I would like to say personally it is not so much how sharp a lens is; it is more its ability to render tonality and fine detail all the way across the negative. Hence the Rollei list as the Planar and Xenotar's do this supremely. Marvin. --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list