Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-02-2012, 06:59 PM   #1
Senior Member
misbehave's Avatar

Join Date: May 2012
Posts: 102
Do I need the DA* 16-50?

Hello all,

I am about to make my purchase on a K-5 with the DA 18-135mm WR kit and thinking about getting the DA* 16-50mm lens so that I can have some wider angle option when I need it and I have already read from many reviews that the DA* 16-50mm seems to have excellent image quality than the DA 18-135mm.
My question is do I really need the DA* 16-50mm?
Is 16mm not much wider than 18mm, and the image quality on the DA* 16-50mm isn't that big of a difference over the DA 18-135mm?

06-02-2012, 07:22 PM   #2
Site Supporter
jatrax's Avatar

Join Date: May 2010
Location: Oregon
Photos: Gallery | Albums
Posts: 10,288
QuoteOriginally posted by misbehave Quote
Is 16mm not much wider than 18mm, and the image quality on the DA* 16-50mm isn't that big of a difference over the DA 18-135mm?
At the wide end every mm does make a difference. At the long end, no, 2mm would never be noticed. Not sure what you are basing your IQ evaluation on but I would disagree that it is similar in those two lenses. I do not have the 18-135 so perhaps my opinion has no basis but I do have the 16-50 and it has outstanding IQ. The reviews I have read on the 18-135 seem to indicate it is slightly better than the kit 18-55 but not in DA* range.

That said it really depends on what your requirements for IQ are. If the 18-135 is acceptable then no I do not think you need the 16-50. The only advantage of the 16-50 is better IQ, constant f/2.8 and 2mm of wide end. Unless you really need the better IQ then get an UWA like the Pentax or Tamron 12-24 or the Sigma 10-20 to compliment your 18-135. That way you do not duplicate the range so much.

If you are going to get the DA*16-50 then compliment it with the DA*50-135 to cover the same range as the 18-135.
06-02-2012, 07:31 PM   #3
gtl
Veteran Member




Join Date: Feb 2010
Posts: 349
If you can hold off I suggest waiting for the limited zoom that's on the lens road map.
06-02-2012, 08:27 PM   #4
Senior Member
misbehave's Avatar

Join Date: May 2012
Posts: 102
Original Poster
QuoteOriginally posted by gtl Quote
If you can hold off I suggest waiting for the limited zoom that's on the lens road map.
I am planning to make my purchase in July after the K-30 become available in US.
Want to see if the K-5 will be cheaper or not by then.
What limited zoom lens is on the way?

06-02-2012, 08:30 PM   #5
Senior Member
misbehave's Avatar

Join Date: May 2012
Posts: 102
Original Poster
QuoteOriginally posted by jatrax Quote
At the wide end every mm does make a difference. At the long end, no, 2mm would never be noticed. Not sure what you are basing your IQ evaluation on but I would disagree that it is similar in those two lenses. I do not have the 18-135 so perhaps my opinion has no basis but I do have the 16-50 and it has outstanding IQ. The reviews I have read on the 18-135 seem to indicate it is slightly better than the kit 18-55 but not in DA* range.

That said it really depends on what your requirements for IQ are. If the 18-135 is acceptable then no I do not think you need the 16-50. The only advantage of the 16-50 is better IQ, constant f/2.8 and 2mm of wide end. Unless you really need the better IQ then get an UWA like the Pentax or Tamron 12-24 or the Sigma 10-20 to compliment your 18-135. That way you do not duplicate the range so much.

If you are going to get the DA*16-50 then compliment it with the DA*50-135 to cover the same range as the 18-135.
Thank You for your advice. I have a question though, does Tamron or Sigma make WR lens too? I am only going to buy WR lens cause I live in Seattle and it rains here constantly as if someone above forgot to turn off the shower.
I like shooting outdoor a lot so WR lens is a must for me.
06-02-2012, 09:02 PM   #6
DAZ
Veteran Member
DAZ's Avatar

Join Date: Sep 2006
Location: Everett, WA USA
Photos: Gallery
Posts: 700
At 18mm the AOV is 66.6 deg, at 16mm the AOV is 73 deg, that is 6.3 deg more and is noticeable. For comparison 135mm is 10 and 138 would be 9.8, imperceptible.


I to live in the Seattle area. I have the 16-50 and 2 weeks ago I was taking photos in weather so sloppy that only a frog could like it. It was windy and rainy all day with water dripping off of everything. The DA* 16-50 is reported to have a little better weather resistance than just a WR lens. You also pay more for it. It was a real torture test for the K5 and the DA* 16-50.


DAZ
06-02-2012, 09:26 PM   #7
Veteran Member
selar's Avatar

Join Date: Jul 2007
Location: Sydney, Australia
Photos: Gallery | Albums
Posts: 2,035
If you are into wide get the Sigma 8-16mm zoom, nothing wider exists!
06-02-2012, 09:56 PM   #8
Veteran Member
mysticcowboy's Avatar

Join Date: Apr 2009
Location: port townsend, wa
Photos: Albums
Posts: 968
The 18-135 is better than a kit lens and is WR. Get it for the versatility. It's more than good enough for most purposes, and there will always be times when a lens like that is handier than carrying multiple lenses. Shoot for at least 6 months with the first lens; then you'll know better what other lens you need. When you bump up against the limits of the lens multiple times, you will know what to get. It may be the 16-50. It may be a prime, a macro or even a longer telephoto. Until you decide what you want to shoot, all you'll know from a forum is what kind of lens other people like. I bought a Pentax 16-50 and a Tamron 17-50 for my K-5, shot both for a week and sent the Pentax lens back. I preferred the Tamron. The next guy might find just the opposite. But until you get a feel for what you really need in a lens, you can spend a lot of money on something that may not suit your shooting style.


