On 02/09/2005 at 7:20 PM Peter M. C. Choy wrote: >David and Doug, > >Thanks for your helpful replies. Yes, I am an >LHSA member (and the upcoming meeting will be >in my home town). I will definitely root through my >Viewfinder collection for the article you >refer to. > >Thanks to your guidance, I'll happily abandon my >hope of finding the elusive 14182, as well as >the scarce and pricey 2x extender for the SL, >and concentrate on finding a set of plain vanilla >rings. Does it matter whether I get the 14159 for SL >the more readily available 14139? I gather (?) >from my little handbook of accessories that the >former contains a linkage for semi-auto preset >diaphragm operation and the latter does not -- >I guess this is a limitation on versatility, but >am I correct in thinking it makes no difference >for using the 400mm Telyt mounted on the SL2? > >rgds >Peter.\ Wow! I didn't know there was a set of tubes for the SL/SL2 models that had= diaphram control linkages of any kind. However, even if they did, it would only make a difference with lenses that= have auto-diaphrams.... and that does not include the Telyt! So, you are= right... no difference. My understanding was that catalogue number 14134 referred to the 14134-1 &= 14134-2 25mm bayonet pair. The 14135 threaded 25mm extension ring went= between them, and was available as an option. The 14159 number was used= when all three were purchased together. Now, if I'm wrong, someone can= correct me on this. Hope this helps. David. PS: I'm planning on being in 'Frisco for the LHSA meet in October. Perhaps= we'll meet up!! :-) David Young, Logan Lake, BC CANADA. Personal Web-site at: http://www3.telus.net/~telyt Leica Reflex Forum web-page: http://www3.telus.net/~telyt/lrflex.htm ------ Unsubscribe or change to/from Digest Mode at: http://www3.telus.net/~telyt/lrflex.htm Archives are at: www.freelists.org/archives/leicareflex/