PM by Brightcolours.)
[quote name='Sathe Wild' timestamp='1316806937' post='11796']
Take off the 1/2 light lost to mirror, and Nex-7 might even score higher than D7000/K-5
[/quote]
You only lose 1/3rd of a stop.
Concerning the data (and scores)... unaltered RAW always shows a curve. The A77 results show a straight like, except at the highest ISO settings. This means we do not see the sensor performance, but rather doctored data where noise has been filtered (at every ISO, probably except base ISO).
The D7000 curve shows relatively low doctoring of the data (however a slight loss of detail at higher ISOs does point to some doctoring), the K5 heavy doctoring only from a certain value.
Not sure why DXO only sometimes "detects" this. But they do not take it into account with their scoring. So, don't place too much importance in the DXO sensor scores, especially from the A77.
Anyway the camera seems to perform fine... no need to look at what DXO says it does.
Take off the 1/2 light lost to mirror, and Nex-7 might even score higher than D7000/K-5
[/quote]
You only lose 1/3rd of a stop.
Concerning the data (and scores)... unaltered RAW always shows a curve. The A77 results show a straight like, except at the highest ISO settings. This means we do not see the sensor performance, but rather doctored data where noise has been filtered (at every ISO, probably except base ISO).
The D7000 curve shows relatively low doctoring of the data (however a slight loss of detail at higher ISOs does point to some doctoring), the K5 heavy doctoring only from a certain value.
Not sure why DXO only sometimes "detects" this. But they do not take it into account with their scoring. So, don't place too much importance in the DXO sensor scores, especially from the A77.
Anyway the camera seems to perform fine... no need to look at what DXO says it does.