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11-02-2014, 08:29 AM   #496
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QuoteOriginally posted by normhead Quote
Funny on many levels... since the 50s used to be the kit lenses.
True, I have two such kit lenses... the 50 1.7 and the 55 1.8 from a KX and a KM respectively!

11-02-2014, 08:32 AM   #497
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QuoteOriginally posted by normhead Quote
There just isn't that much room for improvement over the 18-135, straight up in IQ.
Do go too far... This guy is not the perfect lens neither

---------- Post added 11-02-14 at 04:35 PM ----------

QuoteOriginally posted by lytrytyr Quote
Maybe for you, Norm, . . .


. . . but the way I take pictures, edge performance is important, especially at longer focal lengths.
The way I read your writings it appear that you care only of border sharpness, not center... And that apparently you never have bokeh in your long focal shoots that could hide a border weakness.
11-02-2014, 08:35 AM   #498
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QuoteOriginally posted by normhead Quote
...16-18 mm, which is a pretty small difference.
Many, including myself, will argue that it is a big difference.
11-02-2014, 08:51 AM   #499
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QuoteOriginally posted by Pablom Quote
Many, including myself, will argue that it is a big difference.
Would say it is a medium difference . Likely in many case if 18mm is not enough, 16 will be not enough or at the limit. Still this can be conveniant. But it is not like 12 vs 18 or 15 vs 21. No 16 vs 18 is like 32 vs 36 or 64 vs 72...

That not that of big deal.

11-02-2014, 08:59 AM   #500
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The 16-45mm outperforms the 18-135mm in their common range for resolution across the frame, colour & contrast, fringing and especially distortion. That would be a good target for the 16-85mm. I expect it will not get there for distortion, the 16-45 has the lowest barrel distortion of any standard zoom available for K-mount. CA can definitely be improved over the 16-45.

I'm of two minds about range. If I'm only carrying one lens, I would rather have 18-135 over 16-90, because I shoot more tele than wide. If I'm carrying the 55-300 WR, I'd rather have 16-85 than 18-135.

Last edited by audiobomber; 11-02-2014 at 09:08 AM.
11-02-2014, 09:45 AM   #501
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Photos?

Does anyone have this lens yet? I have not seen any photos. I love my DA*16-50 so it will have to be pretty good at the current price to even tempt me.
11-02-2014, 09:50 AM   #502
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QuoteOriginally posted by normhead Quote
Funny on many levels... since the 50s used to be the kit lenses.

The 16-85 and 18-135 are both zooms. Neither of them can be considered to be an upgrade to a prime in the primes focal length. So no, it's not the same.
Of course they can be. If you have a 50mm and you need a WA, a plain good old 18-55 is an upgrade.
If you need more reach they both are an upgrade too.
It doesn't matter what you think about optical qualities: in that case you have a picture or you don't. Simple as that.

Of course if the comparison of a lens should only be made at a specific focal because it suits your reasoning, it may be time to upgrade (pun intended) your reasoning
11-02-2014, 10:03 AM   #503
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QuoteOriginally posted by Nicolas06 Quote
And that apparently you never have bokeh in your long focal shoots that could hide a border weakness.
Bokeh is the attempt to escape from a badly selected background!

