Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-14-2013, 04:37 PM   #1
Junior Member




Join Date: Sep 2012
Posts: 34
Sigma 17-50mm EX f2.8 or Sigma 24-70mm EX f2.8

Trying to decide on which one of these to get. I am going to get the Sigma 10-20mm also as I want something for landscapes but i can't decide on which one of these lens to get. I want a lens with a f2.8 that is sharp and be able to use as a walk around lens for most of my pictures. Going to Paris and Greece soon and want a nice everyday lens. But I also like taking pictures of food and would like a lens with good bokeh in the future for our baby. I may be asking a lot but I considered the Pentax 16-50mm f2.8 but I am kinda scared after most reviews. Not to mention with Sigma its a 10 year warranty vs Pentax 2 yr. Any suggestions would be great.

02-14-2013, 04:45 PM   #2
Forum Member




Join Date: May 2012
Location: Antigonish, Co. NS, Canada
Photos: Gallery
Posts: 60
I bought a Tamron 17-50mm f2.8 a couple weeks ago. In the reviews it fared quite well against the Pentax and the Sigma
02-14-2013, 06:13 PM   #3
Senior Member
BethC's Avatar

Join Date: Feb 2008
Location: Pennsylvannia
Photos: Albums
Posts: 289
I'll be watching this thread closely because I'm looking to replace a cheap Sigma 28 - 70 that I bought a few years ago. I'm not happy with it, but you get what you pay for. I'm considering the Pentax 16 - 50, but also considered the Tamron that Jpaulb posted about.

You can read what others said on my thread because quite a few chimed in and offered suggestions on lenses in this range.

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/215237-not-hap...-what-get.html
02-14-2013, 06:45 PM   #4
Senior Member




Join Date: May 2010
Location: Montreal
Posts: 197
I had a Sigma 24-70mm f2.8 (pre-HSM version) for a while,

after getting used to having a 18-50mm as a walk-around lens,
I quickly realised that 24mm was just not wide enough for me.

I also tried a couple of Tamron 17-50mm f2.8 over the last few years,
front/back focus issues in both, zoom ring failure in one and overall
lower build quality/fit/handling than what I was used too.

Gave up on that model lens,
too bad because it seems like very good optics but not packaged properly,
it's too 'hit or miss' hoping to get a good copy I find.


Last edited by mlatour; 02-14-2013 at 09:53 PM.
02-14-2013, 06:51 PM   #5
Pentaxian




Join Date: Sep 2009
Location: Southern California
Photos: Gallery | Albums
Posts: 3,181
I would be considering either the Tamron 28-75/2.8 or the DA17-70/4. I currently have the DA*16-50 which is better than either of those (although the Tamron is pretty good).

As far as SDM failure, I won't be happy if it occurs, but honestly I have other risks in life which are not only much more serious, but also more probable to occur, so I've decided to just get the lenses I need and make good use of them.
02-14-2013, 07:03 PM   #6
Veteran Member
stormtech's Avatar

Join Date: Jan 2011
Location: In the boonies (NW Penna)
Photos: Gallery | Albums
Posts: 5,670
Why is this discussion in the K-5 section and not the lens section?
02-14-2013, 07:54 PM   #7
Pentaxian
Bob from Aus's Avatar

Join Date: Jul 2011
Location: Australia
Photos: Gallery
Posts: 1,085
I have an excellent copy of the sigma 17-50 and it is much much better than I had expected. My sigma 10-20 is gathering dust. My favorite landscape lens is the pentax 50-135. I would only have a handful of landscapes I have taken with the 10-20 that I think is any good. I use my fisheye quite a bit within closed spaces, forests or up close. I find I can manage curved lines better than distorted corners.from a ultra wide angle.
02-14-2013, 08:23 PM   #8
Site Supporter
SpecialK's Avatar

Join Date: Dec 2006
Location: So California
Photos: Gallery
Posts: 14,848
For a single-lens option, I found 50mm too short and 24mm not wide enough, so I went with a 17-70. Not quite the IQ of the two your are considering. Of course, it depends what you shoot.

02-14-2013, 11:29 PM   #9
Forum Member
peos99's Avatar

Join Date: Jul 2012
Location: Stockholm, Sweden
Posts: 53
I bought the Tamron 17-50 f2.8 to replace My 18-55 kit lens, but i must spy that i am not happy with it.
Poor build quality, different results all the time, no sharpness, strange shadows. But maybe i have to calibrate it or something?
I later bought the Pentax 18-135 and i must say that i am more happy with that lens. Good pictures all the time. Guess the Tamron is better in dark conditions but otherwise i don't see any benefits with the Tamron.

Now i am aiming for a Sigma 70mm f2.8 Macro :-)
02-22-2013, 06:38 PM   #10
Forum Member




Join Date: May 2012
Location: Antigonish, Co. NS, Canada
Photos: Gallery
Posts: 60
Here is a picture I took as a JPEG with the 400$ Tamron 17-50 & the *ist DL. I wonder if that picture would be twice as good if I used the 800$ Sigma?



