Tag Archives: Monoculars

The Nocs Zero Tube 10X25 Monocular (FSB Equipment Review)

2 Replies

If you’d like to support our work at FSB, please consider purchasing *new copies* of Sneed’s books shown to the right—and support a group such as Birdlife International or Audubon that is working hard to protect birds against climate change and many other perils. Remember: all of our posts are written and photographed by REAL PEOPLE!

Not long ago, I was fortunate to be able to review my first monocular, the Nocs Field Tube 10X32. Today I’m happy to review Nocs’ next-generation monocular, the Zero Tube 10X25.

In past reviews, I have extolled the virtues of Nocs as a company (see this post and this post), and many of you have read of the excellent performance of the Pro Issue binoculars on Braden’s and my very wet recent trip to Costa Rica. With the Zero Tube, it’s clear Nocs is continuing to turn out great products with an ethical mindset, and in talking about this product, it’s perhaps most useful to compare it to their Field Tube that I reviewed earlier.

The first thing cost-conscious birders will notice is that the Zero lists for $179.95, a $50 premium to the Field Tube. Let’s take the Zero’s features one by one to see if it’s worth that extra fifty bucks.

Setting the Zero Tube (right) next to the Field Tube (left) immediately reveals some big—and important—differences between the two. Note especially that the Zero Tube has eliminated the large, bulky focusing knob and comes with a convenient clip for you “pocket protector” types. (Photo by Sneed Collard)

When reviewing the Field Tube, I was impressed by how small and portable it is—which is kind of the whole point of monoculars, verdad? Upon pulling the Zero Tube out of the box, I have to say that I was even more impressed and surprised by how much sleeker it is than the Field Tube! The Zero Tube measures 4.5 inches, a good half-inch shorter than the Field Tube. Better yet, while the Field Tube weighs a very modest 8.6 ounces with the wrist strap, the Zero weighs in at a minuscule 6.8 ounces. To give you an idea of how light that is, my wallet weighs 6.3 ounces—with my Costco card in it!

Like the Field Tube, the Zero Tube is waterproof and features a ridged rubber grip that even the muddiest, wettest hands will have no trouble hanging on to. Like its other products, Nocs provides the Zero Tube with a lifetime warranty—not to mention the fun styling the company is known for.

While creating a sleeker, lighter, and sharper product, Nocs has not neglected the fun styling the company is known for.

Setting the Field Tube and Zero Tube side by side, you’ll immediately note that the Field Tube features a focusing knob on top of the main tube while the Zero Tube has eliminated this. Instead, you focus the Zero by twisting the forward part of the tube. This keeps the Zero Tube from getting hung up on pockets and other compartments, making it truly easy to slip in and out for use. The only downside of eliminating the top focus knob is that the knob allows you to focus while holding the Field Tube in one hand. The Zero Tube pretty much requires you have both hands to hold and focus it. A huge improvement of the Zero Tube, however, is that you do not need to twist it nearly as far to bring it from near to far focus—an essential bonus for a birder.


Though I have not done this myself, digiscoping should be a cinch with Nocs monoculars, especially with the improved optics the Zero Tube provides.

Despite all of its other advantages, the best part of the Zero Tube is the sharpness and clarity of the image. Just last week, I let my friend Bruce experiment with the Zero Tube as we hiked some nearby trails and, really, he was having so much fun I was afraid he wouldn’t give it back! He focused the Zero Tube on some Western Bluebirds in a tree and remarked, “Wow, this really gives you a sharp look!” In my try-outs, I agree, and it’s clear that Nocs’ use of better optics in the Zero Tube has paid off big. To my mind, that alone easily justifies paying $50 more for this fine product.

Compact monoculars do come with some compromises. The most notable is their relatively narrow field of view—6.5 degrees for the Zero and 6.3 degrees for the Field Tube 10X32s. Still, and as I’ve stated before, they aren’t meant to replace binoculars, but to offer a convenient, compact alternative for travel and outdoor activities. If this is a niche that needs filling in your birding activities, you’ll be happy you picked up a Zero Tube.

The many improved features makes paying a little more for the Zero Tube a no-brainer for birders.

Photos (except where noted) and review equipment provided by Nocs.

The NOCS Field Tube 10X32 Monocular (FSB Equipment Review)

2 Replies

I’m excited this week to offer our very first equipment review of a Nocs Provisions product: The Field Tube 10X32 monocular. This is the very first monocular that I’ve ever used, and I was so excited that I tore it out of the packaging and immediately set about field testing it. Before I offer my thoughts, however, I want to say a bit about Nocs.

