Re: so the 16-50 is the worst...: Pentax SLR Talk Forum: Digital Photography Review

Re: so the 16-50 is the worst...

User:	Flat view

Navigation:

^ Forum

|< First

< Previous

Next >

Next New >>


Forum	Pentax SLR Talk
Subject	Re: so the 16-50 is the worst... [SIMILAR]
Posted by	awaldram [PROFILE] [GALLERY]
Date/Time	06:46:14, 17 September 2009 (GMT)


exp1orer wrote: > ...and the most expensive gamble if anyone would purchase this lens. i'm right in my decision to hold the purchase of 16-50 until pentax fixed the issue. > > 16-50: 19 failures from 55 = 34.5% > 50-135: 13 failures from 73 = 17.8% > 17-70: Two failures from ten = 20% > 200: One from 11 = 9% > 300: One from 22 = 4.5% > 60-250: all good from 13 so far = 0% > 55: Eight good copies = 0% > > and then you read a few people here defending pentax and telling everyone that there's no problem with 16-50. And just to get some perspective heres lens rentals failure rate for other manafacturers Sigma 120-300 f2.8 41% Zoom mechanism, calibration, autofocus Sigma 18-200 OS 37% OS, Autofocus, zoom, barrel separation Nikon 18-200 OS 31% OS, Autofocus, zoom Sigma 50-500 31% Zoom mechanism, autofocus Canon 300 f4 IS 25% IS, autofocus electronics, barrel separation Tamron 70-200 f2.8 27.5% tight mount (Canon), autofocus Tokina 12-24 f4 PRO 25% zoom mechanism, autofocus Nikon 17-55 f2.8 25% Calibration, zoom ring, motor burnout Canon 50 f1.4 22.5% AF motor Canon 35 f1.4 22% Calibration, focus mechanicals Canon 17-55 f2.8 EF-S IS 22% IS failure, AF electronics, ERR99 Canon 10-22 EF-S 17.5% barrel separation, autofocus Nikon 70-200 f2.8 VR 17% zoom mechanism, manual focus clutch Nikon 17-35 f2.8 17% calibration, electronics Nikon 80-400 15% Electronic issues Canon 85 f1.2 13% Electronic issues Sigma 30 f1.4 12.3% calibration Canon 24-70 f2.8 11% Calibration, zoom mechanism Canon 100-400 IS 11% Zoom tension ring, Err99, calibration Nikon 14-24 f2.8 10% zoom mechanism > As you can seen the 16-50 does not make top failing lens. the 50-135 would be mid table. So as I've previously stated thought he 16-50,50135 and 17-70 have poorer reliability records they are not at the level where any manufacturer would do anything about it. They are all within acceptable level (maybe not from our point of view). > -- > www.exp1orer.com > http://www.pbase.com/explorer/image/114493836/medium.jpg -- My PPG http://www.pentaxphotogallery.com/home#section=ARTIST&subSection=1471087&subSubSection=0&language=EN My Photo Stream http://www.flickr.com/photos/awaldram/ Edited at 17/09/2009 05:52:02, 17/09/2009 (GMT)

Message	Reply Quote Complain

Navigation	^ Forum \|< First < Previous Next > Next new >>

Below is the navigator for this thread, you can use this to view other messages in this thread. You can use the previous and next buttons to scroll through the messages in this thread. Or the 'Next New' button to jump to the next newly posted message.

Subject	Posted by	When

Shortcut keys:

fForum

1First message

pPrevious

nNext

wNext new

rReply

qQuote

Back to:

Forum: Pentax SLR Talk

Forums