Has the SDM failures been dropping off lately?

Started Mar 11, 2012 | Discussions thread
Luis Fonseca Regular Member • Posts: 326
Re: I am not a Pentax user, but out of interest Primes vs Zooms?

Bajerunner wrote:

Not a current Pentax user (learnt on K1000 many moons ago though, before a LOONG absence) currently (have a Nikon D5000, interested in upgrading to D40O ???), but interested to know, is there a different 'reported' failure rate between primes and zooms?

Yes but... there is a different 'reported' failure rate between first and newer batches making the DA* 16-50 the biggest victim.

Are the primes a 'safe harbour', or do some of theose have issues too?

Most Pentax primes don't have SDM motors. IIRC only the 55, the 200 and the 300 have SDM motors. All the others are definitely 'safe harbour'.

Do some of you take a refuge in third party lenses (such as Tamron, even Sigma has reported failures) ?

All motors will eventually fail if not serviced regurlarly. It doesn't matter if they are Pentax, Tamron, Sigma, Canon, Nikon or Rolls-Royce.

Just curious.

Pentax K5 is highly interesting, basically a D7000 sensor in D300 body (type of replacement expected as D400), for same money as D7000. Not bad at all.

Yes on the sensor and the money, no on the body. The K-5 may have similar build to D300 but is a lot smaller in size. It's size is between D7000 and D5100.



You're wellcome.

Have fun,

 Luis Fonseca's gear list:Luis Fonseca's gear list
Pentax K-5 Sony Alpha NEX-3N Pentax smc FA 50mm F1.4 Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM Pentax smc DA 12-24mm F4.0 ED AL (IF) +10 more
Post (hide subjects) Posted by
(unknown member)
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow