What does a Screwdrive Converted Pentax DA* 50-135mm F2.8 lens sound like?

Started 5 months ago | Discussions thread
MartinsB
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Re: What does a Screwdrive Converted Pentax DA* 50-135mm F2.8 lens sound like?
In reply to awaldram, 5 months ago

awaldram wrote:

DA* 16-50 7 years old no failure

da* 55 4 years old no failure

da* 300 6 years old no failure

da* 50-135 7 years old failed at 4 years was replaced

That gives an MTBF of 24 years !

How did you calculate that?

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Pentax K10D Olympus PEN E-PM1 Pentax smc DA 35mm F2.8 Macro Limited Pentax smc DA 18-55mm F3.5-5.6 AL WR +5 more
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