Has anybody tried the Kenko 3X Teleplus Pro 300 teleconverter?

**AstroDave** · 02-21-2017, 03:56 PM

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There's one of these for sale on Ebay.

Has anybody used one? What is the optical quality like? How hard is it to focus?

You lose 3+ stops, but for the solar eclipse this summer, there is plenty of light! Might go well with my DA* 300mm, instead of stacking 1.4X and 2X TCs.

**DDoram** · 02-21-2017, 04:33 PM

Does it have AF?

**AstroDave** · 02-21-2017, 05:18 PM

Originally posted by DDoram

Does it have AF?

It looks like it does - there's the slot for the screw drive on the camera end.

Here's the listing: Kenko 3X Teleplus Pro 300 teleconverter for Pentax Excellent+ | eBay

02-21-2017, 03:56 PM	#1
AstroDave Loyal Site Supporter Join Date: May 2007 Location: Flagstaff, Arizona Posts: 1,637	Has anybody tried the Kenko 3X Teleplus Pro 300 teleconverter? Staff note: This post may contain affiliate links, which means Pentax Forums may earn a small commission if a visitor clicks through and makes a purchase. If you would like to support the forum directly, you may also make a donation here. There's one of these for sale on Ebay. Has anybody used one? What is the optical quality like? How hard is it to focus? You lose 3+ stops, but for the solar eclipse this summer, there is plenty of light! Might go well with my DA* 300mm, instead of stacking 1.4X and 2X TCs.

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02-21-2017, 04:33 PM	#2
DDoram Site Supporter Join Date: Jan 2009 Location: Edmonton, Alberta Canada Posts: 632	Does it have AF?

02-21-2017, 05:18 PM	#3
AstroDave Loyal Site Supporter Join Date: May 2007 Location: Flagstaff, Arizona Posts: 1,637 Original Poster	Originally posted by DDoram Does it have AF? It looks like it does - there's the slot for the screw drive on the camera end. Here's the listing: Kenko 3X Teleplus Pro 300 teleconverter for Pentax Excellent+ \| eBay

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