Everything about this smaller optics company compels me to like them. For one, they take pains to send their products in sustainable packaging—a definite plus for a birder wanting to protect birds and our environment. They are a 1% for the Planet member and a Climate Neutral certified brand. To quote their PR info, “At its core, the company believes that the more we observe and understand how intricate and delicate our planet’s ecosystems are, the more motivated we are to protect them.”

The 8X32 Field Tube shown in Banana Slug (Yellow). This version also comes in Corsican (Blue), Coral (Red), and Desolation (Black). The 10X32s I tested are offered in Ponderosa (Green), Paydirt (Brown), and Oxblood (Maroon). Order by clicking here or on the image above.

Nocs, though, also offers products with super cool designs. The rubber “wave grip” coating of the Field Tube not only offers a great gripping surface, it looks way bitchin’ compared to the standard black exteriors offered by most other manufacturers. Not only that, Nocs products are offered in different colors. Need a pair of binoculars to match your powder blue tux for the Birding Academy Awards? Perhaps something to blend in with your Ferrari while visiting Tuscany? Nocs has got you covered.

But let’s get to the main point, the Field Tube 10X32 monocular itself. First let me say that for birders, this is a “next item” purchase. It’s not intended to replace your binoculars. Rather, it is designed for situations where a slim profile and super light weight are of premium concerns. With a length of only five inches and weight of half a pound—or about a third of traditional binoculars—the Field Tube easily fits into a front pocket and can barely be felt hanging around your neck. This makes it perfect for backpacking, travel, and paddle-boarding. But I can envision other ideal scenarios for this equipment, too. For instance, imagine . . .

The Field Tube is so small and light that you can take it virtually anywhere without noticing it. We call this BIRD PREPARED!

You are in an expensive Tokyo restaurant trying to close a deal with a major Japanese tech company. Suddenly, an Azure-winged Magpie lands in a tree outside the window. You do not want to offend the company president sitting across from you, but . . . as soon as he gets up to use the restroom, you whip out the Field Tube from your front pocket for a delightful look at this long-hoped-for life bird. Or . . .

You’re waiting for your perfect big wave set at Mavericks near Half Moon Bay and an intriguing small black bird lands in the water. Unfortunately, it is too far away to ID with the naked eye. BUT, you just happen to have your Nocs Field Tube stuffed inside the neck of your neoprene wetsuit and, focusing in on the bird, you discover it is a Long-billed Murrelet, just flying in from Siberia! Not only is it a life bird, it allows you to break the ABA Big Year record for surfers, earning you glory, fat promotional contracts, and a sponsorship to bird and surf the world!

You can see where I’m going with this, and I’m sure you can come up with other equally realistic scenarios where you’ll want this item close by.

The Field Tube comes with a handy wrist strap, soft protective carrying bag, and lens cloth—all packed in 100% sustainable recyclable packaging.

A couple of things I especially like about Nocs products is that they come with solid rubber stoppers that snugly pop in over the objective lenses. It’s amazing how even high-end manufacturers have not solved the problem of keeping the objective lens covers firmly in place. I also really like the strap systems for Nocs products. In fact, when you order, I recommend purchasing the woven strap versions as they are more comfortable and, again, look cool.

But back to the Field Tube, it features a fairly close (9-10 feet) minimum focal length and is waterproof down to three feet deep for up to thirty minutes, making it perfect for birders, butterfly watchers, and surfers. As you would expect, Nocs uses fully coated lenses and prisms, and has a lifetime warranty. I found light transmission quite good in these despite the relatively small 32 mm objective lens.

Just for fun, I decided to see if I could get a digiscope photo through my Field Tube. Not bad for my first effort, if I do say so myself. I mean, you can easily see both the Harpy Eagle and Imperial Woodpecker in the photo, right?

At a price of $129.95, you wouldn’t expect perfection from the Field Tube, and I did notice a couple of things that could use improvement. While the focus is quite sharp at close and medium ranges, it gets a bit softer at distance. I’d also like to see fewer turns of the knob required to bring the focus from close to far distance. However, most people will find these minor issues acceptable trade-offs for the incredibly small profile and convenience the Field Tube offers.

Nocs has recently unveiled a monocular upgrade called the Zero Tube which is even smaller and lighter than the Field Tube, and uses a different focusing mechanism. Hopefully, I’ll get to test that one in the future. Next up, though, will be my review of the Nocs Pro Issue 10X42 binoculars, which I am taking to Costa Rica on my trip with Braden next week. My initial impressions of the Pro Issues are extremely positive and I look forward to giving them a full tropical workout. Stay tuned!