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05-10-2009, 11:59 AM   #1
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Please post images taken with Kenko TelePlus 2X MC7 TeleConverter

I would prefer to see images taken with this TC and the Sigma 100-300 F4 EX, however, any lens is ok.

Thank you.

05-10-2009, 01:01 PM   #2
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I don't have a 300mm, but I do have the Pentax 18-250mm and the Kenko MC7.

I find the the Kenko does make the focus a bit soft when used with the zoom.

Here are some samples...

This is with the Pentax 18-250mm zoom at 18mm for a reference:



This is the same scene at 250mm:



...and this is at 250mm with the Kenko MC7 2X teleconverter:



These are all straight out of the camera with no post processing... ISO 200 Aperature priority at F8...

Alex
05-10-2009, 03:10 PM   #3
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Alex, thanks...but, you are stretching the laws of physics here...I had this lens, and it is an excellent lens, but at 250 it is already at the limit and you went beyond that with a 2X TC, wow!...did it even auto focus ?...The image with the TC is not too bad...the one at 18mm is fantastic.

Thank you for your help.
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