Archived posting to the Leica Users Group, 2008/05/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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 >>> >> > > >