Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
05-26-2010, 02:10 PM   #61
Veteran Member
Pentaxor's Avatar

Join Date: May 2009
Location: Vancouver, B.C.
Photos: Gallery
Posts: 6,513
QuoteOriginally posted by audiobomber Quote
I'm not sure where that comes from. Photozone shows they have virtually identical resolution at 16mm (suprising) and the 16-45 is well ahead at 24mm (not surprising).
I concur about the IQ at 24mm. the DA12-24 is quite weak at that focal length, though it's CA control is at it's best.

05-26-2010, 02:57 PM   #62
Pentaxian




Join Date: Feb 2010
Location: Eureka, CA
Photos: Gallery | Albums
Posts: 1,938
QuoteOriginally posted by audiobomber Quote
Photozone shows they have virtually identical resolution at 16mm (suprising) and the 16-45 is well ahead at 24mm (not surprising).
"Virtually identical" might be putting it a bit too strong. If the Photozone tests can be trusted, the 16-45 is sharper at the center at 16 than the 12-24, but not nearly as sharp toward the borders--an important difference, particularly in a wide angle lens, where corner to corner sharpness can be critical. The 16-45 is better at 24, though whether it is "well ahead" depends on the aperture. At f4, the 16-45 does enjoy a clear advantage. But at f8, that advantage is minor, particularly toward the borders, and there's virtually no difference at f11.

In "real world use," I've only noticed a slight fall off in sharpness in the 12-24 when shooting at the long end of the lens.
05-27-2010, 08:22 AM   #63
Pentaxian
audiobomber's Avatar

Join Date: May 2008
Location: Sudbury, Ontario
Photos: Albums
Posts: 6,667
QuoteOriginally posted by northcoastgreg Quote
"Virtually identical" might be putting it a bit too strong. If the Photozone tests can be trusted, the 16-45 is sharper at the center at 16 than the 12-24, but not nearly as sharp toward the borders--an important difference, particularly in a wide angle lens, where corner to corner sharpness can be critical.
I retract the "virtually identical" statement. I was actually looking at 12mm. If you interpolate between the 12 and 18mm focal lengths measured by Photozone, it looks like the 16-45 is sharper in center and nearly as sharp toward the borders.

QuoteOriginally posted by northcoastgreg Quote
The 16-45 is better at 24, though whether it is "well ahead" depends on the aperture. At f4, the 16-45 does enjoy a clear advantage. But at f8, that advantage is minor, particularly toward the borders, and there's virtually no difference at f11.
If you compare at F11, even the kit lens is in play.
06-02-2010, 08:09 PM   #64
Veteran Member
kalison's Avatar

Join Date: May 2010
Location: Utah
Posts: 376
Original Poster
Its official

Well, I have been shooting like crazy with my K7. I even picked up the 18-55 WR and 50-200 WR just as cheap come-alongs to my bad weather season this year... cant wait for all the thunderstorms and tornadoes!

I will say, that the 18-55 WR is really not bad, I place it above all other kit lenses in the 18-55 range in terms of features and build quality, seriously... dedicated focus ring for even the kit lens?! I place canon a SMIDGE above in sharpness, and below that, the nikon 18-55. Overall though, if I were to choose... Pentax 18-55 WR.

The 16-45 still blows me away. I just cant believe how well this compares to my 17-40L. Its build may not be up there, but the optics are just astounding for the price.

However, I am now making the full switch. So gear will be sold. I will probably be getting rid of the 16-45 to help fund a new Prime (tough choice to make, but I have full faith now in Pentax optics that I won't regret going to primes as my main form of glass). I think I have decided on the FA 31... but I still keep going back and liking the DA 35 Macro. I know its not as fast, but I really like the idea of being able to get up close to small things when I see them and capture all the little bitty details. Not saying you can't get wonderful detail from the FA 31, but the min focus distance I feel helps for my DA 35 choice.

I have also got a few manual lenses in. Which are just fun to play with, I think I have about 4 now. They don't resolve as well as the made for digital lenses, but they arent dull... they give me a kinda old school feeling... where they are kinda soft yet have the detail. Not sure how to explain it. I love the pictures I get out of them. I will be keeping them for a while.

