Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-26-2013, 08:30 PM   #16
Site Supporter
6BQ5's Avatar

Join Date: Jun 2013
Location: Nevada, USA
Photos: Albums
Posts: 3,064
I have a FA 28-105 f/3.2 and I wrote a review on it. The lens is my #1 because it is sharp, colorful, and practical. AF can be quirky but for a lot less occurrences than you would think. My K-30 will occasionally have difficulty focusing in low light, on the sky, finely detailed textures, etc. Then again, as I have tried more and more lenses I find that every design seems to have trouble focusing on something every now and then. Moving subjects can also be troublesome.

LiveView focusing is slow and methodical but I have never see a screw drive lens go fast in this mode. It is spot on accurate and works well, especially for slow deliberate shots.

I also have a slightly fungus infested FA 28-105 f/4. It's bigger and heavier and not as contrasty as the f/3.2.

Make sure you use a hood with whatever lens you decide on.

12-26-2013, 09:40 PM   #17
Pentaxian
mgvh's Avatar

Join Date: Sep 2010
Location: MD
Photos: Gallery | Albums
Posts: 827
I have this Tamron 24-135 and the Pentax 18-135. That Tamron is really nice, and in general can usually get better pics than the Pentax. But...
  • Physically, Pentax is lighter (405 >< 530g) and shorter (76 >< 80.6mm) and smaller (62 >< 72mm lens)
  • Pentax is weather resistant
  • Tamron is full frame
  • Pentax covers wider: 18mm-24mm
  • Pentax generally has nicer contrast
  • Pentax stronger 24-50mm range (but Tamron catches up as one stops down)
  • Tamron stronger in 65-135mm range (but Pentax catches up as one stops down)
  • In general, Pentax > Tamron when wide open
  • In general, Tamron sharper than Pentax
So, tradeoffs, but for the sake of WR, wider, and lighter/smaller, I almost always use the Pentax 18-135, but I'm keeping the Tamron. If there ever is a FF, the Tamron will be incredible.
12-27-2013, 02:10 AM   #18
Site Supporter




Join Date: Dec 2010
Location: Melbourne
Photos: Albums
Posts: 307
I have a FA 28-105 f/3.2 and I used it on K01. the focus is quite snappy and accurate, being contrast detect. This lens is a bit of a sleeper in my opinion. It has great micro contrast and sharpness is pretty good stepped down a bit. Mind you, it is not prime quality if that is what you are after. In my opinion it has similar IQ to the DA18-135.
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!
awful, k-mount, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
are there any inexpensive lenses that dont suck?? Tad Pentax Q 16 12-27-2013 11:51 AM
Are there any single element K-Mount lenses? TropicalMonkey Pentax SLR Lens Discussion 31 06-28-2013 06:34 PM
Any 50mm f/1.2 lenses out there? Photomaximum Pentax SLR Lens Discussion 29 10-01-2008 01:57 PM
Pentax 50mm lenses...how many versions are out there? JRock Pentax SLR Lens Discussion 6 07-31-2008 04:30 PM
Soft focus lenses, any experience out there? Ole Pentax SLR Lens Discussion 10 06-09-2007 09:48 PM



All times are GMT -7. The time now is 03:38 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