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03-25-2008, 08:46 AM   #1
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T-converter

Want to get a little more reach out of my DA 55-200 and thinking about getting a t-converter. What should I know about these? Do I need to stay with Pentax brand? Thanks in advance.

CK

03-25-2008, 09:49 PM   #2
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they are very difficult to find, the price of a an AF TC is around 200+
03-26-2008, 01:55 AM   #3
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As per earlier thread (see under your thread, thread by jgredline) Tamron 1.4 is a very recommendable TC....... IF you can find one.
Anyway, check out that thread.
03-26-2008, 07:28 AM   #4
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I have managed to find one of the Tamron x1.4 AF TCs ... I was lucky (it's still in transit).
Some shops in the US were selling them for around the $130USD mark ... but none of them were willing to ship OS.

Seeing as Tamron has stopped production of them ... finding a 2nd hand one is hard.

One eBay auction went for near $250 for it ... crazy really as that was double the price listed online for some shops.

03-26-2008, 07:42 AM   #5
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Also, a 1.4x will eat up a stop of light, so your 50-200mm becomes f/8 at the long end, and a 2x eats two stops of light, taking you to f/11.
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