Regarding the latest model 171A with internal focussing and 0.8m closest
focus, I did own one until quite recently. I bought it on eBay, and it was
shipped from England to Denmark. When I received it, it 'klunked'; sounded
like a loose internal element. It was repaired professionally, and the
technician told me that the lens construction was a bit weak, but he had
fixed it and stregthened it. I had no further troubles. It proved to be a
very useful lens, amazingly compact and lightweight. I could carry it
mounted to the camera in a pretty small bag. Performance-wise it seemed to
give a little barrel distortion at the wide end, but was otherwise fine.
I sold it because I find it much easier to focus a zoom with an f2.8 lens,
and I am tending towards shorter focal length lenses generally. But I would
highly recommend it otherwise; the light weight is really useful, and
compares well to Zuiko primes regarding general camera balance.
Regards/Mvh.,
Roger Key
Larry Woods wrote:
Replies so far:
"Roger D. Key" <rdk@xxxxxxxxxx>:
> There are only two manual focus 28-200 Tamrons; model 71A (f3.8 - 5.6
> Aspherical) and 171A (f3.8 - 5.6 Aspherical - Internal Focussing). The
71A
> has a minimum focus of 2 meters, and you need an extra Tamron close-up
lens
> to get closer. The 171A focusses to 0.8 meters, which is much more
useful!
> The 71A was made from 1994-1998, and the 171A (still current) since 1998.
>
> You can see the specs for all Adaptall-2 Tamron lenses (with a good deal
of
> Japanese, but enough numbers to be useful) at
>
> http://www.tamron.co.jp/data/a2-lens/mflens.htm
"om@xxxxxxxxxxxxxxxx" <om@xxxxxxxxxxxxxxxx>
> Is it for an OM body? If so, more recent =3D better, IMO=2E
- - - - - - - - - - - - - - - - - - - - -
Yes, it is for OM. I use an OM-1 and OM-2n, and occasionally an OM-PC.
The model focusing only to 2 meters would not do for me.
If I had the lens in hand, I could just check the focusing scale to
see that I had the newer model, but on *bay, what physical
distinguishing chatacteristics can I look for, or ask the seller for
if their picture isn't clear?
I would also be interested in hearing the experience of people who
have used a 28-200mm zoom. How does its large diameter and weight
(compared to Zuiko primes) affect camera handling? Do you still carry
a prime lenses, like an ultra-wide or a 50mm for low-light situations?
My intent is to carry the zoom instead of a bagful of lenses when
traveling and photography is not the purpose of the trip.
Thanks for any help you can provide.
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