Archived posting to the Leica Users Group, 2008/05/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Jim H., Thanks for the great detailled information that you have provided. I will certainly look into this improvement. Very clever use of camera buttons to input data to the chip. Jim Nichols Tullahoma, TN USA ----- Original Message ----- From: "Jim Hemenway" <Jim@hemenway.com> To: "LUG" <lug@leica-users.org> Cc: "Jim Nichols" <jhnichols@bellsouth.net> Sent: Tuesday, May 20, 2008 11:45 AM Subject: Re: [Leica] How does that tricky little chip attach? > Good Afternoon Jim: > > Here's some quicky photos showing the AF chip in use with a Takumar > screw-mount lens. > > <http://www.half-fast.com/K-mount-to-Olympus-with-Sm-to-k-insert/> > or: http://tinyurl.com/3wfcz8 > > 1) Chip mounted in the K-mount to Olympus adapter with SM-K insert > 2) Insert mounted in front of adapter > 3) Adapter, (with insert) mounted on lens > 4) Pin shown, (barely) under the chip > > There's a slight clearance between pin and chip but even with a longer > pin, it depresses with so little resistance that there isn't a problem. > > Gluing the chip flush with the edge will provide more clearance. > > Here's some info, section D, regarding setting the focal length of a non > Oly AF lens in order to get optimum IS results: > http://www.tagotech.com/pic/chip_prg.html > > Jim > > Jim Nichols wrote: > >> Jim, >> >> Do your screw mount lenses have the spring-loaded pin that stops down the >> aperture? I wanted to be sure that the pin did not cause a conflict with >> the chip. >> >> Jim Nichols >> Tullahoma, TN USA >> ----- Original Message ----- From: "Jim Hemenway" <Jim@hemenway.com> >> To: <jhnichols@bellsouth.net> >> Sent: Monday, May 19, 2008 5:28 PM >> Subject: Re: [Leica] How does that tricky little chip attach? >> >> >>> Jim in Tennessee: >>> >>> I have glued the second AF confirm chip into a Pentax K to Olympus >>> adapter. It works fine with the older K lenses such as the SMC Takumar >>> 500mm and 1000mm. Am waiting for a clear windless day to try a few shots >>> from a nearby hill... I'll have to remember to turn off the "IS" when >>> using a tripod. ;-) >>> >>> <http://www.hemenway.com/E-510-SMC500-05182008/> >>> >>> It doesn't work with the modern Pentax AF lenses, all of mine have a >>> protruding prong at the back of the lens, just like my 19mm and 50mm >>> Leica R lenses. >>> >>> But the screw mount lenses all work! I put my old Pentax screw mount to >>> K mount adapter into the K mount to Olympus adapter. Then I screwed in >>> the old Taks and Voila, they all work fine. >>> >>> Jim in Massachusetts >>> >>> >>> Jim Hemenway wrote: >>> >>>> Hi Jim: >>>> >>>> The chip glues onto the inside of the adapter with the contacts >>>> touching those inside of the throat of the camera. The only >>>> interference I encountered was when I, (knowing it wouldn't work) >>>> attempted to attach the 50mm Summilux to the adapter. >>>> >>>> Here's the adapter and an alignment tool, (included with the adapter). >>>> <http://www.tagotech.com/pic/oly-chip1.jpg> >>>> >>>> I bought the Leica-R to Olympus adapters from jinfinance in Shanghai as >>>> recommended by Steve Barbour >>>> Item # 350050189176 >>>> <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:B:EOIBSAA:US:11&Item=350050189176> >>>> >>>> or: http://tinyurl.com/6gkrap >>>> >>>> and two AF-confirm chips from Tagotech in Singapore: >>>> Item # 250239905597 >>>> <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250239905597&ru=http%3A%2F%2Fsearch.ebay.com%3A80%2Fsearch%2Fsearch.dll%3Ffrom%3DR40%26_trksid%3Dm37%26satitle%3D250239905597%26category0%3D%26fvi%3D1> >>>> >>>> or: http://tinyurl.com/58xkqd >>>> >>>> In the mail today I received a Pentax-K to Olympus adapter from >>>> kawaphoto in Iowa >>>> Item # 290228988300 >>>> <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290228988300> >>>> or: http://tinyurl.com/3q3tya >>>> >>>> ...into which I plan to glue the second AF-confirm chip. I know it >>>> might seem a bit "over the top", but I want to try my Pentax SMC 1000mm >>>> on the 2x E-510. ;-) >>>> >>>> Here's my two lenses which don't work with the AF-confirm chip: >>>> <http://www.hemenway.com/19and50mm-R.jpg> >>>> >>>> You can see the semi-circular part in the back of each which gets in >>>> the way of the chip. Another Leica-R to Olympus is on its way to me >>>> from jinfinance. >>>> >>>> The 28-70 zoom also has a protruding part but it is small enough to >>>> leave a paper thin space between the adapter and said protruding part. >>>> >>>> With the shutter button pressed halfway, the green light blinks until >>>> you reach focus... at the same time you'll hear a beep. >>>> >>>> Jim >>>> >>>> P.S. All three vendors were very helpful to me. >>>> >>>> >>>> Jim Nichols wrote: >>>> >>>>> Jim, >>>>> >>>>> How does the chip connect with the contacts inside the lens opening of >>>>> the E-510? Does it feel as if there is any interference when >>>>> attaching the lens and adapter? Do you get a clear green light when >>>>> you focus manually? This potential copycat wants to know. >>>>> >>>>> Thanks in advance. >>>>> >>>>> Jim Nichols >>>>> Tullahoma, TN USA >>>>> ----- Original Message ----- From: "Jim Hemenway" <Jim@hemenway.com> >>>>> To: "Leica Users Group" <lug@leica-users.org> >>>>> Sent: Friday, May 16, 2008 1:23 PM >>>>> Subject: [Leica] Olympus 510 with Leica-R lens >>>>> >>>>> >>>>>> >>>>>> I finally received the focus-confirmation chip, installed it into the >>>>>> Leica-R to 510 adapter, and here's some of the resulting photos. >>>>>> >>>>>> Five test shots around the house: >>>>>> <http://www.hemenway.com/E-510withLeicaR-May2008/> >>>>>> or: http://tinyurl.com/6h8zl2 >>>>>> >>>>>> Some of the items at Brimfield this past Wednesday. >>>>>> <http://www.hemenway.com/Brimfield-E510-05142008/> >>>>>> or: http://tinyurl.com/58jgh7 >>>>>> >>>>>> The chip works well except for R lenses with a protruding metal >>>>>> semi-circular part in the rear of the lens... as found in the 19mm WA >>>>>> and the 50mm Summilux. The chip can't co-exist in the same place as >>>>>> the semi-circular part. >>>>>> >>>>>> I've ordered another adapter to use with these lenses, albeit without >>>>>> focus confirmation. >>>>>> >>>>>> Jim >>>>>> >>>>>> _______________________________________________ >>>>>> Leica Users Group. >>>>>> See http://leica-users.org/mailman/listinfo/lug for more information >>>>>> >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> Leica Users Group. >>>>> See http://leica-users.org/mailman/listinfo/lug for more information >>>>> >>>> >>>> _______________________________________________ >>>> Leica Users Group. >>>> See http://leica-users.org/mailman/listinfo/lug for more information >>>> >>> >> >> >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >