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Old Aug 11, 2013, 2:27 PM   #1
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Default Tamron 70-300mm

I just got a very nice copy of a Tamron AF 70-300mm f/4-5.6 LD Di macro zoom. This is not the new model but the cheaper old model ( in silver no less ) but it seems to be sharper than the 75-300mm FAJ that I had before.

Anyone have any experieNce with this lens, I will be using it quite a bit in Baker Lake Nunavut (yes I am going north again for another year of teaching).

Reviews I have read say that it is better than you could reasonably expect given the price (less than $200 new).

I look forward to feedback.
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Old Aug 11, 2013, 3:43 PM   #2
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Sorry, I cannot offer any insights on your new lens, since I have the Sigma 70-300 APO DG, another older inexpensive lens that produces surprisingly good image quality. But I will look forward to seeing the images you capture with that lens in Baker Lake.
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Old Aug 11, 2013, 6:32 PM   #3
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I have the newer model and for an inexpensive lens it hasn't been too bad. Macro only works between 180 and 300mm and the distance you need to be from the subject can be difficult to judge when trying to get things in focus. There is purple fringing which becomes more noticeable at the longer focal lengths. I don't know which reviews you were checking but Photozone has a good evaluation of the lens and its good and weak points. http://www.photozone.de/pentax/281-t...ab-test-report.

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Old Aug 12, 2013, 8:00 AM   #4
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I have the Tamron and loved it till I got my DAL 55-300, I like the range of the dal better for soccer shots of the grand kids. The Tamron is better for closeups but does suffer a little with purple fringing. As for sharpness the DAL has a slight edge but the Tamron stopped down to f8 is quite sharp.

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...It is better to burn a roll of film than curse the darkness. Equip. K30, Q7, DAL 55-300, DA 35 f2.4, DA 50 f1.8 DA 18-135, SMC-M 28 f3.5, SMC M 50 f1.4, Canon P&S S100 w/CHDK Beta, Panasonic DMC-GM5, Flickr:
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Old Aug 12, 2013, 11:44 AM   #5
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Here is a 100% crop of a photo taken with the 70-300mm (a quick grab shot using continuous focus). Settings were 1/400 sec., f 11, ISO 160 (was set to auto) and 300mm. The purple fringing can be seen along the wings.

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Old Aug 13, 2013, 8:14 AM   #6
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I'm wondering if the purple fringing might be a too slow shutter speed instead. At any rate, pretty darn good for a 100 percent crop.
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Old Aug 13, 2013, 3:55 PM   #7
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Quote:
Originally Posted by pboerger View Post
I'm wondering if the purple fringing might be a too slow shutter speed instead. At any rate, pretty darn good for a 100 percent crop.
The K-30 has Lateral Chromatic Aberration Correction (default setting) so that may have helped minimize it.

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