SUNWAYFOTO 77mm 77 Adjustable Lens Focus / Focusing /Zoom / Filter Handle / Lever DRH-77 DRH77 Sunway

I also have the 88mm version of this. I use the 77mm ring on my 105 f2.8 AFS-ED Micro Nikkor as a focus handle when I'm on a tripod. It also fits my 24 -120 f4 AFS-ED-VR Nikkor zoom, as a zoom handle. The 88mm fits my 80-400 AFS Nikkor zoom as a zoom handle when mounted in a gimbal head for shooting wildlife. These are great for getting filters unstuck, too. They aren't cheap...but when you consider the cost of filters, it's a bargain.

Mostly nicely made. Looks good. The threads feel 'dirty' like the machining was never properly cleaned up.Note that you have to be really careful not to over tighten it, so it's perpetually either just a bit to tight, or it feels like it's about to fall off. If you tighten it so it actually stays on securely, it noticeably distorts the lens ring, causes nasty friction, and may damage your very expensive lens.Not a bad solution for a quick focus pull. It looks good. It's all metal. Still, using it feels like an unfinished cheap Chinese knockoff, which it is.

Quality wise the Sunwayfoto focusing lever is the way to go. Not seeing where this product falls short. Good build quality. Actually, I bought this to use on adjustable filters, where it works okay. It works better as a focusing lever, which it does well.

Perfect! It works perfectly with my Canon 70-200 f4 and allows very smooth zooming! Love it for the price! Very, very well made!