09-30-2011, 12:57 PM
Hi everybody!
I'm a new member despite I'm used to attend Photozone to read the great reviews on lenses for many years.
Because I've complaints with one of my lenses sharpness, I've started going more into the issues of lens testing by means of MTF tools. Despite results among test performed on different systems are not easily comparable, I think it's possible to find a correlation between results obtained with different methodologies.
In order for me to try to find out this correlation, it would be desirable to know the ways Photozone did the set up for lens testing in terms of:
- Used Test Charts (ISO 12233, USAF 1951, Custom, etc.)
- Lighting conditions
- Shooting distance
- MTF Software tool (It seems it's IMATEST)
- JPG vs RAW processing
- etc.
If anyone knows something and wants to share its knowledge, its help would really be appreciated!
I'm a new member despite I'm used to attend Photozone to read the great reviews on lenses for many years.
Because I've complaints with one of my lenses sharpness, I've started going more into the issues of lens testing by means of MTF tools. Despite results among test performed on different systems are not easily comparable, I think it's possible to find a correlation between results obtained with different methodologies.
In order for me to try to find out this correlation, it would be desirable to know the ways Photozone did the set up for lens testing in terms of:
- Used Test Charts (ISO 12233, USAF 1951, Custom, etc.)
- Lighting conditions
- Shooting distance
- MTF Software tool (It seems it's IMATEST)
- JPG vs RAW processing
- etc.
If anyone knows something and wants to share its knowledge, its help would really be appreciated!