Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-11-2010, 11:41 PM   #1
Forum Member




Join Date: Aug 2010
Location: Pluto
Posts: 75
Since an APS K-5 is the case, is there a 16-50mm/2.8 update?

Now I am convinced that FF is no the only way for Pentax to go, since K-5 is APS and WR and has bette ISO and AF, isn't it a good time to improve the 16-50/2.8 that matches K-5?

A new 16-50/2.8 should have:
More powerful and reliable SDM, ring type
WR
eliminate screw drive

That would be tempting to me
actually I don't care about size, if I want real compact, I will choose sony TX series pocket camera

or we could say what we say when mentioned DA35/2.4 prime as a excuse

you don't need fast lens given good ISO performance blablablabla
kit lens is fast enough for most of the shoots blablablabla
you gonna to stop F2.8 down to F4 considering the IQ blablablabla

09-12-2010, 12:14 AM   #2
Forum Member




Join Date: Jan 2008
Location: Czech Republic
Posts: 61
yes, I would like to see an updated version of this lens too. Will wait till Photokina and see if Pentax will improve the SDM, if not will buy a Tamron 17-50/2,8 which price is nearly 1/3 of the DA* 16-50 price, but with no WR and SDM.
09-12-2010, 12:18 AM   #3
Veteran Member
kevinschoenmakers's Avatar

Join Date: Mar 2009
Location: Shanghai
Photos: Gallery
Posts: 1,513
QuoteOriginally posted by kales Quote
A new 16-50/2.8 should have:
More powerful and reliable SDM, ring type
WR
eliminate screw drive

1. There are reasons to believe this has already happened, quietly.
2. The current DA*16-50 has WR
3. The current DA*16-50 isn't compatible with screwdrive
09-12-2010, 12:22 AM   #4
emr
Guest




QuoteOriginally posted by kales Quote
A new 16-50/2.8 should have:
...
WR
kales, are you aware that the DA* lenses have weather shielding and that's allegedly perhaps even better than the one cheaper WR lenses have?

09-12-2010, 12:26 AM   #5
emr
Guest




QuoteOriginally posted by kales Quote
More powerful and reliable SDM, ring type
QuoteOriginally posted by kevinschoenmakers Quote
1. There are reasons to believe this has already happened, quietly.
Kevin, I know some very vague rumors suggest this and that some members believe it has happened, but is there really any reliable evidence? Until there is, I won't buy one single SDM lens.
09-12-2010, 12:27 AM   #6
Veteran Member
kevinschoenmakers's Avatar

Join Date: Mar 2009
Location: Shanghai
Photos: Gallery
Posts: 1,513
QuoteOriginally posted by emr Quote
Kevin, I know some very vague rumors suggest this and that some members believe it has happened, but is there really any reliable evidence? Until there is, I won't buy one single SDM lens.
I recall reading a thread about someone turning his DA16-50 in for repairs, and that it came back with a different SDM motor of some kind. Also, it has been quite quiet recently about failures (although admittedly, I don't keep track).
09-12-2010, 12:34 AM   #7
Veteran Member
tomtor's Avatar

Join Date: Apr 2008
Location: Netherlands
Posts: 382
QuoteOriginally posted by kevinschoenmakers Quote
I recall reading a thread about someone turning his DA16-50 in for repairs, and that it came back with a different SDM motor of some kind. Also, it has been quite quiet recently about failures (although admittedly, I don't keep track).
The problem is not reliability for me.
My 50-135 SDM focus is slow. Not a major issue for me but if pentax improves continuous af speed one would need lenses to match.
09-12-2010, 01:12 AM   #8
Forum Member




Join Date: Aug 2010
Location: Pluto
Posts: 75
Original Poster
QuoteOriginally posted by emr Quote
kales, are you aware that the DA* lenses have weather shielding and that's allegedly perhaps even better than the one cheaper WR lenses have?
Yeah, but I am not sure whether it's up to K-7/K-5 WR standard.

the DA*16-50's WR is for K10d I think, and K10d seems have a lower WR standard than K-7

09-12-2010, 01:25 AM   #9
Pentaxian
fearview's Avatar

Join Date: Apr 2008
Location: Jakarta
Photos: Gallery
Posts: 1,067
QuoteOriginally posted by kevinschoenmakers Quote
1. There are reasons to believe this has already happened, quietly.
2. The current DA*16-50 has WR
3. The current DA*16-50 isn't compatible with screwdrive
Kevin.. i dont know about information number 3. i always thought the only non screwdrive lens is DA 17-70?

