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06-04-2009, 10:17 AM   #1
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Recommend wide-angle lens for K10D

I currently have a Pentax DA 18-55, but find that for taking a "wide angle" shot of a room, or outdoor activity, etc. it leaves something to be desired. Either that or I need some advice on how to get "everything" into the picture.

Anywho, I am considering a fixed length lens to add to the not very large collection and would appreciate your advices.

06-04-2009, 10:19 AM   #2
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Sigma 10-20.
06-04-2009, 10:44 AM   #3
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QuoteOriginally posted by JHfwp Quote
Sigma 10-20.
This is a good choice.

There's also the Pentax DA 15mm Limited (for a fixed-focal length choice), and the Pentax DA 12-24mm zoom.
06-04-2009, 10:55 AM   #4
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Thanks for the inputs

A related question, based on what I found while googling ...

What is a "super wide angle converter"? What is it's purpose? What are its weaknesses vs strengths, if any?

06-04-2009, 11:01 AM   #5
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I came up with this nifty algorithm to identify items.

Any name containing the name "converter" with a prefix can be translated into:

"Cheap solution for <prefix> that degrades the quality of the end product. A <prefix> converter, is a substitute and compromise that can be used to imitiate a <prefix> end product, but in reality it is always better to get the proper <prefix> gear, even if it cost a bit more."

In this case:

Cheap solution for wideangle that degrades the quality of the end product. A wideangle converter, is a substitute and compromise that can be used to imitiate a wideangle end product, but in reality it is always better to get the proper wideangle gear, even if it cost a bit more.
06-04-2009, 11:03 AM   #6
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QuoteOriginally posted by Zewrak Quote
I came up with this nifty algorithm to identify items.

Any name containing the name "converter" with a prefix can be translated into:

"Cheap solution for <prefix> that degrades the quality of the end product. A <prefix> converter, is a substitute and compromise that can be used to imitiate a <prefix> end product, but in reality it is always better to get the proper <prefix> gear, even if it cost a bit more."

In this case:

Cheap solution for wideangle that degrades the quality of the end product. A wideangle converter, is a substitute and compromise that can be used to imitiate a wideangle end product, but in reality it is always better to get the proper wideangle gear, even if it cost a bit more.
That's what I thought, but when I googled "what is ..." all I found was "buy .... here".
06-04-2009, 11:37 AM   #7
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One more vote for Sigma 10-20.
06-04-2009, 11:54 AM   #8
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Sigma 10-20 is a pretty good lens. But you actually said you were looking for a fixed focal lens. As far as I recall that leaves you with the Pentax 14mm or 15mm primes and nothing else. Which is bigger than your kit lens, but not by a huge amount.

18mm = 77 deg FOV
14mm = 91 deg FOV
10mm = 110 deg FOV

06-04-2009, 12:43 PM   #9
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QuoteOriginally posted by breischl Quote
Sigma 10-20 is a pretty good lens. But you actually said you were looking for a fixed focal lens. As far as I recall that leaves you with the Pentax 14mm or 15mm primes and nothing else. Which is bigger than your kit lens, but not by a huge amount.

18mm = 77 deg FOV
14mm = 91 deg FOV
10mm = 110 deg FOV
Actually, a few millimeters of FL have quite an effect at that level. Going from 18 to 15 is like going from about 28mm to 22mm on a film camera. The 10-20 certainly covers about all you could want.
06-04-2009, 11:39 PM   #10
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There was a heck of a deal here: https://www.pentaxforums.com/forums/photographers-marketplace/59014-sale-pent...2-8-ed-if.html but it may be too late.

If you decide to consider a zoom, I too cast my vote for the Sigma 10-20mm.
06-05-2009, 04:47 AM   #11
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QuoteOriginally posted by Green_Manelishi Quote
I currently have a Pentax DA 18-55, but find that for taking a "wide angle" shot of a room, or outdoor activity, etc. it leaves something to be desired. Either that or I need some advice on how to get "everything" into the picture.

Anywho, I am considering a fixed length lens to add to the not very large collection and would appreciate your advices.
I am going to assume that you do not want a fisheye lens, that give you pretty limited prime choices. There are the Pentax "K" and "A" 15mm f3.5 if you can find one. These are good lenses but rare, and because of that expensive.
Pentax DA 14mm and Pentax DA 15mm. The 15 is brand new, but there have been a few shots posted here with it. Forum member "Sailor" has posted a bunch if you want to see what it can do.

If you want to got to a zoom lens there are many more choices. Several people here have mentioned the Sigma 10-24. There is also the Pentax DA 12-24, and the Tamron 10-24. That rounds out the ultra wide zooms. In adddition there are the Pentax DA* 16-50, and the DA 16-45, the Sigma 15-50, and 17-70, and the Tamron 17-50 if you are looking for more direct 18-55 replacement.

I own the Pentax DA 12-24 and love it. I debated long and hard between the Sigma 10-24 and the Pentax. I'm not sorry at all I decided to go with the pentax, but I think both are very good lenses.

NaCl(hope that helps)H2O
06-05-2009, 11:11 AM   #12
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Well, in fixed focal length probably the Pentax 14mm and 15mm are great choices. But consider the 12-24mm. In my opinion it's almost as good as a prime anywhere you use it within its focal range
06-05-2009, 01:26 PM   #13
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Sigma 17-70, would be well worth checking out. Excellent at all lengths, macro and a very favourable price.. I find it is a great walkabout lens to leave on the camera.
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