Nice addition to a field camera
I do a lot of outdoor nature work. While I own, and use, a full sized DSLR I've found the Olympus Tough series a good camera for carrying around outdoors. My only concern was that the 4x zoom wasn't always "long" enough for some subjects. The TCON-T01 adds .7X to the focal length without degrading the image quality. It is very compact, light weight, and (like the camera) totally waterproof down to 50 feet.
I've dragged mine, with the camera, through a muddy swamp, kept it out in the rain, and used it in blowing beach sand. It works just fine and is great for those subjects that you just can't, or don't want to, get closer to. Try shooting a close up of a large gator or venomous snake while you're in waist deep water to see the advantages of this lens.
YMMV, but it works great for me.
Verified purchase: YesCondition: New