F 70-210 blues.

[P. J. Alling]

My first problem.  I hit the screw heads holding the lens mount on with 
a soldering Iron each for about 3 minutes.  Two screws came out nice as 
pie.  the other three are stuck hard.  I've caused a little damage to 
two of them, but they still should work.  I tried more heat for a longer 
time on one of them.  No joy. I need a new plan.  I'm hoping someone 
here has an idea.

P. J. Alling wrote:
> 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.
>
>
>   


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