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09-14-2008, 07:15 PM   #1
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examples with and without promaster 1.7x teleconverter

All shot with the Pentax 55-300 F4-5.8
not bad for $78 shipped

55mm without

55mm with (93.5mm)

300mm without

300mm with (510mm)

09-14-2008, 08:42 PM   #2
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Which dealers in USA sell the promaster 1.7x teleconverter. Hoping to get 1 shipped to Aus.

09-14-2008, 08:43 PM   #3
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like heather's test showed, it's looking pretty good so far
what do you think?
09-14-2008, 09:18 PM   #4
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I got mine at Wolfe's, but it looks like they've gone up on the price since I bought mine. It's $99 now. Hmmm...
Promaster AF 1.7X Teleconverter 2009 : Wolfe's Camera Shop


09-14-2008, 10:11 PM   #5
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This pro master thing is pretty good. I too bought mine from wolfes for $78.00 shipped on ebay.
09-14-2008, 10:40 PM   #6
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Yes, I like my promaster 1.7x AF TC. My friend Gus has some soft focusing issues with the promaster. But other than one negative response, all users seem to be positive with the TC. I was probably the initial people who brought the attention of the TC along with few other discussions in

My blog posts:
AF in Promaster 1.7x TC is noticeably slower than that with Tamron 1.4x TC. The slowness is more pronounced in K100D than K10D.

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