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Two TAMRON lenses
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PostPosted: Fri Aug 01, 2014 3:25 pm    Post subject: Two TAMRON lenses Reply with quote

Two Tamron lenses, both 'Gifts' -- I have been using them lately -- on the LEFT is a fixed focal length 300mm f5.6 and on the RIGHT my latest gift an 'SP' 3.5-4 70-210mm zoom. Both have the 'adaptall' mount, M42 screw so I can use them with all my Screw thread cameras and my K10D with the Bayonet- Screw adapter. They are fully useable at full aperture.
Two Tamron lenses by pentaxpete, on Flickr


PostPosted: Fri Aug 01, 2014 8:12 pm    Post subject: Reply with quote

Nice score Pete. Quite a few people rate the SP 300mm and IMO its predecessor (on the L in your pic) the CT300 is almost as good. You can do a bit of a comparison....

They are both adaptalls of course so you can always get a PK or PKA mount for them.


Last edited by marcusBMG on Sat Aug 02, 2014 3:20 pm; edited 2 times in total


PostPosted: Sat Aug 02, 2014 6:03 am    Post subject: Reply with quote

If youre going to use them on the K10D, then I would highly recommend getting the tamron PK
mount for the lenses so you can stop them down as well as use them wide open.


PostPosted: Sat Aug 02, 2014 7:51 am    Post subject: Reply with quote

The CT 300 is a very good lens, any lack of sharpness compared to it's rivals is made up for by it being lighter and much easier to handle. I get better pictures from the Tamron than I do from the Tair 300.


PostPosted: Sat Aug 02, 2014 6:49 pm    Post subject: Reply with quote

The SP 70-200mm f/3.5-4 Model 52A is very handy for close-up/macro/bokeh, because it has 1:2 magnification at the long end.

The sharpness is also pretty good. Lighter than the Vivitar S1 90-180mm f/4.5 Flat Field. And usually much more inexpensive too.

Some samples:







PostPosted: Sat Aug 02, 2014 11:36 pm    Post subject: Reply with quote

I think Tamron made some of the best zoom lenses of the day. Every one I've got gives me very acceptable pictures, sometimes first class pictures. Although a lot of that depends my skills - or lack of skills! But I do believe that out of the third party lens manufacturers Tamron gave photographers the best quality for the money in zooms. Maybe equal to Vivitar.