Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: What is the weight of the heaviest binoculars you used these with? I have a 2.6 lb set and wonder if the binoculars will hang too low and swing around while I walk?
Document: This harness uses their proprietary snap buckle system that allows you to move a camera (or binoculars) from one strap set up to the other with minimal effort. Placing the buckles onto my Canon SX40HS (an absolutely rocking superzoom point and shoot) .Canon SX40 HS 12.1MP Digital Camera with 35x Wide Angle Optical Image Stabilized Zoom and 2.7-Inch Vari-Angle Wide LCDwas a little difficult as the buckle straps were almost too thick for the camera's strap mounts.
Op/Tech Bino/Cam Harness, Elastic Version for Cameras & Binoculars - Blackthis is the best thing in the world! when i'm out taking photos, i wear my camera around my neck all day. after a while even the lightest camera gets heavy. this totally relieves the weight! the straps make it easy to raise and lower the camera, and they keep it from swinging around when walking. everyone with a (d)slr should have one!
It connects to your camera with quick-release clips that are very sturdy.The straps are adjustable so you can get your gear to hang exactly where you want it. This is great because if you have it too tight you can't raise the camera to your eye and if it's too loose it bangs on your belt buckle and makes it hard to walk.
I used this harness on a two week trip to Canada, too lots and lots of photos. It is easy to put on and off, once you get the hang of it, and it saved my shoulder and my camera from aches and bumps, respectively. A good value for the money.
I use this for my nikon d5100 camera.I like that I can walk around hands free.I gave it a 4 star simply because the straps do tend to twist and tangle up,but not too much of an issue.
I was excited about a product that would take the pressure off my neck but soon realized that the harness does not stay in place and moves around. Then you end up with one side clip higher than the other. By the end of the day I could only sling it over one shoulder. There should be a way to clip it in place when you get it set for your body size.
I recently went to Africa on a Safari and used the Op/Tech/Cam Harness for my camera and long lens. It was easy to use, no swinging camera especially when moving in vehicle. It keeps your camera safely in front of your body out of harms way. Easy to swing camera up for focusing. I will use it every time when going out for the day and on long trips. No more neck aches from camera straps.
A friend of mine used a harness on a recent photo shoot we took together. I asked her why she preferred the harness and her answers made sense. The harness allows hands-free and safe camera access. The neck-strap always allowed the camera and the lenses to swing freely. With the harness, the camera stays in position and I know where the lens is at all times avoiding bumping into people or objects as I move about.
I have at home at least 6 different straps for my heavy SLR (Canon 30D with 18-250t Tamron zoom. )I go a few times a year for trips abroad taking thousands of pictures .the optech harness is the most comfortable way to carry the camera for hours!! !in the beginning it took some time to get used to it, but later-I did not feel that I carry the camera...great product and not expensive!
The elastic version (there is a non-elastic version as well) worked out perfectly for me. I needed something to hold my Canon 40D above my waist and still keep it accessible for nature walk through the FL Everglades. Worked better than expected, harness would slide slightly down my back as I brought the camera up and the elastic allowed for comfortable use of all features.I used the harness connectors on my camera and left my longer neck strap connectors on the camera as well.
Answer: I use them with a DSLR camera that is probably around 3 lbs more with my largest lens and the harness is awesome. No, it doesn't shake around if you have the straps adjusted right. I would definitely recommend this!