Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-18-2010, 06:32 PM   #1
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Travel Lens Final Decision : Pentax 17-70 SDM Vs Sigma 18-250 HSM

Ok im about to pull the trigger on one or the other.

I like the Pentax because its constant F4.

I like the Sigma because of the zoom range and I hear the HSM is superior to SDM.

Anyone else care to share their thoughts?

02-18-2010, 06:47 PM   #2
Ole
Administrator
Ole's Avatar

Join Date: Sep 2006
Location: Copenhagen, Denmark
Photos: Gallery | Albums
Posts: 3,881
About 85% to 90% of my travel photos are taken at f=70mm or shorter. If that's of any help!

HSM vs SDM - I wouldn't make that a deciding factor. It's about which focal length you need, and the max. aperture.

You could also consider the 17-70 plus an inexpensive telezoom.
02-18-2010, 07:09 PM   #3
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
I want to travel light and minimise the lenses I'm carrying.
02-18-2010, 08:25 PM   #4
hcc
Pentaxian
hcc's Avatar

Join Date: Nov 2009
Location: Brisbane, Australia
Photos: Gallery | Albums
Posts: 3,531
I think that the key issue is: what do you like to shoot? Do you need the 70-250mm range ?

When I travel with a single lens on the boy, I use the Pentax 18-250mm. The Sigma 18-250mm HSM is a nice substitute: I tried it. If it was for myself, I would take the Sigma 18-250mm HSM because I like to have the 70-250 mm range.

Hope that it may help ...

02-18-2010, 08:57 PM   #5
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
Well i'm going through Europe and Egypt so mostly scenery and people.

The concern I have as I already have the Sigma 17-70 (which is a decent lens) However I find that the 17-70 is annoying when using the popup flash as its front element half obstructs it.

Where as I understand the Pentax 17-70 doesn't have this issue.
02-18-2010, 09:23 PM   #6
Pentaxian
Clicker's Avatar

Join Date: May 2008
Photos: Gallery
Posts: 3,241
I would take the 18-250 BUT when you're doing the markets (Egypt) and some of the interiors, you'll need a fast wide prime/zoom.
02-18-2010, 10:09 PM   #7
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
Yer I've got an FA50mm 1.4 (which is @ Pentax Japan been repaired as we speak)

I am debating whether or not to take my 10-17 Fisheye though lol.
02-19-2010, 12:05 AM   #8
Veteran Member




Join Date: Sep 2006
Photos: Gallery
Posts: 5,713
QuoteOriginally posted by hcc Quote
I use the Pentax 18-250mm.
That'd be my choice lens for travel. I've seen several very attractive photos taken with the Pentax 18 - 250. I'm often amazed at it's image quality for a budget lens.

QuoteOriginally posted by C.W Tsorotes Quote
The concern I have as I already have the Sigma 17-70 (which is a decent lens) However I find that the 17-70 is annoying when using the popup flash as its front element half obstructs it.
That's an issue with more lenses than you can imagine.
If you don't have one a shoe mounted flash unit is one of the best investments in the photography world. You don't need the best, or even a dedicated system. Something like this one from Cameta will work just fine.
Just make sure that it's safe or digital before you buy it (I checked, and the one I linked to claims it is)
If you can find one that can be used as a slave it's a nice bonus in the future.

02-19-2010, 02:07 AM   #9
Veteran Member
sterretje's Avatar

Join Date: Dec 2008
Location: Roodepoort, South Africa
Photos: Gallery | Albums
Posts: 3,534
QuoteOriginally posted by C.W Tsorotes Quote
The concern I have as I already have the Sigma 17-70 (which is a decent lens) However I find that the 17-70 is annoying when using the popup flash as its front element half obstructs it.

Where as I understand the Pentax 17-70 doesn't have this issue.
The manual of your camera has a compatibility list (build-in flash versus pentax lens). For the Kx it indicates that there is a problem with focal length smaller than 24mm. You have a K7 (from your signature) so check the manual.

I'll second the idea of getting a small external flash; as 'replacement' for the internal one, it does not even have to have tilt and swivel (although both are useful).
02-19-2010, 03:01 AM   #10
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
I already have an AF540GZ but not keen on taking it travelling.
02-19-2010, 03:21 AM   #11
Veteran Member




Join Date: Oct 2008
Posts: 499
17-70. Unless you like to go birding.
02-19-2010, 03:32 AM   #12
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
I think the 2nd thing is overrall image quality.

Anyone owned or used both to compare?
02-19-2010, 04:01 AM   #13
Senior Member




Join Date: Feb 2010
Photos: Albums
Posts: 264
are they the same size/length?

i dont actually mind carrying extra lenses as long as they're short enough to fit my camera bag's height hehe.
02-19-2010, 07:25 AM   #14
Pentaxian
Clicker's Avatar

Join Date: May 2008
Photos: Gallery
Posts: 3,241
QuoteOriginally posted by C.W Tsorotes Quote
Yer I've got an FA50mm 1.4 (which is @ Pentax Japan been repaired as we speak)

I am debating whether or not to take my 10-17 Fisheye though lol.
You'll end up taking 18-250, 10-17 and 50 but if you already have a 50-200? there is no need to get the 18-50 but you might want to pack the flash :ugh:

What body are you using? If a Kx or K20 the low light challenge should be fine with those lenses imo.
02-19-2010, 07:27 AM   #15
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
I'm with the K7.

I want to avoid carrying the flash if I have to....
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!
hsm, k-mount, pentax, pentax lens, sdm, sigma, slr lens, travel lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pentax SDM vs Sigma HSM. Which is better? Peter Zack Pentax SLR Lens Discussion 31 07-27-2009 11:00 AM
seriously considering this... Sigma 18-250 HSM OS for Pentax laissezfaire Pentax SLR Lens Discussion 5 04-21-2009 12:34 PM
Final decision - K10D vs K200D gcap74 Pentax DSLR Discussion 43 04-09-2008 03:47 PM
Lens decision: Pentax 16-45 and 50-200 combo OR 18-250? sweetpapa Pentax SLR Lens Discussion 30 12-07-2007 02:12 PM
Sigma HSM compability with Pentax SDM gawan Pentax SLR Lens Discussion 3 08-02-2007 03:14 PM



All times are GMT -7. The time now is 09:39 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