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10-02-2009, 11:17 AM   #1
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Vivitar 85mm MF lens

I realize it's MF but does anyone know if it beeps for AF confirmation?
Thanks

10-02-2009, 11:25 AM   #2
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QuoteOriginally posted by Leya216 Quote
I realize it's MF but does anyone know if it beeps for AF confirmation?
Thanks

With a Pentax AF camera? Yes!

I suppose it's the Vivitar 85mm f/1.8? If so and you are not interested, then please drop me a PM. Thanks!
10-02-2009, 11:28 AM   #3
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Could be the new 85mm f/1.4. Should also beep.
10-02-2009, 11:53 AM   #4
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Itīs not the lens that makes the camera beep. Itīs the AF sensor that gives info to the processor which makes the confirmation. That is, every lens you can hook on thatīs not too soft will allow the camera to give focus confirmation.

10-03-2009, 06:31 PM   #5
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Original Poster
Thanks

QuoteOriginally posted by matsoberg Quote
Itīs not the lens that makes the camera beep. Itīs the AF sensor that gives info to the processor which makes the confirmation. That is, every lens you can hook on thatīs not too soft will allow the camera to give focus confirmation.
Thanks for the detailed explanation. So if this is the case even older M42 lenses (obviously with an adapter) should have the AF confirmation right?
BTW I was referring to the newer 85mm f/1.4 Vivitar lens that is sold under different names such as Samyang and Bower.
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