_IGP4833 | Flickr - Photo Sharing!
02-22-2013, 07:32 PM   #11
Forum Member




Join Date: May 2012
Location: Antigonish, Co. NS, Canada
Photos: Gallery
Posts: 60
QuoteOriginally posted by BethC Quote
I'll be watching this thread closely because I'm looking to replace a cheap Sigma 28 - 70 that I bought a few years ago. I'm not happy with it, but you get what you pay for. I'm considering the Pentax 16 - 50, but also considered the Tamron that Jpaulb posted about.

You can read what others said on my thread because quite a few chimed in and offered suggestions on lenses in this range.

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/215237-not-hap...-what-get.html
These threads remind me of the oil threads in the motorcycle forms or the archery forums, which equipment is better.
When I was living in Germany I had a business selling hunting & fishing trips to Canada. Due to the bureaucracy in Germany I never bothered to get a fishing or hunting licence. A large number of my customer were wild about bow hunting so I hung around an archery club and got totally confused with what was better. During a business trip to Canada I went to LaBaron in Ottawa and explained to a salesman what I wanted to do and that I had absolutely no idea about archery. What would you suggest? 30 minute later after measuring how long my pull was and many questions, he put together a complete setup which cost about 400$, He said, if you didn't like the sport then I was not out a lot of money.
Back in Germany everyone except my teacher Bertram ( 7 times Bavarian champion) joked about my toy archery set. While many of the member were in the club house comparing equipment and drinking bier I was out trying to hit the target. Bertram talked finally me into entering a 3D competition, as usual he won the gold medal, I blew it came home with silver.
He told me "It is not the equipment, it is the person behind the equipment."

Last edited by jpaulb; 02-22-2013 at 07:42 PM.
02-22-2013, 08:25 PM   #12
Senior Member




Join Date: May 2010
Location: Montreal
Posts: 197
Both my Tamron 17-50mm were actually decent / very good when I first got them,
problems arose after a few days/weeks/months of using them almost everyday
in some moderate/rough environments.
Loose/worn internals?, ff-bf focus/sharpness became inconsistent thru the range etc.

My Sigma 18-50mm (see sig) is still going strong after 2.5 years in the same conditions.
Sent in for minor calibration once while I had one of the Tamron's as a back-up
and still shows no sign of wear after all this time in rough service.

In this case what did the extra $ get me:

much better pics = no
better build quality and performance consistency over time = yes

As mentionned, it's too bad because I think the optics of the Tamron lens
are very good, it's just the mechanical package surrounding it seems cheaply done.

Last edited by mlatour; 02-22-2013 at 10:03 PM.
02-23-2013, 03:23 AM   #13
Site Supporter




Join Date: Jan 2011
Posts: 2,354
+1 for the Sigma (17-50). Not sure why but I prefer Sigmas over Tamrons.
02-27-2013, 04:14 AM   #14
Veteran Member




Join Date: Jan 2009
Location: Budapest
Posts: 821
QuoteOriginally posted by jpaulb Quote
Here is a picture I took as a JPEG with the 400$ Tamron 17-50 & the *ist DL. I wonder if that picture would be twice as good if I used the 800$ Sigma?
Of course!! And it would be 5x as good if captured with K5IIs! Didn't you know??
See, your toy archery set was only good for silver, with more expensive set than your master you could have won gold

02-27-2013, 04:26 AM   #15
Forum Member




Join Date: May 2012
Location: Antigonish, Co. NS, Canada
Photos: Gallery
Posts: 60
QuoteOriginally posted by simico Quote
Of course!! And it would be 5x as good if captured with K5IIs! Didn't you know??
See, your toy archery set was only good for silver, with more expensive set than your master you could have won gold

You are right about the *ist DL vs K5iis; but if I believe that when I would be looking for one of them instead of better suction cups for my toy bow.
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!
camera, dslr, f2.8, k-5, k-5 ii, k-5 iis, k5, lens, pentax, pentax k-5, pictures, sigma, sigma 24-70mm
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sigma 24-70mm F2.8 EX DG Macro or Tamron 28-75mm F2.8 AF XR Di LD Macro for KR ? ajaya Pentax SLR Lens Discussion 9 12-05-2012 11:30 PM
SMC Pentax-D FA 50mm F2.8--VS.--Sigma 70mm F2.8 EX DG, on Macro and Portrait ndhonghai Pentax K-5 6 10-02-2012 01:12 AM
Wanted - Acquired: Sigma 17-50mm f2.8 EX DC HSM -or- 24-70mm f2.8 EX DG HSM AirBoss Sold Items 8 05-20-2012 06:52 AM
Sigma 24-70mm F2.8 IF EX DG HSM - VS - Sigma 24-70mm F2.8 EX DG Macro Braciola Pentax SLR Lens Discussion 2 10-15-2010 04:54 AM



All times are GMT -7. The time now is 06:32 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