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Cameras, Lenses and Accessories: Discuss Tamron AF18-270mm F/3.5-6.3 Di II VC LD Sample Shots...The following shots were taken hand-held under fairly dim room lights at high ISO using a Canon 40D, and were ...
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Old 15-12-2008, 16:33   #1 (permalink)
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Tamron AF18-270mm F/3.5-6.3 Di II VC LD Sample Shots

The following shots were taken hand-held under fairly dim room lights at high ISO using a Canon 40D, and were all processed from RAW in exactly the same way using Bibble 4.10a. The same amount of noise reduction was applied to each, using Bibble's built-in Noise Ninja. All were shot at f/8.

The first one is at 270mm and isn't pin sharp by any means, but the shutter speed was just 1/5 second.


Next - 100mm, 1/10 sec, ISO 1600...


And here's a 100% crop from that...


This one is at 18mm, 1/15 sec and ISO 3200. There is significant barrel distortion but it's quite easy to correct.


And here, for comparison, is a similar shot at 17mm, 1/15 sec and ISO 3200 taken with the Canon 17-40L which also has quite a bit of barrel distortion...


This is a 100% crop from the last Tamron shot...


And this is a 100% crop from the Canon 17-40L shot...


(Continued........)

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Old 15-12-2008, 16:33   #2 (permalink)
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Re: Tamron AF18-270mm F/3.5-6.3 Di II VC LD Sample Shots

Part 2....

Next is the Tamron again at 46mm, 1/6 sec, ISO 1600...


... and a 100% crop from that...


Here's a shot of my untidy office - 18mm, ISO 800 and 0.4 seconds exposure!


Finally, Tabby wouldn't look my way but this is taken with the built-in flash at 65mm, 1/100 sec and ISO 200. Detail is pretty good in the original.


You could say that the high ISO makes it difficult to judge performance in normal conditions, but it does provide a guide and allows a comparison between the Tamron 18-270 and the Canon 17-40L under identical conditions. All in all, I think that the Tamron did quite well.
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Old 16-12-2008, 08:25   #3 (permalink)
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Re: Tamron AF18-270mm F/3.5-6.3 Di II VC LD Sample Shots

Considering its large zoom range the quality of the shots are excellent and far better than I would have thought. As an all round travel lens I can't think of a better option!

Thanks for the detailed photos and for including the 17-40L examples for comparison
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Old 16-12-2008, 10:21   #4 (permalink)
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Re: Tamron AF18-270mm F/3.5-6.3 Di II VC LD Sample Shots

Thanks, Steve. I need to try it out in better light, but so far I'm happy and it seems to do the job very well. The small maximum aperture at longer focal lengths is offset to some extent by the vibration control system, so the lens is usable in low light - for static subjects at least.
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Old 17-12-2008, 15:12   #5 (permalink)
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Re: Tamron AF18-270mm F/3.5-6.3 Di II VC LD Sample Shots

These were shot this morning through the kitchen window at a more respectable ISO 400. Processed in Bibble and resized, but no additional sharpening.

1/125, f/8, 270mm


1/160, f/8, 109mm


And it looks like I'm going to have to lower that table.
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