Follow Focus and Zoom Control (Black) by LensStraps 2 Rods 4 Straps Pack

UPDATED REVIEW:The most obvious downside of these is that they are a pain to take off (being, more or less, zip-strips ... with a release tab). With some practice this gets tolerable, but it's never what you call easy or convenient. The manufacturer's videos make it look easier than it really is. (I don't think they are being dishonest; they just have had WAY more practice.)But over time, I've trended away from using these because of that over-tightening risk I warned of initially. It's tricky to tighten these right. Too loose, and they can spin on the lens. Too tight, and they bind the motion of the focus or zoom element, making for non-smooth movement. Manually pulling focus is tough enough, when the lens moves like butter. And jerky zooms are so distracting in video.So I looked for something better. I initially tried a home-modified Sunwayfoto handle. (The mod was adding beveled grippy elements to spread out the pressure to avoid binding.) But I've finally settled on the RPS Studio (a.k.a. Dot Line) adjustable zoom ring RS-3123. They are in this same price range, and at least for my lenses, give the best dispersed pressure, resulting in no stiff movement. Getting the RS-3123 on and off can also be slightly fussy, but no more-so than for this LensStraps product, and for me the RS-3123 never binds, and its handle has no give, so it introduces zero movement lag. I would advise anyone to try the RS-3123 first. I don't currently see those here at Amazon, but if you Google them, there are current sales out there.ORIGINAL REVIEW:These are about as good a basic manual focus/zoom-puller as I have found. They give a nice solid precise "feel"/control for positioning focus or zoom. After your video shoot, you can slide them off without too much fuss, to restore your camera for still picture use.For easiest removal, first loosen the strap by depressing the zip-strip locking tab, backing it off a few clicks, then position the camera securely, and use both hands on the strap, pulling evenly. (I expect the teeth of the zip strip to wear out eventually, but for it's cost, I can replace it every couple years.)IMPORTANT ADVICE:Do not over-tighten these straps! They can put too much pressure onto your focus or zoom element, making them stiff to rotate. That in turn can make your adjustments much rougher, and harder to get right.Similarly, resist any temptation to secure the straps semi-permanently, with the thought of just unscrewing the handles for stowing or occasion use of the camera for still photography. This seems like it might be a great plan. But that degree of tightening of the strap stiffens the rotation (of zoom or focus) too much.

Great product for those looking to improve their focusing and zooming, yet not break the bank. The area where the pin screws into the ring doesn't seem that durable. Out of safety, I tend to hold it closer to the middle as opposed to further out. Either way, it works as described, and it's worth a shot if you're on the fence since the price is so low.

When I want to go the quick inexpensive route and want simplicity, this is an adequate product.

Helped locate the barrel of the lens and keep my zooming more consistent. Course you do have to leave the strap on, but the handle screws off so you can load the camera lens back in the bag when transporting.

They work!

I use this all the time on my shoots makes me use the camera without a rig and makes life faster.