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03-20-2011, 10:52 AM   #91
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I get what your pointing at for sure, and I never expected the overall sharpness of my LTD. I don't know if it was pixel peeping or not, I just expected a bit more, but for sacrificing a bit of focal range the the Tamron 28-75mm Macro seems to have higher IQ (from the pics I've seen).
As does the Tamron 70-200mm Macro. The 28-75 is almost $200 cheaper, and the 70-200 is about $150-200 more than the 18-135.
One of my problems seems to be with the AF, at 18mm it seems to want to back focus a little, but as I zoom to 135, the pics seem to want to back focus... so how in the heck can I use AF fine tune to fix it! It makes one better and the other worse..

03-20-2011, 10:59 AM   #92
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QuoteOriginally posted by Chex Quote
One of my problems seems to be with the AF, at 18mm it seems to want to back focus a little, but as I zoom to 135, the pics seem to want to back focus... so how in the heck can I use AF fine tune to fix it! It makes one better and the other worse..
If you're having that problem, I suggest sending the lens in for calibration, as you're right, it can't be fixed in-camera. They will do a good job getting it up to spec.

On a side note, I think this lens would be well suited with a (not yet existent) Pentax DA 120-400mm 4.5-5.6 WR DC [IF] AL ED. The small overlap would help with the IQ problems at the long end of the 18-135mm. I imagine this is forth-coming as a replacement/upgrade to the DA 55-300mm. We can always hope.

Last edited by jeffshaddix; 03-20-2011 at 01:55 PM.
03-20-2011, 11:05 AM   #93
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yeah I'm going to send it in this week and hope for a speedy return.
Well I think that my future purchases of lenses will be ones that have been out for awhile and reviewed extensively. I wanted a general walk around WR lens.. and this will fit the bill for wet conditions, I'll work on IQ for the rest of them I guess.
03-20-2011, 11:08 AM   #94
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When I got the lens the first thing I did was test it for sharpness on the K-5 and have to say I find it pretty good, even when compared to some of my better lenses.

This one was taken wide open at 135mm, the only processing was a slight colour boost and that's it .. no sharpening at all.

Exposure 0.017 sec (1/60)
Aperture f/5.6
Focal Length 135 mm
ISO Speed 3200




03-20-2011, 11:08 AM   #95
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QuoteOriginally posted by jeffshaddix Quote
I
On a side note, I think this lens would be well suited with a (not yet existent) Pentax DA 120-400mm 4.5-5.6 WR DC [IF] ED. The small overlap would help with the IQ problems at the long end of the 18-135mm. I imagine this is forth-coming as a replacement/upgrade to the DA 55-300mm. We can always hope.
I really hope you are right! That would be awesome!

I've said that 18-135 would be my only zoom, but if this happens..... my LBA will itch me to death if i wont buy it!
03-20-2011, 01:50 PM   #96
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QuoteOriginally posted by the swede Quote
I really hope you are right! That would be awesome!

I've said that 18-135 would be my only zoom, but if this happens..... my LBA will itch me to death if i wont buy it!
Haha, agreed! Let's take it a step further and hope they complete the set: DA 10-20mm 3.5-4.5 WR DC [IF] AL ED.

Ok I know DC isn't necessary on a UWA lens, but for symmetry and completeness sake...
03-20-2011, 02:01 PM   #97
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I would be just as happy if they made a 10-50mm, 50-135mm, 100-300mm WR's. They already have the design for the 50-135 with the DA*50-135.. and it is sealed.. just not WR branded I guess.

If it wasn't for those pesky e-dials, I would pick up an older k-10 or K-x and try to seal it with a clear weather seal gel spray, slap on an IF prime, spray it down mounted on it and see how weather proof.. or water proof.. underwater shots?
03-20-2011, 02:24 PM   #98
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Any WR/DC replacement of the 55-300 would have to be exceptionally good (minimal distortion, good detail, etc) - since the 55-300 is amazing in its own right for such a compact lens with its focal range

03-21-2011, 12:40 AM   #99
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QuoteOriginally posted by jeffshaddix Quote
but for symmetry and completeness sake...
Yes!!! That is my thing!
03-21-2011, 10:34 AM   #100
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I must say I am impressed with the DC auto-focus for sure, the 18-135 is fast and quiet, a huge difference from my 43 Ltd which is no slouch for speed in decent lighting, but very audible.
03-21-2011, 12:08 PM   #101
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QuoteOriginally posted by Chex Quote
I must say I am impressed with the DC auto-focus for sure, the 18-135 is fast and quiet, a huge difference from my 43 Ltd which is no slouch for speed in decent lighting, but very audible.
Me to! Again... they better put it onto more lenses! OR ELSE!!!!
03-26-2011, 07:08 AM   #102
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Two pics @ 135mm f/6,3

03-26-2011, 12:20 PM   #103
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Yes, I think they should remake the FA and DA lenses with the DC motor All priced at current or lower prices I sure could use a "D FA 31mm Ltd."
03-26-2011, 12:56 PM   #104
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Thanks all for posting the photos. From what I see, this lens would do just fine for the purpose for which I would buy it--as an alternative walkaround to the 18-55 or 18-250.
04-06-2011, 09:28 AM   #105
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Just a few snaps i took during the weekend, the lens is so nice for my intended usage, day to day quick snaps. All taken with flash of camera (YN560, Cactus V5)

68mm @ f/5,6



18mm @ f/6,3



31mm @ f/6,3
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