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08-14-2010, 11:09 PM   #1
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SMC DA 14mm F2.28 vs SMC DA*16-50mm F2.8

Does anyone knows which one is better in quality for the following wide angle lens:

SMC Pentax DA 14mm F2.8 Prime and SMC Pentax DA* 16-50mm F2.8 zoom

I can't make up my mind which one I should get. I am new to the SLR camera and lens. I am currently owning a SMC Pentax DA* 55mm F1.4 standard lens and would like to add a wide angle lens to my camera bag but not sure which one can produce better quality of picture. I heard there is a quality control in the 16-50mm zoom lens but not sure if it is true or not. I am also told that prime lens normally is better than zoom lens in quality.

Thank you,
Andy

08-14-2010, 11:34 PM   #2
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Well, you are comparing very different lenses. 14mm is much wider than 16mm. The zoom is versatile. Yes, the zoom has SDM and that is where the problems may lies. There used to be a de-centering defect on some batches too. If I were you, I'll get a DA15 and probably a DA35 or FA31mm to cover the gap.
08-15-2010, 12:09 AM   #3
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For wide angle I would get the 12-24/4 instead. It is spectacularly good, and I think it actually beats the 14/2.8 hands down (except for aperture, of course).

The 14/2.8 has pretty bad moustache distortion.
08-15-2010, 01:38 AM   #4
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I think Scorpioh's idea adding the DA15 and DA35 to my existing DA55mm is a good combination. It covers all gap.

Thanks Berbert for your comment.

08-15-2010, 05:13 AM   #5
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I had the 16-50 and I own the 14mm. The prime is very much more appealing then the zoom.

14mm is much bigger then the 15mm, but also one stop faster.

The 12-24 is a great lens, both in picture quality as in weight.
08-15-2010, 08:17 AM   #6
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Last month I bought the DA15mm. Before I got it, I went to B&H, brought my Kx along and tried the Sigma 10-20mm, Pentax 12-24mm, Pentax 14mm and the DA15mm. I shot only prime but I read good reviews on the Sigma and Pentax UWA zooms, so I added them to my shotlist. I like the Pentax 12-24mm very much when compared to the other lenses on my shortlist, and I almost bought my first zoom lens. I finally went with the DA15mm because of the weight + size factor. I would have preferred it comes with a different hood and a snap-on lens cap instead.

With the DA15mm, I am now covered from wide angle to medium telephoto. I also have the DA21mm, DA40mm and DA70mm.

I also took a look at the Pentax 16-50mm. It is very well built, handles good and the AF was very quick. However, for now, it stays on my shortlist of lenses of interest until Pentax improves on the SDM.

Just my 2 cents
08-15-2010, 08:27 AM   #7
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QuoteOriginally posted by tcsfoong Quote
Last month I bought the DA15mm. Before I got it, I went to B&H, brought my Kx along and tried the Sigma 10-20mm, Pentax 12-24mm, Pentax 14mm and the DA15mm. I shot only prime but I read good reviews on the Sigma and Pentax UWA zooms, so I added them to my shotlist. I like the Pentax 12-24mm very much when compared to the other lenses on my shortlist, and I almost bought my first zoom lens. I finally went with the DA15mm because of the weight + size factor. I would have preferred it comes with a different hood and a snap-on lens cap instead.

With the DA15mm, I am now covered from wide angle to medium telephoto. I also have the DA21mm, DA40mm and DA70mm.

I also took a look at the Pentax 16-50mm. It is very well built, handles good and the AF was very quick. However, for now, it stays on my shortlist of lenses of interest until Pentax improves on the SDM.

Just my 2 cents
is there any chance you could post up the pictures? i'm interested in all these lenses too, and i'm torn between the da15 and the 12-24
08-15-2010, 08:42 AM   #8
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Picture quality doesn't mean much, you'll see great and crappy photos taken with every lens. But here goes nothing:

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/106978-da-12-2...at-can-do.html

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/86234-15mm-lim...s-my-mind.html

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/110356-guide-u...24mm-lens.html

They're relatively the same sharpness. The DA12-24mm will be sharper in the wider apertures and the DA15 will be sharper at F8. It really comes down to the convenience of zoom vs small size. I chose the DA12-24 because it was quite a bit wider than the DA15 and it was useful in all conditions. It's a badass car lens. I'd only consider the DA14 if you want the thin depth of field for subject isolation such as portraits. There's also the Sigma 10-20 and Sigma 8-16 which are all very good lenses at spectacular prices. My personal ranking would be: DA12-24, DA15, then DA14. Keep in mind, I'm pretty prejudiced against zoom lenses. I'm a prime collector/user and will not switch to zoom unless it offers significantly better image quality than its prime counter parts.



DA15 f4-
+
lighter, smaller, slightly cheaper, low flares, low ca, best build quality


DA12-24 f4-
+
widest, very versatile, very low distortion
-
moderate CA, bulky lens hood, expensive filters


DA14 f2.8-
+
Thin depth of field
-
hard to correct distortion

08-15-2010, 08:48 AM   #9
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QuoteOriginally posted by A8YANG Quote
I think Scorpioh's idea adding the DA15 and DA35 to my existing DA55mm is a good combination. It covers all gap.

Thanks Berbert for your comment.
The difference between 35mm and 55mm is not significant. Keep in mind that the wider you go, the more each mm counts. In short, 10mm and 15mm is a huge difference while 50mm and 55mm are very similar despite the equal 5mm difference.

If you're going the prime route, you'll want something between 15mm and 35mm. However, I'd hesitate to suggest a 24mm or 28mm over the 35mm because the 35mm is an extremely fine lens with the ability to take great macro shots.

I'd suggest the 12-24mm, 35mm and 55mm combination, instead.
08-15-2010, 09:40 PM   #10
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Excellent idea. Thanks hangu.
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