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12-02-2011, 03:57 AM   #1
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New Vivitar 2x PKA macro teleconverter

Not sure I should be posting this here or elsewhere, but I've just got hold of a Vivitar 2x macro teleconverter with PK-A capability but no manual.

Now I know I can just 'twiddle with the thing' and see what happens, but I seem to have a second narrow knurled ring, close to where the converter fits to the camera body and wondered what that does?

Has anyone any idea - or better still can point me to a manual for one of these?

Many thanks

12-02-2011, 06:15 AM - 1 Like   #2
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The thin knurled row near the base does nothing more than act as a grip when mounting or adjusting the TC - the row of numbers from 1:1 on left & 1:3 to right indicate the life size macro @ .45m with a 50mm lens fitted, the lower row is for same @ infinity with a 50 mm lens fitted. With a 50 mm lens fitted it acts like a 100 mm macro lens - as you will have 2 manual focus rings one on TC & one on the lens it is best I find to set the TC @ required level of magnification & adjust the final focus with the lens.

Just make sure on SR that you list as a 100 mm lens.
12-02-2011, 08:39 AM   #3
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Just what I needed. Many thanks. I'd pretty well worked out the rest - except for it applying to a 50mm lens.

Now for the time to get out and USE the thing!

Cheers!
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