Not sure if I will end up keeping both the kit lenses, but I know that I have bad weather coming up... and I want to have something. I think for sure the 50-200 will go back, its okay.... but even for the price I am not too impressed with it. The 55-300 seems like a nice one to have, but its not WR. Again though... I am not sure. Anyone recommend the 60-250 or have other recommendations? Since the begining I have had my heart set on the 70-200 2.8 from Tamron. But, I am open to suggestions.

So yeah, I wanted to thank everyone for their input and support! I hope to get my hands on a limited prime within the next couple weeks (friggin real life sucks ).

06-02-2010, 09:23 PM   #65
Site Supporter
SpecialK's Avatar

Join Date: Dec 2006
Location: So California
Photos: Gallery
Posts: 14,775
The Pentax 55-300 impressed me as an IQ upgrade from the Pentax 50-200 which showed its limits on the K20. I recently got the Tamron 70-200 that has much better IQ still, at 2X+ the cost and about 4X the size and weight :-)
06-02-2010, 09:31 PM   #66
Veteran Member
kalison's Avatar

Join Date: May 2010
Location: Utah
Posts: 376
Original Poster
QuoteOriginally posted by SpecialK Quote
The Pentax 55-300 impressed me as an IQ upgrade from the Pentax 50-200 which showed its limits on the K20. I recently got the Tamron 70-200 that has much better IQ still, at 2X+ the cost and about 4X the size and weight :-)
Yeah, I understand its a big and heavy... but the IQ tests and sharpness on all focal lengths (except 135 for some reason, it dives a little). Wide open to f11 seems to be sharp as a tack. 2.8 across the focal range also entices me. Even before I got my Canon 70-200L F4 I considered it (Yeah, I know there is a 2.8 version too, but its more than twice the price and twice the weight of the F4 version), in the end the F4 was lighter and costed just under 700 so it was still cheaper. From tests I saw, the Tamron was even better than my 70-200L... but at the cost of construction.

To me, it looks like a pretty nice deal even for twice the cost of the 55-300.

Do you have an samples?
06-03-2010, 10:07 AM   #67
Site Supporter
SpecialK's Avatar

Join Date: Dec 2006
Location: So California
Photos: Gallery
Posts: 14,775
QuoteOriginally posted by kalison Quote
Yeah, I understand its a big and heavy... but the IQ tests and sharpness on all focal lengths (except 135 for some reason, it dives a little). Wide open to f11 seems to be sharp as a tack. 2.8 across the focal range also entices me. Even before I got my Canon 70-200L F4 I considered it (Yeah, I know there is a 2.8 version too, but its more than twice the price and twice the weight of the F4 version), in the end the F4 was lighter and costed just under 700 so it was still cheaper. From tests I saw, the Tamron was even better than my 70-200L... but at the cost of construction.

To me, it looks like a pretty nice deal even for twice the cost of the 55-300.

Do you have an samples?

Here's a few (they will move in a few days):

http://i133.photobucket.com/albums/q78/KylePix/100516-5891Squirrel.jpg

http://i133.photobucket.com/albums/q78/KylePix/100518-6026BikeScooter.jpg

http://i133.photobucket.com/albums/q78/KylePix/100515-5660SeaFuryTaxi.jpg

Last edited by SpecialK; 06-03-2010 at 10:18 AM.
06-03-2010, 11:13 AM   #68
Veteran Member
kalison's Avatar

Join Date: May 2010
Location: Utah
Posts: 376
Original Poster
Yowza!

06-03-2010, 08:24 PM   #69
Veteran Member
kalison's Avatar

Join Date: May 2010
Location: Utah
Posts: 376
Original Poster


The kit lens can resolve impressive detail. I may have to say its better than all other 18-55 kit glass I have ever used.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
canon, glass, k-mount, k7, kit, lenses, money, pentax, pentax lens, recommendations, slr lens, street, tamron
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Professional looking to switch to Pentax K-7. Guidence and suggestions please. King_Boru Pentax DSLR Discussion 21 11-16-2009 01:39 PM
Pentax glass vs Canon kmanlaker Pentax SLR Lens Discussion 38 08-29-2008 02:00 PM
Pentax glass versus 3rd Party Glass??? rdrum76 Pentax SLR Lens Discussion 1 11-04-2007 04:02 PM
Autumn colors - old glass is a good glass andrei46 Post Your Photos! 5 10-26-2007 09:35 AM
Yet another defector from DPR BarneyCG Welcomes and Introductions 3 11-29-2006 11:58 AM



All times are GMT -7. The time now is 02:51 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top