11-02-2014, 10:10 AM   #504
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QuoteOriginally posted by y0chang Quote
Ive shot at night under streetlights with my 12-24 f4 hand held. With ISO 3200, IBIS, 12mm, and sharpness at f4, it worked out quite well. I think there is some bias perpetuated by Canikon, people think that if a zoom isnt f2.8 or a prime isnt f1.4, then the lens isnt suitable for night photography. Pentax does not believe in that philosophy. This was shot at f6.3, 1/13th, ISO 3200.
That's a really nice picture, however I don't like the before-RAW NR that comes into play when shooting above ISO 1600...
I want to be able to control noise the way I want in PP, not having detail smushed in-camera.
With a new-gen NR engine I could be able to recover that detail, say ten years from now, much more effectively that relying on in-camera algorithms...
11-02-2014, 10:29 AM   #505
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QuoteOriginally posted by LensBeginner Quote
That's a really nice picture, however I don't like the before-RAW NR that comes into play when shooting above ISO 1600....
I don't know which camera was used for the photo, but the K-3 does not apply NR to raw.
11-02-2014, 10:36 AM   #506
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QuoteOriginally posted by audiobomber Quote
I don't know which camera was used for the photo, but the K-3 does not apply NR to raw.
Talking about my K-01 (that's why I seldom underexpose ISO1600 pictures)
Can't tell the camera of the picture because the EXIF info has been stripped.
11-02-2014, 10:44 AM   #507
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How can this lens be considered truly weather resistant when it zooms out in two segments in a pretty long extension and displaces so much air doing so? I live in a very rainy part of the USA and I am not keen to use lenses that pump a lot of moist air into my lenses and camera. I use the DA12-24 and legacy AF Sigma zooms because they barely extend. It just seems like the safer thing to do considering I'm out in wet weather a lot. I think the weather sealing on this new lens will help deter water drops from running down into the lens (which IS a big thing), but little else. What do you think? Am I alone on this?
11-02-2014, 10:53 AM   #508
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QuoteOriginally posted by jeff knight Quote
How can this lens be considered truly weather resistant when it zooms out in two segments in a pretty long extension and displaces so much air doing so? I live in a very rainy part of the USA and I am not keen to use lenses that pump a lot of moist air into my lenses and camera. I use the DA12-24 and legacy AF Sigma zooms because they barely extend. It just seems like the safer thing to do considering I'm out in wet weather a lot. I think the weather sealing on this new lens will help deter water drops from running down into the lens (which IS a big thing), but little else. What do you think? Am I alone on this?
Probably the engineers at Pentax don't know squat about weather resistance in lenses and the designation is just a marketing ploy.
11-02-2014, 11:00 AM   #509
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QuoteOriginally posted by jeff knight Quote
How can this lens be considered truly weather resistant when it zooms out in two segments in a pretty long extension and displaces so much air doing so? I live in a very rainy part of the USA and I am not keen to use lenses that pump a lot of moist air into my lenses and camera. I use the DA12-24 and legacy AF Sigma zooms because they barely extend. It just seems like the safer thing to do considering I'm out in wet weather a lot. I think the weather sealing on this new lens will help deter water drops from running down into the lens (which IS a big thing), but little else. What do you think? Am I alone on this?
It's true that a lens that doesn't extend would be safer, but I've had the 18-135mm out in hard rain and wet snow many times, and never had a problem.
11-02-2014, 11:12 AM   #510
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QuoteOriginally posted by jeff knight Quote
How can this lens be considered truly weather resistant when it zooms out in two segments in a pretty long extension and displaces so much air doing so? I live in a very rainy part of the USA and I am not keen to use lenses that pump a lot of moist air into my lenses and camera. I use the DA12-24 and legacy AF Sigma zooms because they barely extend. It just seems like the safer thing to do considering I'm out in wet weather a lot. I think the weather sealing on this new lens will help deter water drops from running down into the lens (which IS a big thing), but little else. What do you think? Am I alone on this?
This lens is not "truly" weather resistant, only AW/DA* lenses are.
WR is a simplified version that provides limited sealing.

As Pentax/Ricoh says.
"Humidity and dirt are the natural enemies of high performance electronics and precision
optics. AW lenses provide maximum weather-resistant and dustproof performance
preventing the intrusion of drizzle and dust into the lens barrel. The next category of “all
weather” PENTAX lenses is designated as WR or weather-resistant. These affordable lenses
utilize a simplified weather-resistant construction, making it more difficult for water to
enter the lens and are designed to repel a light splash of water."

http://c2b6d376b97bcc466063-5420c200a1f030d1394a9548df6eadbd.r5.cf2.rackcdn...._121912_LR.pdf
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