Did a comparison today. Not a scientific test but random shots. Surprisingly I found that how good my 50-200mm is. All the images are taken within 10 minutes, so I assume that they were taken in the same condition. All images were shoot at wide open and have been 100% cropped. I only take center part of images. Both lenses didn’t use the lens hood when testing.
Here is my conclusion:
- At 50mm, image quality is almost identical for both lenses at wide open (F2.8 vs. F4.0).
- At 135mm, DA 50-200/F4.5 has much better IQ than the DA* at 135mm/F2.8. DA* shows flare at the long end at wide open. Maybe I need a lens hood.
#1. DA 50-200mm at 50mm, F4.0
#2. DA* 50-135mm at 50mm, F2.8
#3. DA* 50-135mm at 135mm, F2.8
#4. DA 50-200mm at 138mm, F4.5
#5. DA 50-200mm at 138mm, F4.5
#6. DA* 50-135mm at 135mm, F2.8