Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
05-18-2010, 05:42 AM   #1
Senior Member
dinneenp's Avatar

Join Date: Mar 2010
Location: ireland
Photos: Gallery | Albums
Posts: 162
18-200 lens, is it that bad?

A lot of people slate the Tamron AF 18-200 mm F/3.5-6.3 XR Di-II LD Aspherical (IF) Macro.
Most peopple recommend the 18-250Tamron AF 18-250/3.5-6.3 DI II LD ASPHERICAL IF MACRO instead.
What makes the 18-200 so bad/not recommanded?
I'm not bothered with very small issues- most pics are for online, the odd one for printing (20*30cm)

Thinking of swapping 18-55 and 55-300 for one all rounder. I know a lot of people recommend not doing this....


05-18-2010, 06:11 AM   #2
Veteran Member
KjetilH's Avatar

Join Date: Mar 2008
Location: Oslo
Photos: Gallery
Posts: 309
As far as I know, the 18-250 is quite a bit sharper, especially at the shorter focal lengths. The 18-200 is about 35% of the price of the 18-250, though.

Check the tests at SLRgear and compare the resolution charts:
Tamron Lens: Zooms - Tamron 18-250mm f/3.5-6.3 Di II LD Aspherical IF Macro AF (Tested) -!
Tamron Lens: Zooms - Tamron 18-200mm f/3.5-6.3 XR Di II LD Aspherical IF AF (Tested) -!

Photozone also seems to agree:

Last edited by KjetilH; 05-18-2010 at 06:17 AM.
05-18-2010, 07:36 AM   #3
Veteran Member
Marc Sabatella's Avatar

Join Date: Sep 2006
Location: Denver, CO
Photos: Gallery
Posts: 10,686
I'd suggest looking at the sample images in the reviews on this forum and in if you don't know a difference, then don't worry about it. I'd imagine the 18-200 is still at least as good as most superzoom P&S cameras.
05-18-2010, 07:37 AM   #4
GeneV's Avatar

Join Date: Oct 2008
Location: Albuquerque NM
Photos: Albums
Posts: 9,820
QuoteOriginally posted by dinneenp Quote
Thinking of swapping 18-55 and 55-300 for one all rounder. I know a lot of people recommend not doing this....
You will mostly suffer at the long end for that trade, but then again, if you take most of your photos outdoors or in other situations where you can keep the lens stopped down to F:8, you may be very happy with that trade.

I've had the same thoughts about the DA 50-200 vs. the 55-300. There is no doubt that the 55-300 blows its little brother away at <f8. I have both, and I have seen it. However, I've never taken an outdoor shot with the smaller lens (the 50-200 is half the size) that made me spend a lot of thought wishing I had something of higher quality.


  • 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!
af, k-mount, ld, lot, macro, pentax lens, people, slr lens, tamron
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bad Lens = Noise? Vlad Pentax SLR Lens Discussion 17 01-26-2011 01:18 PM
FA 31mm Limited assembled in Vietnam - bad QC or bad luck. Voe Pentax SLR Lens Discussion 64 03-03-2010 05:44 PM
Bad shots from a new lens...... Bokehboy Post Your Photos! 6 07-16-2009 03:03 PM
Tamron Adaptall... Bad lens or bad adapter Okami Pentax SLR Lens Discussion 6 05-01-2008 06:52 PM
Not bad for a beat up old lens !! Stratman Pentax SLR Lens Discussion 0 09-30-2007 03:28 PM

All times are GMT -7. The time now is 08:49 AM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]