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02-28-2010, 09:22 AM   #1
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If not the DA*16-50mm, then what???

If one wanted the overall build quality, the speed, and the image quality of the DA*16-50 without having to risk the motor issues and focus issues, what lens would it be?

Same general zoom spread....

Same type of speed ... that's important

WR not really required, but build quality is a factor.

Who builds a possible candidate?

What lens is it?

Thanks for your opinions!!!

02-28-2010, 09:36 AM   #2
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Tamron 17-50mm f2.8. Outstanding lens, and a very viable candidate instead of the DA* 16-50. No weather sealing with the Tamron of course, but also no risk of SDM failure.
02-28-2010, 09:46 AM   #3
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I tried the tammy and send it back.

For thoose that do not want slower af than their kit lens, dont buy the Tamron.

It has half the way to turn its focus, compared to the kit lens, and it does it much slower than the 18-55.

Pentax seems to be the best on screw driven optics, imo.

BUT: The Tammy has a great optical value!!! very good picture quality compared to price!
02-28-2010, 10:43 AM   #4
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https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/88790-best-kit...ive-motor.html

02-28-2010, 07:01 PM   #5
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Maybe can wait for the latest sigma 17-50mm which was announced in PMA?
02-28-2010, 07:30 PM   #6
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FA* 28-70mm F2.8 is supposedly an outstanding lens but they seem quite rare.

Sigma 24-60mm F2.8

Have a scour through the lens review section on this site. There's a wealth of info there.
02-28-2010, 11:09 PM   #7
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QuoteOriginally posted by the swede Quote
I tried the tammy and send it back.

For thoose that do not want slower af than their kit lens, dont buy the Tamron.

It has half the way to turn its focus, compared to the kit lens, and it does it much slower than the 18-55.

Pentax seems to be the best on screw driven optics, imo.

BUT: The Tammy has a great optical value!!! very good picture quality compared to price!
I have no such issue with mine, fwiw.
03-01-2010, 12:07 AM   #8
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My tammy focuses faster than my da16-50

03-01-2010, 12:49 AM   #9
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Myabe the AF was faulty to on the one i tried. It was like this:
YouTube - Tamron 17-50mm ( IF) AF Speed

Maybe it SHOULD be like this:
YouTube - Tamron Nikon NI 17 50 50mm II AF SPEED

If the one i tried had a bad AF mechanism, i want to try it again!
03-01-2010, 01:57 AM   #10
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The DA* 16-50 is quite fast. A big factor in that is the focusing ring has very little ways to travel between minimal focusing distance to infinity.

[YT]http://www.youtube.com/watch?v=GPO0_OG_iIQ[/YT]
03-01-2010, 02:10 AM   #11
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QuoteOriginally posted by germar Quote
If one wanted the overall build quality, the speed, and the image quality of the DA*16-50 without having to risk the motor issues and focus issues,
How about just buying the DA * 16-50mm with an extended warranty? Prodigital2000 is including a Mack 8 year warranty with some of their listings. Unfortunately they aren't listing any 16-50mm right now.

Thank you
Russell
03-01-2010, 03:42 AM   #12
Ash
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There is no substitute currently for the DA* 16-50. None have SDM (an advantage IMO despite the critiques on its apparent high failure rate), none beat it in IQ, none are weather-sealed and none can compare with its build quality. Not even close.

You'd be waiting a while to see anything like it elsewhere, so if you've got the funds, go for the 16-50 and take out extended warranty as suggested previously.
03-01-2010, 03:49 AM   #13
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QuoteOriginally posted by germar Quote
If one wanted the overall build quality, the speed, and the image quality of the DA*16-50 without having to risk the motor issues and focus issues, what lens would it be?

Same general zoom spread....

Same type of speed ... that's important

WR not really required, but build quality is a factor.

Who builds a possible candidate?

What lens is it?

Thanks for your opinions!!!
I still have the old (pre-macro, pre-HSM) Sigma 18-50/2.8 and will keep it. Not only because my own DA 16-50 also fell apart a while ago and I want a backup at hand, but also, because it is much smaller and has less distortion. In terms of sharpness and contrast, the Sigma can easily hold its own, compared with the DA.

Several other users here in this forum use this lens and are very satisfied.

Ben
03-01-2010, 04:29 AM   #14
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QuoteOriginally posted by the swede Quote
Myabe the AF was faulty to on the one i tried. It was like this:
YouTube - Tamron 17-50mm ( IF) AF Speed

Maybe it SHOULD be like this:
YouTube - Tamron Nikon NI 17 50 50mm II AF SPEED

If the one i tried had a bad AF mechanism, i want to try it again!
I'll quote myself here.

I realy want to know how the focus speed on the Tammy works. If you got one, please compare with the clips i linked to. Because if its faster than the one sample i tested, then i will give it another shot!
03-01-2010, 04:38 AM   #15
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I have been very happy with my Tammy, so far I have found it to be very good with colors but can't say about focus speed because I haven't really had anything to compare to really. I haven't had much time to use it since I got it as the Sigma 100-300 came in right after and guess which one made it on the K20.
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