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03-16-2009, 06:31 PM   #1
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Location: Fremont, CA
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Tamron SP 28-135mm f/4.0-4.5 adaptall-2 (28A) Test Shots

I bought Tamron SP 28-135mm f/4.0-4.5 adaptall-2 (28A) from Ryan S, who priced it low for me to enjoy this adaptall-2 lens.

Initially, I was not too impressed as not having a lens hood seem to yield picture of flatter contrast. I bought a 67mm 3-stage lens hood, added a Hoya UV filter and tried it again on the weekend. The lens is pretty decent and it has a very usable range. Sharpness is decent. And it allows A aperture if you have the adaptall-2 pk/a adapter. I don't see a lot of discussion on this lens, but I find it a good manual zoom that covers a good focal range. It is on the heavy side and though it has a 1:4 close up, its minimal focusing distance is about 6 feet and I wish it is shorter than that.




some fringing on the water
moderate, I would think







hat's label quite sharp
in pixel peeping



My initial impressions:
  • I love that focal range from 28mm to 135mm, better than 50-135mm or 28-75mm
  • I find the lens focal range good for hiking and portrait.
  • The focus throw is short, about 1/4 turn, and it allows quick focusing.
  • 1:4 close up in the 28mm end is found decent in the center
  • sharpness in good lighting is found great, indoor is perhaps a bit too slow
  • minor zoom creep towards the long end for my copy
  • a bit heavy but easy to handle



Last edited by hinman; 03-19-2009 at 06:31 PM.
03-19-2009, 03:44 PM   #2
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Original Poster
Ryan,

This is your lens. I bump this so that you see how I like it. I like its focal range a lot. The one-touch zoom is NOT bad, but my copy has some zoom creep at the far end such as 80mm +. When the zoom is from 28 to 80mm, I can point the lens down and up and there is no issue. I added a rubber lens hood and an okay UV filter and it seem to improve on contrast.

I have a UV filter on when I test it, CA is moderate and out of all the one-touch zoom, I have to say that I like few SP adaptall-2 lens that I tried.

Thanks,
Hin

Last edited by hinman; 03-19-2009 at 03:51 PM.
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