I want to thank all for the effort to invite me. Some years ago I ran a test to compare the 40mm Zeiss lenses for the SL66. The differences can be viewed at. http://www.rollei-gallery.net/jonathan-ayers/folder-8226.html At the time I was only interested in a worse case flare condition, and only after viewing the transparencies did I notice the change in hues of the sky, clouds, and the deck, unfortunately I had returned the non HFT lens and was unable to determine if the shift in hue would have been noticed in a low flare condition. The film was Agfa RS or RSX 100, both exposures the same Jonathan --- 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