I almost did that, luckily I thought a moment before posting. MTBF, and MTTF are not the same thing. MTBF is Mean Time Before Failure which is the average time before needing repair. MTTF is Mean Time until Total Failure which is the average time until it is no longer repairable.
-- graywolf http://www.graywolfphoto.com http://webpages.charter.net/graywolf "Idiot Proof" <==> "Expert Proof" ----------------------------------- Godfrey DiGiorgi wrote: > Which "the hybrid" are you talking about? There are several of them > on the market. Since you're equating "estimated life" with MTBF, > where do you get the MTBF data? What are the criteria for that MTBF > figure? > > Unless you can point to an accredited source of information > publishing this figure and the criteria by which it is defined, it is > worthless noise. > > G > > > On Aug 7, 2006, at 7:17 PM, P. J. Alling wrote: > >> You aught to know what mean time to failure is. I have a Saturn >> that's >> approaching 300,000 miles they have a MTTF of about 250,000 I'm on >> borrowed time. Just so there's no misunderstanding by time take the >> measure used for that particular device. Shutter cycles, miles, >> actual >> time doesn't matter, most can be expected to fail by that point in >> their >> lifespan. Some will fail a lot sooner and some will fail a lot later, >> but since it's all based on statistics there will always be outliers. >> >>> http://john1701a.com/prius/owners/jesse3.htm >>> >>>> That's 1/2 the estimated life of the hybrid. They're rated to last >>>> about 100,000 miles > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
