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Author Message   Ismaelg Tinkerer Username: Ismaelg Post Number: 41 Registered: 11-2009 Rating: N/A Votes: 0 Posted on Tuesday, February 09, 2010 - 08:31 pm:    Hello Finn, That is the Arecibo lighthouse. This is the Rincon lighthouse: http://images39.fotki.com/v1349/photos/4/1233394/7438541/IMGP3315b-vi.jpg http://images41.fotki.com/v195/photos/4/1233394/7438541/IMGP3330b-vi.jpg and this is Cabo Rojo's http://www.pentaxforums.com/forums/post-your-photos/69687-cabo-rojo-lighthouse.h tml and Fajardo's http://images51.fotki.com/v748/photos/1/1233394/5524754/DSCF5476-vi.jpg So far in m42 I have a SuperTakumar 55mm f1.8, a Helios 44-2 which is 58mm f2 and this 200mm f3.3 The SuperTak needs adjustment for infinite focus. I'll do that soon. The Helios is beaten up cosmetically but usable. I am now considering a screwmount adapter to use these in my (gasp!) DSLR. Thanks, Ismael