Last edited by mysticcowboy; 06-02-2012 at 10:04 PM.
06-02-2012, 10:31 PM   #9
Site Supporter
rvannatta's Avatar

Join Date: Aug 2007
Location: Apiary, Oregon
Photos: Gallery
Posts: 1,171
QuoteOriginally posted by misbehave Quote
Hello all,

I am about to make my purchase on a K-5 with the DA 18-135mm WR kit and thinking about getting the DA* 16-50mm lens so that I can have some wider angle option when I need it and I have already read from many reviews that the DA* 16-50mm seems to have excellent image quality than the DA 18-135mm.
My question is do I really need the DA* 16-50mm?
Is 16mm not much wider than 18mm, and the image quality on the DA* 16-50mm isn't that big of a difference over the DA 18-135mm?
I've used the DA*16-50 as a default lens of choice since 2007. It's a little big for the built in flash on the K-5, producing a dark shadow in
the bottom of photos at the widest settings. I'm hopeful that the the longer/taller flash unit on the K-30 will solve this issue.
06-02-2012, 10:39 PM   #10
Senior Member
misbehave's Avatar

Join Date: May 2012
Posts: 102
Original Poster
QuoteOriginally posted by DAZ Quote
At 18mm the AOV is 66.6 deg, at 16mm the AOV is 73 deg, that is 6.3 deg more and is noticeable. For comparison 135mm is 10 and 138 would be 9.8, imperceptible.


I to live in the Seattle area. I have the 16-50 and 2 weeks ago I was taking photos in weather so sloppy that only a frog could like it. It was windy and rainy all day with water dripping off of everything. The DA* 16-50 is reported to have a little better weather resistance than just a WR lens. You also pay more for it. It was a real torture test for the K5 and the DA* 16-50.


DAZ
Hi there.
Nice to another Pentax user in the Seattle area.
Did you get your K5 locally? Cause of all the stores here that sell cameras, I can only find one in Bellevue that carries Pentax. It's hard to find a place here so that I can get a feel of what the camera like in my hands.
06-03-2012, 12:53 AM   #11
Veteran Member
sterretje's Avatar

Join Date: Dec 2008
Location: Roodepoort, South Africa
Photos: Gallery | Albums
Posts: 3,534
As you have already settled for the 18-135, I would wait with any other lenses to see what your needs are. You might find that 18mm is plenty wide for your needs.

With regards to the DA Ltd zoom, do a search for 'Pentax roadmap' (result e.g. Pentax Lens Roadmap for 2012-2013 - Pentax Camera News & Rumors - PentaxForums.com with a link to a PDF). I doubt however that it will be WR and it will be around 20-40mm. There will also be a DA wide zoom (possibly something like 12-35 although the roadmap one ends before 30mm) and there is a patent for a 12-35WR. We need to see what materializes.

Personally the main reason why I want something ultra-wide (wider than 18) is for architecture (indoors and outdoors) and in that case I will go more extreme than 16mm (12-24, 10-20).
06-03-2012, 03:45 AM   #12
Loyal Site Supporter




Join Date: Mar 2009
Location: Southern Indiana
Photos: Gallery
Posts: 14,955
A lot depends on what you shoot. The 16-50 is definitely faster with regard to aperture and has nice quality throughout, although at wide angles (16 to 20mm) you do best to stop down to f4 to get rid of vignetting. The 18-135 is nice in this range too, though. If the 18-135 has a weakness, it is mostly at the long end, where the edges getting pretty soft. Between 18 and 70, it seems to be pretty good. The real question is which you would miss more -- the 50-135 range, or the extra stop of light gathering ability. Also, the 16-50 is a lot bigger lens, so factor that in too.
06-03-2012, 08:22 AM   #13
Veteran Member
mysticcowboy's Avatar

Join Date: Apr 2009
Location: port townsend, wa
Photos: Albums
Posts: 968
QuoteOriginally posted by misbehave Quote
Hi there.
Nice to another Pentax user in the Seattle area.
Did you get your K5 locally? Cause of all the stores here that sell cameras, I can only find one in Bellevue that carries Pentax. It's hard to find a place here so that I can get a feel of what the camera like in my hands.
I'm also in the Seattle area. What store in Bellevue sells Pentax? I've gotten some used lenses from Jim's Camera in the U district. Mostly I use B&H and Adorama.
06-03-2012, 10:16 AM   #14
Senior Member
misbehave's Avatar

Join Date: May 2012
Posts: 102
Original Poster
QuoteOriginally posted by mysticcowboy Quote
I'm also in the Seattle area. What store in Bellevue sells Pentax? I've gotten some used lenses from Jim's Camera in the U district. Mostly I use B&H and Adorama.
I think the place is called "Ritz & Wolf Camera West".
You will find it if you search it on Google. That was how I found the store in the first place. I was on their website they have the K-5 in stock, not sure if they really carry it in the actual store or if it is just another online only deal. I have yet to check out that place in person.
06-03-2012, 10:32 AM   #15
Veteran Member
mysticcowboy's Avatar

Join Date: Apr 2009
Location: port townsend, wa
Photos: Albums
Posts: 968
QuoteOriginally posted by misbehave Quote
I think the place is called "Ritz & Wolf Camera West".
You will find it if you search it on Google. That was how I found the store in the first place. I was on their website they have the K-5 in stock, not sure if they really carry it in the actual store or if it is just another online only deal. I have yet to check out that place in person.
Thanks!
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!
16-50mm, 18-135mm, camera, da, da*, image, pentax help, photography, quality
Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -7. The time now is 05:18 AM. | See also: NikonForums.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