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04-15-2010, 08:49 PM   #46
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QuoteQuote:
rparmar: You might want to view my statement in context to get more meaning from it.
Good point--keeping things in context aids understanding


QuoteQuote:
rparmar:That is a poor justification for using a lens.
Throughout the thread, I give many reasons why I chose the Sigma over the Tokina. But, this is not one of them; this is merely a response to your note on the Sigma's distortion at its widest.

Great Ca control
Excellent build quality
Great colors
10 & 11mm (in a mm precious range, by your own admission)
Excellent Sharpness
No penalty for shooting Pentax mount in the form of price

"Just the facts mam"

04-16-2010, 09:12 AM   #47
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QuoteOriginally posted by Jewelltrail Quote
Great Ca control
Excellent build quality
Great colors
10 & 11mm (in a mm precious range, by your own admission)
Excellent Sharpness
No penalty for shooting Pentax mount in the form of price

"Just the facts mam"
No problem there. There are indeed good reasons to choose one lens or the other. I like reasons. Or even strong feelings.

Price is a good one with the way the DA12-24mm sky-rocketed over here. I was never too impressed with the build, but I only used it on a Nikon... maybe that's it! (Joke!) That said, the Pentax isn't the world's best build either, kind of plasticky and gritty to focus. Anyway, that's about beaten this subject to death.
04-16-2010, 09:53 AM   #48
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guys, let's burry this war hammer,, take our wideangles andd go out and shoot some images....
as you said Robin, we have beaten this subject to death now.

Now OP can go and get DA15

BR
Peter
04-16-2010, 02:46 PM   #49
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Which, What, Huh?, Help

Ok, Ok, there is a lot of argument on this thread about what is the Best(B needed but) wide angle lens. What I wish to find is a wide angle, but not "fish eye" which in my old world of film lenses would have been somewhere around 20mm or maybe 17-18 mm before going fish eye. I do wish for a wider angle FOV but the world of 20 mm film lenses used to be fine so it should be fine for me in digital also. So I ask which of the many lenses discussed here will help me achieve my desired horizontal FOV of around 75 to 80 degrees without breaking my budget. Price is a big factor so I am looking for around $200 and am quite willing to buy a third party lens. Everyones opinion is valuable to me even though they may conflict. I just am having trouble understanding which may actually work for me. Thank You in advance for your help.

04-16-2010, 02:56 PM   #50
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QuoteOriginally posted by kacansas03 Quote
film lenses would have been somewhere around 20mm or maybe 17-18 mm before going fish eye.
Then you are looking at 14mm for the first instance, and 12mm for the second.
04-16-2010, 03:02 PM   #51
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QuoteOriginally posted by SpecialK Quote
Then you are looking at 14mm for the first instance, and 12mm for the second.
The primes are way out of my budget. Don't get me wrong, I love primes lenses and used them a lot on film but for this digital age they are really expensive.
04-16-2010, 04:41 PM   #52
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The zooms are also out of your budget. Only lens I know that comes close to that FOV for $200 is the Zenitar 16mm - technically a fisheye, but on APS-C, only barely so, and on digital it's pretty easily correctable. I guess the DA16-45 would be the other lens to check out, although it's rather longer and a bit more expensive.
04-16-2010, 04:44 PM   #53
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QuoteOriginally posted by Marc Sabatella Quote
The zooms are also out of your budget. Only lens I know that comes close to that FOV for $200 is the Zenitar 16mm - technically a fisheye, but on APS-C, only barely so, and on digital it's pretty easily correctable. I guess the DA16-45 would be the other lens to check out, although it's rather longer and a bit more expensive.
Really!! I was dismissing the Zenitar because I thought it too expensive. Thank You for the tip and I will check that lens out right after typing this post. Thanks again!

04-17-2010, 01:10 PM   #54
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PTlens and Zenitar

I am sold on using this lens for my wide angle needs. I also am sold on using PTlens to correct the images if needed. Wow am I glad I checked out this thread.
04-20-2010, 06:20 PM   #55
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There has been a lot of very valuable input here. Never thought my original post would generate so much discussion. Thanks for all the input. I'm no closer to choosing my wide angle but now I will make a much more informed descission.
04-20-2010, 07:18 PM   #56
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When I was looking for the wide zoom, I considered both sigma and DA 12-24mm. The price differentials were not that great at that time (only half of the current price), so it was an easy decision for me. On my recent trips to Asia and other places, I used the DA12-24mm a lot and the majority of shots are in the longer end (since most shots include members of my family). Another advantage of the DA12-24mm is that I can use it pretty much wide open especially at night with flash.

Anyway, if you are looking for a wide zoom you will not regret with either one of the two choices; however, YMMV depending on your application. OTOH, it is almost a no brainer if you are tight on budget.
04-21-2010, 12:46 AM   #57
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I have opted for the DA 10-17 fisheye after much research and playing around with that lens as well as the Sigma 10-20mm f/3.5 and the Pentax 12-24.

In the end, for me... it just came down to the fisheye will give me the widest FOV and I will enjoy using it more than the other two.

I would NOT recommend the fisheye if you are going to be shooting architecture or anything else with a lot of straight lines as the distortion will be very obvious (unless that is what you are going for).

I liked the Sigma 10-20 3.5 quite a lot as well and I would have bought that if I decided I just wanted a super wide angle lens... but the DA 10-17 is the lens that makes those "WOW" photos.

For example:
04-21-2010, 01:35 AM   #58
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I notice the difference from 18mm of kit lens to 16mm of 16-45mm..
Just how different is the 10mm to 12mm to 15mm?
04-21-2010, 01:24 PM   #59
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QuoteOriginally posted by rustynail925 Quote
I notice the difference from 18mm of kit lens to 16mm of 16-45mm.. Just how different is the 10mm to 12mm to 15mm?
The diagonal field of view is, in degrees:

18: 77.4
16: 84.1
15: 87.7
14: 91.7
12: 100.5
10: 110.5

Roughly 7 degrees more for each 2mm, increasing to 10 degrees at the wide end.

Last edited by rparmar; 04-22-2010 at 01:10 PM.
04-22-2010, 12:57 PM   #60
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QuoteOriginally posted by rparmar Quote
The diagonal field of view is, in degrees:

18: 77.4
16: 84.1
15: 87.7
14: 91.7
12: 100.5
10: 110.5

Roughly 7 degrees more for each 2mm, increasing to10 degrees at the wide end.
THank You rparmar for that reference for angles of view or FOV for each of the focal lengths that we usually see on wide angle lenses and wide angle zoom lenses. As I have said elsewhere you are a real asset to this community for Pentax users in addition to being a leader in the Millionth contest.
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