Excuse me, but what is MTBF? All the best! Raimo Personal photography homepage at http://personal.inet.fi/private/raimo.korhonen
-----Alkuperäinen viesti----- Lähettäjä: Bruce Dayton <[EMAIL PROTECTED]> Vastaanottaja: Kenneth Waller <[EMAIL PROTECTED]> Päivä: 05. tammikuuta 2002 1:50 Aihe: Re[2]: Vs: Vs: Re[2]: MZ5 and MZ5n Z1p Question >Kenneth, > >It certainly would be interesting to compare the MTBF of the motors of >the PZ-1p and the ZX-5n. After using them both, I gotta believe the >PZ-1p is higher. > > >Bruce Dayton > > > >Friday, January 04, 2002, 4:11:27 PM, you wrote: > >KW> I've had a failure of the motor on a PZ1 after several years of heavy usage >KW> (maybe 1500 - 2000 rolls of 36 exp, no home rolled), and also on a PZ1P >KW> after significantly less usage than the PZ1. The Pentax repair tech in >KW> Colorado said it was unusual, but not unexpected given the amount of usage. > >KW> Ken Waller >KW> ----- Original Message ----- >KW> From: Bruce Dayton <[EMAIL PROTECTED]> >KW> To: Raimo Korhonen <[EMAIL PROTECTED]> >KW> Sent: Friday, January 04, 2002 12:16 PM >KW> Subject: Re: Vs: Vs: Re[2]: MZ5 and MZ5n Z1p Question > > >>> Raimo, >>> >>> Don't know for sure, but based on reports on the list here for the >>> past several years, I would say that the PZ-1p is more reliable on >>> motors. There have been multiple reports of ZX-5's failing on film >>> transport and I have yet to hear of any PZ-1p's. My guess is that the >>> ZX series motors are cheaper and lighter - has nothing to do with >>> better reliability, only worse. >>> >>> >>> Bruce Dayton >>> >>> >>> >>> Friday, January 04, 2002, 9:08:00 AM, you wrote: >>> >>> RK> Maybe the PZ-1p has more torquey motor(s) - it has more FPS, too. But >KW> does it really affect reliability - only time and prolonged use will tell. >KW> Maybe the MZ series has less torque to improve >>> RK> longevity, who knows? >>> RK> Does the PZ-1p have one motor just for rewind? IIRC the Canon T-90 had >KW> 3 motors. Many cameras have only one. >>> RK> All the best! >>> RK> Raimo >>> RK> Personal photography homepage at >KW> http://personal.inet.fi/private/raimo.korhonen >>> >>> RK> -----Alkuperäinen viesti----- >>> RK> Lähettäjä: Bruce Dayton <[EMAIL PROTECTED]> >>> RK> Vastaanottaja: Raimo Korhonen <[EMAIL PROTECTED]> >>> RK> Päivä: 04. tammikuuta 2002 1:00 >>> RK> Aihe: Re: Vs: Re[2]: MZ5 and MZ5n Z1p Question >>> >>> >>> >>Raimo, >>> >> >>> >>Yes, but have you been using bulk rolled film? It doesn't roll in and >>> >>out of the cannister as smoothly as the manufacturers stuff. I have >>> >>several ZX's and had 2 PZ-1p's. When winding and rewinding, the PZ-1p >>> >>tends to pull without any change in motor speed (pitch). The ZX's >>> >>however, tend to go up and down quite noticeably during rewind on bulk >>> >>rolled film. Plastic cannisters are even worse than metal ones. So I >>> >>am saying that the power-torque (not speed) of the PZ-1p is better >>> >>than the ZX's. My current MZ-S's seem better than the ZX series, but >>> >>not quite as strong as the PZ-1p. >>> >> >>> >>Hope this clears things up. >>> >> >>> >> >>> >>Bruce Dayton >>> - - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
