Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-19-2009, 01:16 PM   #1
Veteran Member




Join Date: Nov 2006
Location: Maryland
Photos: Gallery
Posts: 736
Another 16-50 dead

Well looks like I may be getting yet another DA*16-50
I had my first one around 7-8months before it started acting weird, sent it in and got a new one.
Got my latest about the same time, maybe a little longer, and same issues again So come Monday Its being sent off. I have to admint I love the PPS services I am using it for the first time for loner equipment (getting a 15-50 on loan) and hopefully everything will mesh well.
Last time I sent in a camera for repair, 4 days later I had it back, Hopefully this will be the same.

Oh and for those wondering, PPS has not gotten any k7's or DA*60-250 for loan

07-19-2009, 01:19 PM   #2
Veteran Member
Andi Lo's Avatar

Join Date: Jul 2008
Location: Halifax, Nova Scotia
Posts: 2,925
This time it's still under warranty I hope? I wonder if it dies outside warranty if there it's better to just buy a new one or if pentax will repair it for a reasonable fee... Is your serial number a late one or an early one?

Either way I still think I'm going for a Sigma / Tamron if I ever need this range, hopefully by that time they have a HSM version.
07-19-2009, 01:40 PM   #3
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,681
Seems there are a number of SDM/HSM failures, not just with Pentax lenses.
Not as robust as the screw-drive mechanism I gather...

Hope it works out for you.

Last edited by Ash; 07-19-2009 at 01:57 PM.
07-19-2009, 04:32 PM   #4
Senior Member
wowtip's Avatar

Join Date: Nov 2006
Location: West coast
Photos: Gallery
Posts: 254
Sorry to hear that Brendan.


QuoteOriginally posted by Ash Quote
Seems there are a number of SDM/HSM failures, not just with Pentax lenses.
Not as robust as the screw-drive mechanism I gather...
Yes, SDM/HSM might be more silent and in some cases faster, but of what use is that if the motor fails? This is one of the reasons I chose Pentax over other brands, they don't put stabilization in lenses. The less electronics / gyros / motors in the lenses the less possible points of failure. KISS principle, anyone?

This is kind of sad, the 16-50 and even more so the 50-135 looks like great zooms, weather sealed and all. But I am not going to give out that kind of money for a lens where there is good possibility that it will be MF only in a few years time.

At least Pentax could provide an option in camera to select if to use SDM or screwdrive, as many have suggested. Then you could at least use it with AF if SDM fails outside the warranty.

07-19-2009, 05:58 PM   #5
Veteran Member
Andi Lo's Avatar

Join Date: Jul 2008
Location: Halifax, Nova Scotia
Posts: 2,925
QuoteOriginally posted by wowtip Quote
Yes, SDM/HSM might be more silent and in some cases faster, but of what use is that if the motor fails? This is one of the reasons I chose Pentax over other brands, they don't put stabilization in lenses. The less electronics / gyros / motors in the lenses the less possible points of failure. KISS principle, anyone?
On the other hand maybe our cameras won't last as long internally, but I guess it's a bit too early to tell with the earliest SR generation only 5-6 years old.
07-20-2009, 09:51 AM   #6
Veteran Member




Join Date: Sep 2006
Photos: Gallery
Posts: 5,713
QuoteOriginally posted by wowtip Quote
This is kind of sad, the 16-50 and even more so the 50-135 looks like great zooms, weather sealed and all. But I am not going to give out that kind of money for a lens where there is good possibility that it will be MF only in a few years time.
You would think that these motor drive lenses would still give you manual focus operation when the motors die. But you'd often be WRONG.

At least with Canon mount (and Sigma mount being the same electronics) when the motors go the entire lens appears to fail.
I've seen it happen a few times, the last time the motors (on my lens) tried constantly cycling making the camera useless.
07-20-2009, 12:36 PM   #7
Pentaxian




Join Date: May 2007
Location: WW community of Pentax users
Photos: Gallery | Albums
Posts: 2,139
If only the screw drive would kick in when the SDM dies...
04-02-2011, 04:16 PM   #8
Veteran Member




Join Date: Nov 2006
Location: Maryland
Photos: Gallery
Posts: 736
Original Poster
Looking like its getting time to send back again, failure to lock focus, skipping/hickuping when focusing and sometimes extremely slow to respond... ugg

04-02-2011, 11:22 PM   #9
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,681
After just over 18 months of a replacement... sorry to hear.
Hope the repair sorts it out for you for the long term.
04-03-2011, 02:10 AM   #10
Pentaxian
twitch's Avatar

Join Date: Nov 2009
Posts: 4,571
The 16-50 has become a joke of a professional lens. Pentax urgently need to redesign it to house a new reliable motor.
04-03-2011, 08:06 AM   #11
Veteran Member
pop4's Avatar

Join Date: Aug 2007
Location: YMML
Photos: Gallery
Posts: 1,877
QuoteOriginally posted by Ash Quote
Seems there are a number of SDM/HSM failures, not just with Pentax lenses.
Not that HSM (Sigma), SDM (Pentax), USM (Canon), SWM (Nikon) all don't have issues, but to me, it seems like there is disproportionate number of SDM failures compared to the others, especially for the DA* 16-50 and DA*50-135 lenses (from my own anecdotal evidence gathered though reading on the net and real life experiences).
04-03-2011, 09:58 AM   #12
Pentaxian
v5planet's Avatar

Join Date: Jan 2010
Location: Seattle
Photos: Albums
Posts: 1,904
QuoteOriginally posted by Andi Lo Quote
On the other hand maybe our cameras won't last as long internally, but I guess it's a bit too early to tell with the earliest SR generation only 5-6 years old.
I would be substantially less remiss to replace a camera every few years than a lens. I expect to be wooed by new camera technology and shell out to keep apace at interval; less so with the glass.
04-03-2011, 01:47 PM   #13
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,681
QuoteOriginally posted by pop4 Quote
Not that HSM (Sigma), SDM (Pentax), USM (Canon), SWM (Nikon) all don't have issues, but to me, it seems like there is disproportionate number of SDM failures compared to the others, especially for the DA* 16-50 and DA*50-135 lenses (from my own anecdotal evidence gathered though reading on the net and real life experiences).
That's a statistic we'll never be able to substantiate, and I'm not sure USM lenses are any less proportionally prone to failure. It would be very nice to know those stats, but then what to do about it? Only Pentax can rectify their SDM technology...
04-03-2011, 05:23 PM   #14
Senior Member




Join Date: Feb 2008
Location: Mount Shasta
Posts: 185
Pentax does not even acknowledge there is a problem. I am saving up to move to another system.
04-03-2011, 05:38 PM   #15
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,681
Good luck with your other system.
What will happen though when that one also fails on you?
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
k-mount, loan, pentax lens, slr lens, time
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is my ME dead? Oro Pentax Film SLR Discussion 1 08-24-2010 02:24 AM
People BANG! You're dead. nitrox28 Post Your Photos! 1 03-08-2010 09:53 AM
Nature i'm not dead yet..... dcmsox2004 Post Your Photos! 8 10-23-2009 11:23 AM
Nature Dead robin gdog Post Your Photos! 2 10-16-2009 03:05 PM
HELP! Dead DL. Mallee Boy Pentax DSLR Discussion 14 10-28-2007 02:42 PM



All times are GMT -7. The time now is 07:50 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top