Tamron 171A 28-200mm

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Tamron 171A 28-200mm
Tamron 171A 28-200mm

Haven't done a weekend vintage lens review in some time. Mainly because there hasn't been any new arrivals due to trying out my current collection on the full-frame A7II.

But I ran across two orphans that I wanted to give a home. They arrived in time to post a little bit about each.

First is this manual focus Tamron 171A. An upgraded replacement of their legacy 71A. It was a vintage 'super zoom' of 28-200mm, with f/3.5-5.6 respectively. They improved the somewhat average 71A with the addition of LD glass element(s), internal focusing mechanism, a non-rotating front ring, and lighter weight. It was more 'plastic fantastic' than before. The new optics paired to the 71A's aspherical front element, now yields satisfactory images. Distortion, aberrations and sharpness all improved noticeably.
But the focus throw has been reduced, and I noticed a lot of focus breathing as the trade off. It's still a convenience zoom, it can't compare to primes of the day, nor modern zoom lenses. But they are dirt cheap used and at $11, I was curious to see if it was really better than the 71A. The Tokina RMC 35-200mm f/4-5.6 SD is a little better at 200mm, and is a similar type of zoom. But the Tamron is wider! For a guy who is a certified prime user, I don't know how I end up with these vintage zooms! But they seem to be cheaper than a sandwich and a bag of chips!

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Taken on: May 12, 2018
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Camera: Sony ILCE-7M2, f/0, 1/160 sec, 0mm, ISO 100 (more info) (hide info)
Camera: Sony ILCE-7M2
Aperture: f/0
Exposure Time: 0.006 sec (1/160)
Focal Length: 0mm
ISO: 100
Exposure Bias: 0 EV
Flash: Off, Did not fire
Exposure Program: Manual
Exposure Mode: Manual
Metering Mode: Multi-segment
White Balance: Manual
Light Source: Daylight
Color Space: sRGB
Software: ILCE-7M2 v3.10
Show full info
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