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Wernerjb
Tinkerer
Username: Wernerjb
Post Number: 65
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, December 23, 2006 - 07:15 am: | 
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Among the lenses I usually use with my Min SLRs there is a Tamron 28-200 zoom (type 71A), and although almost no metal is used in it, the lens is sturdy and reliable, there is no wobble or play at all, picture quality is fine. The disadvantage is that no polarizing filter can be used because the front lens turns when focusing.
On the newer 28-200 (type 171A) which I bought recently, focusing is done inside the lens, and also the closest possible focusing distance is shorter (0.8m), but towards the shorter end of the zoom range some considerable axial play can be felt. The whole lens mechanism seems a lot more fragile than that of its predecessor. I know that this lens type was first designed for autofocus SLRs and then, because of a considerable demand, it was redesigned for the many manually operated SLRs there are. What I would like to know is how much play is tolerable? Is the wobble I can feel the price lens designers and users have to pay when an originally mini-motor driven zoom lens is reissued as an MF variant, in other words transformed back into an ordinary MF lens to fit older cameras?
I hope there is someone out there who has the answer or knows the Tamron quirks.
A Merry Xmas and all the best for the New Year to all of you out there around the globe, W. |
Chekawa
Tinkerer
Username: Chekawa
Post Number: 18
Registered: 10-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, December 24, 2006 - 01:00 am: |
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Head over here http://www.adaptall-2.com/ You can find what your looking for. If not Email Michael and he is always willing to help people. Nice web site on Tamrons. |
Wernerjb
Tinkerer
Username: Wernerjb
Post Number: 79
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 06, 2007 - 04:44 am: |
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Thanks for your helpful response, W. |
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