At high power zoom, the view become very dim and the field of view become very small. The front cap is also very loose, it keep falling out. Carry pouch are too small as well.

I've had this monocular scope for a few weeks now. I haven't been able to find any reviews on this monocular. I'm guessing that it is either too new for any extensive reviews, or this product was a failure, and its on the way out.

In either case, I'll provide maybe the 1st review I've seen anywhere.

Pros: Great optical clarity. Zoom is a very useful function, especially with a portable optical scope. The eye relief is much much better than most others out there, (yeah, what eye relief right?). People wearing glasses will be able to enjoy this scope, and it works equally well when viewed directly pressed against your eyes. The Bak-4 Prism as well as the multi-coated lenses produces awesome clarity. Unlike many junkyard ocular scopes out there, the multi-coated lenses on the Echo Zoom do not impede light transmission. Many cheap "ruby" coated scopes significantly reduce light transmission and cloud optical clarity, but NOT THIS ONE !!

Cons: This is my first brunton scope. Though I'm happy with the optical characteristics of this scope, the INSIDE is a different story. The scope is assembled very poorly. Many of the threads are worn out. This makes disassembling and assembling the scope impossible. The grooves on the threads were stripped, and the prism itself has a slight blemish. The glue used to assemble this multi-part prism had some overspray that's permanently blemished on one part of the prism. Though this does not impede viewing or clarity, it certainly speaks numbers about Quality Control. The Zoom seemed to be put together hastily and poorly. I had to open the scope twice to remove plastic shavings on the inside of the objective lens (the one opposite the viewing lens) and manually clear out the leftover plastic debris from the stripped threads.

This scope is characteristic of some of the junk coming out of crappy manufactures. You get what you pay for.

Bottom line: For the price, the ZOOM is worth more than I paid. Don't be surprised if you have to open it up at least once to clean out all the plastic debris on the inside. Otherwise, I love it!

Hope this helped.

Keep in mind, there's also the Original Brunton ECHO, which has no zoom function, but its an established product and is equal in quality if not better to the Echo ZOOM (current item).