I'd always wondered if the 35-105 had been made by someone else. It didn't
quite look like a real Olympus lens. The ring you turn to put it in close
focus mode looks like something from an off brand lens.
--
Chris Crawford
Fine Art Photography
Fort Wayne, Indiana
260-747-5101
http://www.chriscrawfordphoto.com My portfolio
http://blog.chriscrawfordphoto.com My latest work!
On 5/29/09 8:53 AM, "John Hermanson" <omtech1@xxxxxxxxxxx> wrote:
> Even if the front group unscrews easily (and it may), it's still a big
> job. The diaphragm plate has to come completely apart and all parts
> degreased.
>
> At least the plate has 3 screws holding it all together when you drop it
> back in. That is what tipped me off that the 35-105 zoom is definitely
> not Olympus built. The only screws holding all the blade parts in are
> the 3-4 screws that hold the blade assembly into the barrel. You have to
> get all the blades in place, put the cover plate on (no screws holding
> it on), set it all on top of a large diameter dowel and lower lens
> barrel down around it. Align it with holes in the barrel and get screws
> in before the blades fall out.
> ___________________________________
> John Hermanson | CPS, Inc.
> 21 South Ln., Huntington NY 11743
> 631-424-2121 | www.zuiko.com
> Olympus OM Service since 1977
> Gallery: www.zuiko.com/album/index.html
>
>
> Chuck Norcutt wrote:
>> Thanks for the warning. Sounds tough.
>>
>> Chuck Norcutt
>>
>> John Hermanson wrote:
>>> Remove front lens assembly, remove mount. There are (I think) 4 screws
>>> accessible from the back that hold the diaphragm assembly plate in.
>>> From the front, diaphragm cam, and some springs and levers may have to
>>> come out first. The hardest part MAY be simply unscrewing the from
>>> group. No set screws, just that many appear to be glued in. Even in
>>> the 80s, I watched Japanese techs (with 300/4.5 in a full size vice)
>>> with giant spanners trying to unscrew the front tube. It never budged
>>> even after liquid wrench, alcohol, acetone, every solvent under the sun
>>> was applied. Spanner eventually broke. Not really a do it at home job.
>>> ___________________________________
>>> John Hermanson | CPS, Inc.
>>> 21 South Ln., Huntington NY 11743
>>> 631-424-2121 | www.zuiko.com
>>> Olympus OM Service since 1977
>>> Gallery: www.zuiko.com/album/index.html
>>>
>>>
>>> Chuck Norcutt wrote:
>>>> Anyone have suggestions for disassembly of the 300/4.5 to clean up an
>>>> oily diaphragm? Someone I know (not on this list) has one and asked if
>>>> I had any tips for cleaning it. I gave him the parts list and exploded
>>>> assembly diagram and an old note from Clint that says the whole
>>>> diaphragm cage is to be removed as an assembly. But Clint's note didn't
>>>> say anything about the best way to get in.
>>>>
>>>> Chuck Norcutt
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|