Is the Tamron the current version - which is 3rd generation? Pentax is the 1st 
generation.
All the best!
Raimo
Personal photography homepage at http://personal.inet.fi/private/raimo.korhonen

-----Alkuper�inen viesti-----
L�hett�j�: Mick Maguire <[EMAIL PROTECTED]>
Vastaanottaja: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
P�iv�: 02. marraskuuta 2001 16:02
Aihe: RE: Tamron & Pentax was Pentax USA


>Assuming I have the right lenses the Tamron and Pentax product don't appear
>to be exactly the same. i.e. they do not appear to be rebadging, however
>they do look similar which probably belies their manufacturer. also of note
>is that this is an SMCP lens which means it uses Pentax patented coatings
>(perhaps the technology is licensed to Tamron as well though). anyway, judge
>for yourself and  take a look at the specs of the two side by side:
>
>Tamron AF28-200mm XR Super Zoom:
>
>taken from:
>http://www.tamron.com/35mm/35mm_af/a28200a03.htm
>
>Lens Construction (Groups/Elements) 14-10
>Angle of View  75�-12�
>Type of Zooming  Rotation
>Diaphragm Blade Number 7
>Minimum Aperture  F/22
>Minimum Focus  19.3in.(0.49m)
>Macro Mag. Ratio  1:4.0 (at 200)
>Filter Diameter  �62
>Weight 12.5oz. (354gm)
>Diameter x Length �2.8 x 3.0in.
>(�71 x 75.2mm)
>Accessory Lens hood
>
>Pentax SMCP-FA 28-200mm f/3.8-5.6 AL :
>
>taken from from:
>http://www.pentax.com/products/lenses/lense_model.cfm?&lenseType=35mm&lenseS
>eries=FA&lenseModel=FA%2DZoom
>
>Minimum Aperture:    32
>Lens Construction:    14 groups 16 elements
>Angle of View:    75�-12.5�
>Diaphragm:    Fully automatic
>Minimum Focusing Distance:    .52m (1.7 ft.) at 135mm
>Macro Magnification:    0.21x at 135mm
>Filter Size:    72mm
>Lens Hood:    Included
>Lens Case:    33925 S80-160
>Maximum Diameter & Length:    78mm x 83mm
>Front Case Size:    None Available
>Weight:    16.4 oz.
>
>Regards,
>/\/\ick...
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