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Looking for new Pentax Lens - 10-17 mm vs. 16-50 mm - Advice?

Discussion

5 replies
Posted by Sarah Marino on November 22, 2008 at 4:27 PM
Hi everyone –

I have had my Pentax K10D (my first non-point and shoot) for about eight months. I bought a Tamron 18-250 (F/3.5-6.3 AF Di-II LD Aspherical (IF) Macro Lens) to accompany the camera body. I am ready to add to my lens collection and am interested in your advice. I prefer to shoot wide angle landscape scenes, so I am considering two wide-angle options. I am considering these two lenses:

Pentax Fisheye 10-17mm (fun to play with, with the capability to capture an undistorted wide angle view)
Pentax 16-50 mm (higher optical quality than my current lens, but mixed reviews on gear forums).

I might buy both, one, or something else. Any advice or personal experience? Thank you for your feedback!
Posted by Buck Ward on November 23, 2008 at 10:11 PM
I have no specific knowledge of the lenses you are considering. A fisheye lens is a specialty lens. It isn't used in the same way as a normal wide-angle lens is. I think you will find a normal wide-angle lens in the range of the 16-50 to be more useful for traditional landscape shooting. I love my Canon 17-40.

Your 1.5 crop factor may make you wish for something wider. You might also want to consider the Sigma 12-24mm. It's ultra wide and not a fisheye. I'm not endorsing it, just suggesting.
Posted by John Mumaw on November 23, 2008 at 10:49 PM
Nor am I familiar with these lenses, but I think you'll want as great a wide angle lens on the wide endas possible with your camera, which means one that starts in the 10mm range, whether it be the Pentax or a third party lens. This also ensures minimal overlap with your existing Tamron lens.

See this wide angle comparison chart to visualize what I mean.
Posted by Tom Lusk on November 24, 2008 at 8:44 AM
From what I have read, you had better avoid the 16-50. It appears this lens has had the worst quality control or design problems (likely both) of any lens in recent history. It has a reputation that in order to get an acceptable one, you have to order at least 3. :eek:

Despite hopes that the issues have been resolved, recent purchasers continue to be disappointed.
Posted by Toni Lankerd on November 25, 2008 at 10:00 AM
Sarah....The Pentax 18-55mm, which came with my K10D, works very well for landscape scenes. I prefer my primary lens, though, the Sigma 28-135mm, and use it at least 90% of the time for a variety of subjects.
Posted by Bass Sears on November 25, 2008 at 3:37 PM
John,

Cool chart, a picture really is worth a thousand words! ;-)

Anyone have any experience with the Sigma 10-20? It would seem a great addition to the 18-55 for very wide angle without overlapping the two lenses... gets good reviews on Adorama and seems to be the widest lens for a K10 that's not the Pentax fisheye or the Tamron 10-24, which I can't find much info on.

-- Bass