Both my Rollei and Yashica are very sharp from about 5.6 to 11. That is if I do my part. I seem to have the devil's own time getting my Yashica focused really well, but when I do it gives some very nice images. My Rollei, which has an upgraded focus screen, is a little bit easier to get focused correctly, but I still struggle sometimes. For me, these TLRs are slower to work with because of my eyes.