Anyone with info re the Pentax teleconverters?

John Kovarik · 04-18-2008, 08:35 AM

Dreamers, all of us. I do think market-niche and pricing considerations must be driving the Hoya folks crazy on this item.........

**Douglas_of_Sweden** · 04-19-2008, 08:11 AM

Originally posted by Mike.P®

Not sure if the Pentax 1.7X works with SDM but one good feature of it is that it converts manual focus lenses to Auto.

That sounds like a fantastic feature. Could anyone help me understand how it can do that?

dantuyhoa · 04-19-2008, 10:49 AM

I got one from frank . A good buy .

The 1.7X TC has the AF screw on the body side so the elements can be moved by the in-body motor . You have to focus the lens manually and then the TC will do fine adjustment on it .

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04-18-2008, 08:35 AM	#16
John Kovarik Veteran Member Join Date: Sep 2007 Location: West Virginia Photos: Gallery Posts: 338	Dreamers, all of us. I do think market-niche and pricing considerations must be driving the Hoya folks crazy on this item.........

04-19-2008, 08:11 AM	#17
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	Originally posted by Mike.P® Not sure if the Pentax 1.7X works with SDM but one good feature of it is that it converts manual focus lenses to Auto. That sounds like a fantastic feature. Could anyone help me understand how it can do that?

04-19-2008, 10:49 AM	#18
dantuyhoa Veteran Member Join Date: May 2007 Location: California Photos: Gallery Posts: 1,245	I got one from frank . A good buy . The 1.7X TC has the AF screw on the body side so the elements can be moved by the in-body motor . You have to focus the lens manually and then the TC will do fine adjustment on it .