After got my Canon 50mm 1.8, just today have time do some tests about the sharpness
of this lens.
Here the setting :
-The distance btw cam and object around 1.5 metre
- quality setting in cam : jpg super fine
- center point focus
- crop by ACDsee ver 7 ( centre point )
- save with best quality ( acdsee )
- no tripot but the cam put on table with self timer setting (cam keep still no movements)
- miss some description ?
The conclusion :
- Image more crisp and sharp at ISO 200 up at 1.8
- image more crisp at ISO 100 & 400 at 3.2 but blur at ISO200 ??? (2 times testing 1st more obvious)
- Images more crisp and sharp at ISO100 3.2 up ( but no other ISO testing)
I dont know does your lens like that also or my i have a badcopy ?
Any comments ?
( Forgive my bad English )
Cheers,
Caofei
First test at 1.8 (various ISO setting)
Resize full images
ISO 100 at 1.8 (crop from centre of above image)
ISO 200 at 1.8 (crop from centre of above image)
ISO 400 at 1.8 (crop from centre of above image)
of this lens.
Here the setting :
-The distance btw cam and object around 1.5 metre
- quality setting in cam : jpg super fine
- center point focus
- crop by ACDsee ver 7 ( centre point )
- save with best quality ( acdsee )
- no tripot but the cam put on table with self timer setting (cam keep still no movements)
- miss some description ?
The conclusion :
- Image more crisp and sharp at ISO 200 up at 1.8
- image more crisp at ISO 100 & 400 at 3.2 but blur at ISO200 ??? (2 times testing 1st more obvious)
- Images more crisp and sharp at ISO100 3.2 up ( but no other ISO testing)
I dont know does your lens like that also or my i have a badcopy ?
Any comments ?
( Forgive my bad English )
Cheers,
Caofei
First test at 1.8 (various ISO setting)
Resize full images
ISO 100 at 1.8 (crop from centre of above image)
ISO 200 at 1.8 (crop from centre of above image)
ISO 400 at 1.8 (crop from centre of above image)