please enlight me..
09-12-2010, 01:25 AM   #10
Forum Member




Join Date: Aug 2010
Location: Pluto
Posts: 75
Original Poster
QuoteOriginally posted by kevinschoenmakers Quote
1. There are reasons to believe this has already happened, quietly.
2. The current DA*16-50 has WR
3. The current DA*16-50 isn't compatible with screwdrive
Kevin,
Thank you for posting what you know.
for point 1, maybe pentax is doing some modifications quitely, but what I refer to is some structural change. I once saw a Sigma AF70-200HSM focus video, which impressed me alot. you could feel there's different speed configurations in the Sigma HSM motor, which is a ring type. What I know is DA*16-50's SDM is not ring type, and my assumption is that it still have gears to transfer the torque of the motor. Please correct me if I made mistakes on this.

point 2, as I said, pentax isn't priting WR on the lens, which make me concern it's lower grade than K-5/K-7 body. If so, it will be wasting to mount it to a better WRed body.

point 3, haven't heard it. could anyone confirm
09-12-2010, 01:30 AM   #11
Pentaxian
thibs's Avatar

Join Date: Jun 2007
Location: Belgium
Photos: Albums
Posts: 5,263
As for 3/ I think we should have known already (I mean it would have made some noise).
09-12-2010, 01:35 AM   #12
Veteran Member
kevinschoenmakers's Avatar

Join Date: Mar 2009
Location: Shanghai
Photos: Gallery
Posts: 1,513
QuoteOriginally posted by fearview Quote
Kevin.. i dont know about information number 3. i always thought the only non screwdrive lens is DA 17-70?

please enlight me..
Now that you mention it, I think you're right indeed.
09-12-2010, 01:39 AM   #13
Veteran Member
kevinschoenmakers's Avatar

Join Date: Mar 2009
Location: Shanghai
Photos: Gallery
Posts: 1,513
QuoteOriginally posted by kales Quote
point 2, as I said, pentax isn't priting WR on the lens, which make me concern it's lower grade than K-5/K-7 body. If so, it will be wasting to mount it to a better WRed body.

point 3, haven't heard it. could anyone confirm
They don't put WR on the lens because the DA* line is WR by default.

As for point 3, I was wrong, actually.
09-12-2010, 01:41 AM   #14
ogl
Pentaxian
ogl's Avatar

Join Date: Dec 2007
Location: Siberia
Photos: Gallery | Albums
Posts: 7,254
DA*16-50/2.8 is NOT SDM only. But dual SDM and screw drive lenses can't work properly if SDM failed. No ability to choose the focus mechanism.
Dual focus lenses can work with cameras without SDM support.

DA17-70 and DA*55 are SDM only. They have no AF at cameras without SDM support.
09-12-2010, 01:44 AM   #15
Forum Member




Join Date: Aug 2010
Location: Pluto
Posts: 75
Original Poster
I am not comparing DA*16-50 with higher priced Canikon 17-55/2.8, but Canon mentioned on its spec says they used ring-type USM on their 17-55, nikon didn't mention it.

I will choose DA*16-50 tobe pure screw drive and lower price, or with a powerful top-grade ring-type SDM motor. Not like the current version, with poor SDM increased the complexity and cost.
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!
aps, iso, k-5, lens, pentax news, pentax rumors, wr
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
best 50mm for K-x aps-c boosted03gti Pentax SLR Lens Discussion 18 12-06-2010 10:54 PM
For Sale - Sold: Super-Macro_Takumar 50mm f4 with Case (US/CAN) germar Sold Items 0 10-23-2010 06:11 PM
For Sale - Sold: Hard Case for SMC M 50mm f4 Macro Lens (US) germar Sold Items 3 10-20-2010 12:26 PM
For Sale - Sold: Smc pentax-m macro 50mm f/4 lens case gofour3 Sold Items 0 11-30-2008 11:00 AM
For Sale - Sold: Soft Lens Case S100-140 for DA*16-50MM (AUSTRALIA) Adrian Owerko Sold Items 8 11-01-2008 04:47 PM



All times are GMT -7. The time now is 05:45 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