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10-25-2017, 05:52 AM   #16
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It's not a DFA.... Wat Wid Dat??

I still have my sigma 8-16 for APS-c. I was all excited there for a moment.

10-25-2017, 05:53 AM   #17
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Hmm... the D FA* 50mm f/1.4 is a SDM lens... the question is, what kind of SDM?
10-25-2017, 06:02 AM   #18
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QuoteOriginally posted by normhead Quote
It's not a DFA.... Wat Wid Dat??

I still have my sigma 8-16 for APS-c. I was all excited there for a moment.
I don't think anyone has a 10-20mm zoom for full frame. I know folks use the Sigma 10-20, but they have to do some cropping to get it to work. Personally, I think the 15-30 is wide enough for normal purposes and has relatively mild distortion considering how wide it is. If you need wider, I suppose one of the Irix primes is the way to go.

---------- Post added 10-25-17 at 09:04 AM ----------

QuoteOriginally posted by Kunzite Quote
Hmm... the D FA* 50mm f/1.4 is a SDM lens... the question is, what kind of SDM?
Who knows? The 24-70 and 15-30 are both listed as "SDM" lenses, but clearly they have a different motor from any of the DA * lenses. Even the individual DA *lenses have different motors from each other.

Hopefully Pentax hasn't chosen an under-powered motor just to make a slightly smaller lens.
10-25-2017, 06:08 AM - 6 Likes   #19
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QuoteOriginally posted by normhead Quote
It's not a DFA.... Wat Wid Dat??

I still have my sigma 8-16 for APS-c. I was all excited there for a moment.
The DA Wide Angle Zoom which has been for ages on the roadmap is finally there, it has become a DA★ and you are unhappy? Bloody Pentaxians!

10-25-2017, 06:11 AM - 1 Like   #20
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QuoteOriginally posted by Kunzite Quote
Hmm... the D FA* 50mm f/1.4 is a SDM lens... the question is, what kind of SDM?
What ? You're thinking they took all those defective motors from the 16-50 and put them in the 50 1.4 to save money? What are you saying here?

MY understanding is SDM is a small electric motor that drives a gear, like screw drive with an internal motor. DC is a ring motor, PLM is a stepper motor.But I would also expect each SDM motor for each lens is specific to that lens. Surely they aren't one size fits all?

And yes, I called you Shirley.
10-25-2017, 06:17 AM - 1 Like   #21
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QuoteOriginally posted by normhead Quote
(...)

MY understanding is SDM is a small electric motor that drives a gear, like screw drive with an internal motor. DC is a ring motor, PLM is a stepper motor. (...)
DC is not a ring motor, it's a micromotor, and so are the non-Tamron SDMs -until now, that is
10-25-2017, 06:17 AM   #22
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QuoteOriginally posted by totsmuyco Quote
.Wow! The problem is, it looks like it's KAF4 mount. So, it won't work on my k-5II. I'm sad.
Yeah, me too. Come on, Pentax; give us that K-5 series firmware fix we need so badly. It's ridiculous that the downscale K-50 has it and this doesn't.

The good thing about it is that there's no huge overlap with the bottom end of the 18-whatever lenses. I'm guessing the difference between 11mm and 12mm is worth having?

Wonder what the coverage on the K-1 is going to be like...
10-25-2017, 06:17 AM   #23
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QuoteOriginally posted by Mistral75 Quote
Soon to be announced.
Looks pretty awesome! I think I would have preferred 11-28mm with slower aperture, but still tempting. Now for the price & weight...

QuoteOriginally posted by totsmuyco Quote
.Wow! The problem is, it looks like it's KAF4 mount. So, it won't work on my k-5II. I'm sad.
No, I think I see an aperture lever peeking out at the bottom right of both photos. You probably won't have that excuse to not buy it.

10-25-2017, 06:18 AM - 1 Like   #24
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We are DOOOOOMED tm
10-25-2017, 06:25 AM - 2 Likes   #25
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QuoteOriginally posted by Kozlok Quote
We are DOOOOOMED tm
It's just another lens I can't afford to add to the list of all the other lenses I can't afford.

---------- Post added 10-25-17 at 09:28 AM ----------

QuoteOriginally posted by Mistral75 Quote
The DA Wide Angle Zoom on the roadmap is finally there, it has become a DA★ and you are unhappy? Good old Pentaxians!
I have the Sigma 8-16 equivalent 12-24 on FF for my action camera, but no 12-24 for my K-1, my landscape camera. Should I be happy? Why?
10-25-2017, 06:30 AM - 1 Like   #26
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QuoteOriginally posted by normhead Quote
What ? You're thinking they took all those defective motors from the 16-50 and put them in the 50 1.4 to save money? What are you saying here?

MY understanding is SDM is a small electric motor that drives a gear, like screw drive with an internal motor. DC is a ring motor, PLM is a stepper motor.But I would also expect each SDM motor for each lens is specific to that lens. Surely they aren't one size fits all?
SDM - just like USM - can be a micromotor or a ring-type piezo "ultrasonic" motor. The question is, which is it. Are they launching their first ring-type SDM lens?
Even if it's a micromotor, I can't imagine Pentax would forget their experience with the DA* 16-50mm and put the exact same components.
10-25-2017, 06:31 AM   #27
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Damn, I just bought the DA 12-24. This 11-18 seems smaller, with f/2.8 to boot.

Nice one, Pentax you got my attention...! Any mention on when to expect this?
10-25-2017, 06:35 AM   #28
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Interesting. I would have expected a Pentax-branded Tokina 12-28/4 but apparently this is a completely new lens. Good to see they’re still investing in the APS-C lens line-up.
10-25-2017, 06:42 AM - 1 Like   #29
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Finally, it seems, a worthy successor to the DA12-24, and they even made it a DA*, standing by their faithful crop body users. Now that is good, exciting news.

The bad news is it may be years before I will be able to afford it ... But who knows.
10-25-2017, 06:46 AM   #30
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Weather sealed (crop) wide angle definitely was the major piece missing from their APS-C line up. We'll have to see how it tests.
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