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03-05-2018, 11:28 AM   #106
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QuoteOriginally posted by FantasticMrFox Quote
That's true, but they have limited resources. Ideally they'd redo all and every lens they have with weather sealing, DC, PLM or new ring-type SDM, update optical formulas, introduce new lenses (I'd personally love update DA 35s und 50s, plus a DA 24) ... But they can only work on so many lenses at once, so they prioritise. It seems like right now they are concentrating on completing a strong FF line-up, including large aperture primes, and a strong APS-C *-level line-up.

They already have the HD DA 16-85 WR, so I guess the DA 17-70 f/4 is just not a priority?
Too true but I shouldn't comment since my 17-70 works so well I would not be the target market anyway.

03-05-2018, 02:47 PM - 2 Likes   #107
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QuoteOriginally posted by sungibr Quote
I wouldn't go that far, but a redesigned zoom ring should make me more happy.
The ring on mine 16-50 broke after one and half year of use.
I got really angry about that!
Shouldn't da* lenses aspire to the same quality as dfa* lenses?
03-05-2018, 09:20 PM   #108
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QuoteOriginally posted by FantasticMrFox Quote

They already have the HD DA 16-85 WR, so I guess the DA 17-70 f/4 is just not a priority?
3.5-5.6 and constant f4 are rather different lenses...

????? / K??????? / ??? / ?? | RICOH IMAGING
DA17-70 is still in line of Pentax lenses....
03-06-2018, 02:30 PM   #109
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Good news. The Limited lens range will be expanded.

03-17-2018, 05:36 AM   #110
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QuoteOriginally posted by ogl Quote
I think it will be DA*200/2.8 and DA*300/4 first of all

We have now 6 lenses
DA*55/1.4, DA*200/2.8 and DA*300/4
DA*50-135/2.8, DA*60-250/4, DA*16-50/2.8
DA* 200/300 with new dedicated TC(s) would make a lot of sense. A 5.6/400 will not show up ;-( as it would compete with D-FA 150-450.
Many other lenses could do with new AF motor... updates will not show up in the roadmap, so hoping for updates will show that Pentax is alive since delivery of roadmap lenses is more than slow.
03-17-2018, 08:33 PM   #111
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Updated DA*300 with a dedicated TC would be a dream come true!
03-17-2018, 09:01 PM   #112
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QuoteOriginally posted by FantasticMrFox Quote
I think only giving the 16-50 a new AF motor would be a wasted opportunity.

I've never used it myself (went for the Sigma 17-50), but it seems to have certain optical weaknesses (strong CA, low border sharpness wide open). It came last in the PF comparison review vs. the Tamron and Sigma, and was described as having "poor wide open sharpness, atrocious flare resistance, and heavy distortion at 16mm", at twice the price of the other two.

I know a lot of people like it, but if Pentax wants to continue asking $800 for this lens, I think a new optical design is in order.
humm..., but no, HD coating should be good enough.
03-18-2018, 08:51 AM   #113
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QuoteOriginally posted by Zygonyx Quote
humm..., but no, HD coating should be good enough.
I don't need to have used every lens myself in order to form an opinion of it. There are plenty of qualitative and quantitative reviews out there, and if most of them agree on certain strengths and weaknesses, then they're probably reliable

03-18-2018, 10:36 AM   #114
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Yes, time will tell if they only change the engine.
03-18-2018, 01:12 PM   #115
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QuoteOriginally posted by FantasticMrFox Quote
I don't need to have used every lens myself in order to form an opinion of it. There are plenty of qualitative and quantitative reviews out there, and if most of them agree on certain strengths and weaknesses, then they're probably reliable
The 16-50 is definitely an underrated lens, but reliability is its biggest weakness. CA is practiacally a non issue with PP, and the lens only needs to be sharp (enough) in the centre wide open and across the frame stoped down to F8. It has great colour and OOF rendering, and in a AW package and starting at 16mm it offers a lot more than the other two options if sharpness is not your primary consideration.
Of course i fully agree that it could be improved, and who knows maybe there might be some element tweaks as well.
03-18-2018, 02:27 PM - 3 Likes   #116
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QuoteOriginally posted by robjmitchell Quote
The 16-50 is definitely an underrated lens, but reliability is its biggest weakness. CA is practiacally a non issue with PP, and the lens only needs to be sharp (enough) in the centre wide open and across the frame stoped down to F8. It has great colour and OOF rendering, and in a AW package and starting at 16mm it offers a lot more than the other two options if sharpness is not your primary consideration.
That's quite debatable. Of course CA can be removed in PP, but the software doesn't magically restore whatever information was obscured behind the CA. Slim CAs aren't a problem, but once we're talking about several pixels wide you just get mush instead after the removal. As for sharpness, if you place your subject off-centre and want a narrow depth-of-field, you suddenly want more than just the centre to be reasonable sharp at f/2.8
03-19-2018, 02:34 AM - 1 Like   #117
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CA will be handled sufficently with HD coating.
This said, I am really satisfied with my copy.
03-19-2018, 02:36 AM   #118
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This makes life more complicated for those of us planning to buy new glass with a tax refund. I might have to squirrel away the cash and wait...
03-19-2018, 09:42 AM   #119
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More complicated? Because you've got choice?
Sorry I don't understand 😕
03-19-2018, 01:57 PM - 1 Like   #120
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The 16-50 never deserved the star designation.
CA, flare, edge sharpness at wider apertures.
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