Hi Duc! As you probably know, by now, the 80-200/f4 Elmar is one of the "unsung hero's of the Leica Line-up. The only problem is when you want to us an ELPRO close up lens with it. Leica don't make one in 60mm size. However, the Nikon 5T CU lens comes in 62mm and a B&W 60~62mm step up ring works so well, the lens hood still extends/closes over it! These two-element CU lenses work startlingly well with the 80~200/4. I'm told that the 5T will give an almost seamless range from the end of the lenses normal focus to almost 1:1. I couldn't find a 5T at a good price, but managed to get a used, but perfect condition 6T from a Victoria shop for $20. Paid the same for the step up ring (new) as it was a cancelled order. Try it... I think you'll like it! Cheers! ------------- David Young - Photographer Logan Lake, BC, Canada Wildlife & Sports: www.furnfeather.net Personal pages: www.main.furnfeather.net A micro-lender through KIVA.org. ------ Unsubscribe or change to/from Digest Mode at: http://www.lrflex.furnfeather.net/ Archives are at: //www.freelists.org/archives/leicareflex/