I got a used 80-200 f/4 AIS, supposedly in "excellent" condition. It is fine condition except that if I hold it vertically (up or down) the zoom ring won't hold. Is this normal? Are they all this way?
#1. "RE: Zoom ring loose on 80-200" | In response to Reply # 0Sean Basic MemberMon 07-Apr-03 10:56 PM
I've got it's earlier cousin the AI f4.5 and it exhibits the same behavior. Never really presented a problem for me. But, I am currently trying to sell it (got the AF-D 2-touch f2.8).
Sean A. Hickey
Photographer - Woodworker - Kayaker - Ad Guy
#2. "RE: Zoom ring loose on 80-200" | In response to Reply # 1Tue 08-Apr-03 12:45 AM
>I've got it's earlier cousin the AI f4.5 and it exhibits the
KEH (not the place I bought this one) lists "zoom loose" on several of those, so it must be a common problem with them. They don't list it with any of their 80-200 f/4 AIS lenses.
#3. "RE: Zoom ring loose on 80-200" | In response to Reply # 2
I have had an 80-200mm f4.5 since the early 80's. Yes, there is some zoom creep on this lens, particularly if you lift it straight up for balance, or shoot down. I am told that the design of this lens is based on the helicoil, and the packing used in the helicoil. A one touch zoom is pretty tough to balance the ease of zooming with the lack of creep. The tighter the movement, to avoid creep, the more people fuss over stiffness in the zoom or focus. The more you use the lens, often the more it moves freely. Not a problem with a prime, but a problem with a zoom. Repair shops can try to repack the helicoil, but it is not cheap, and often won't solve the problem. Some people use gaffer's tape to secure a zoom if it is really a problem. To me, not a problem, as I usually hold the barrel while focusing or zooming, and steady it with my left hand, thus keeping it from creeping. I hope this helps.
#4. "RE: Zoom ring loose on 80-200" | In response to Reply # 3Sat 19-Apr-03 10:41 PM
> A one touch zoom is pretty
>tough to balance the ease of zooming with the lack of creep.
My 35-105 one-touch is just right.
> Repair shops can try to
>repack the helicoil, but it is not cheap,
Roughly how much?
>Some people use gaffer's tape to secure a
>zoom if it is really a problem.
It isn't that bad. I was able to shoot up at an angle of move than 45 degrees, and it held. It won't hold straight up.
#6. "RE: Zoom ring loose on 80-200" | In response to Reply # 3Sun 20-Apr-03 06:59 PM
>I usually hold the barrel while focusing or zooming, and
>steady it with my left hand
That's hard for me since I'm left-handed. I turn the rings with the right hand. I've been trying to learn to do it with the left hand, but it is hard.
Pointing up at about 45 degrees from horizontal, it will hold, but not at much more than that. Pointing down, it will hold to about 75 degrees from horizontal.
Is this typical?
#5. "RE: Zoom ring loose on 80-200" | In response to Reply # 0
Like the others mentioned, it does happen with lenses of this type. My 80-200mm 4.0 is in pretty good shape and the collar will slide down when the lens is held vertically, albeit fairly slowly. That's what this model of lens did even when new, and it's not much of a problem. If the collar drops quickly, the lens is a bit sloppier than ideal. If you paid a lot for the lens, you might want to talk to the seller. If not, here's a cheap and easy solution:
- Add a strip of transparent tape to the bottom of the lens along the axis of the lens. The tape should extend from the point the collar is at when set at 80mm to the point it as at when set at 200mm. In other words, if you've done it correctly, you won't be able to see the tape when the lens is at 200mm. You'll be able to gradually see more and more of the tape until the lens is at 80mm, when you can see the entire length.
- Try the zooming action now and see if it's firmed up at all (probably not).
- Continue adding layers of tape, one piece at a time, until you reach the desired level of friction. Don't overachieve. If it gets too stiff, carefully peel off the outermost layer.
This trick worked very well with my older 80-200mm 4.5 and it should work well with your lens as well. It's simple, effective, and isn't very visible. Putting the strips of tape on the bottom isn't just for aesthetics; it also keeps the depth of field scale from being blocked.
I hope this helps.