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[OM] Re: Best place to service Tamron 400 F4--? service experience with

Subject: [OM] Re: Best place to service Tamron 400 F4--? service experience with KEH o...
From: NSURIT@xxxxxxx
Date: Sun, 19 Nov 2006 21:11:56 EST
 
In a message dated 11/19/2006 5:50:17 P.M. Central Standard Time,  
USHER99@xxxxxxx writes:

Unfortunately there is 4- 6 mm of  play 
in the rear of the  barrel just behind the tripod mount.  Clearly  something 
is  
askew. I can't see anything to tighten w/o   disassembly.


 
Mike, When I got mine 3 or 4 years ago from an eBay seller who slow as heck  
about shipping.  Seems like he took 5 or 6 weeks to ship, after I had  
PayPaled the money, it needed a cleaning.  Rather than having a dirty  filter, 
a 
large bug had crawled inside the lens (through the filter slot  and died).  It 
then dried up and started falling apart.  Things could  be worse!   I called 
Tamron and was pretty much unimpressed with  their price and the way they 
hedged 
their bets about any firm commitment  for completing the project at or near the 
high price they had quoted.   Their price may not have been high and it was 
about twice what KEH  quoted me.  I sent it to KEH and was please with the 
service and the  pricing.  They had cleaned a lens or two for me in the past.  
I'd 
 use them again.
 
Now to the play in the barrel.  As you hold the lens with  the lens mount 
toward your body, as if it were mounted on the camera,  there is a knob used to 
loosen the tripod collar so you can change the  orientation of the camera.  If 
that knob is loose on my lens, the play you  mention is present.  If it is 
properly tightened, there is no play.   I  don't know why it is that way, 
however 
it has always been that way with  my lens.  My assumption is that there is a 
reason it does that and the lens  works just fine.  Were it me, I'd shine a 
small flash light through  the lens to see if there was any dirt, dust or dead 
bugs and if there were none,  I'd probably not send it in for the CLA.  I do 
believe in fixing stuff that  needs fixing, however if it doesn't then not 
messing with it usually works for  me.   <{8^)  Bill  Barber    


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