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03-03-2012, 09:03 AM   #1
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K Mount Spring & Ballbearing- Tokina

I have a Tokina 80-200 MM 1:3.5-4.5 lens lying around that was given to me with the mount disassembled. I can tell it also has pretty bad zoom creep. I see where all the mount parts would go and how they fit together except for the tiny ball bearing and one side of the small spring. I see that the opposite side of the spring mounts to a stationary post affixed to the inner side of the metal mount base. What the other side latches to is a mystery to me, as is the placement of the ball bearing. I tried googling a schematic without any luck. Any clues would be appreciated. I thought about repairing the zoom creep but first I want to make sure the lens works. I'll probably leave it alone once the mount is reassembled. Thanks

03-03-2012, 10:01 AM   #2
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Hi

The only place for a small bearing is the aperture ring, there should be a tiny hole with a spring inside that is where the aperture
ring notches are.
The spring should attach to the aperature lever to return the aperture to the closed position.
03-03-2012, 11:45 AM   #3
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Do you need a tiny steel ball?
03-04-2012, 02:58 AM   #4
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Original Poster
Got it, thanks bobpur

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