F 70-210 blues.

[P. J. Alling]

Not an option unfortunately.  The brush was ruined before I opened the 
lens.  As it appears to be made out of unobtainium, that will stop most 
repair shops right there.  I can probably manufacture a brush out of a 
stiff wire, (the Nichrome wire used for old Estes rocket igniters seems 
to be a good thickness and about the right stiffness, though the 
resistance is probably much too high, but it's a starting point).  I 
really need suggestions for getting the initial screws out of the lens 
mount without ruining them..

Collin R Brendemuehl wrote:
> Given how deep the problem appears to be, maybe the $75 or so
> to have a shop repair it could save the possible headache of
> potentially doing it wrong.
>
> At 02:52 PM 6/5/2007, you wrote:
>   
>> Date: Tue, 05 Jun 2007 14:55:31 -0400
>> From: "P. J. Alling" <webster26 at mindspring.com>
>> Subject: F 70-210 blues.
>> To: Pentax-Discuss Mail List <pdml at pdml.net>
>> Message-ID: <4665B1A3.4030009 at mindspring.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Well it finally happened.  My F 70-210mm jammed.  Some of you may
>> remember Powell's 70-210mm repair, and the problem he had with the
>> information brush.  (for those who need a reminder
>> http://members.shaw.ca/hargravep/lenses.htm ).  It seems to happen no
>> matter what you do.  I'm on my way to disassembling mine in an attempt
>> to repair it.  Unfortunately it jammed in the 70mm position with focus
>> at infinity so the screws on the sleeve are in accessible.  I'm looking
>> for advice if there is any.  Well I'm off to buy a new soldering iron
>> since I can't find my old one, (hope that will be enough so that I won't
>> need to buy a JIS crosspoint screwdriver.  I suppose I could simply
>> replace it but this lens is too good not to try, and I'm too broke to
>> send it to someone else to tell me it's unrepairable.
>>     
>
>
> Sincerely,
>
> Collin Brendemuehl
> http://www.brendemuehl.net
> http://evangelicalperspective.blogspot.com
> http://evangelicalinteraction.blogspot.com
> http://philosophyforchristians.blogspot.com
>
> "He is no fool who gives what he cannot keep to gain what he cannot lose"
>                                                  -- Jim Elliott
>
>
>   


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