I’ve been scouting with trail cameras for longer than I care to admit, but I will tell you the first devices I used didn’t even take a picture. Instead, they simply recorded when something passed in front of the unit.
Since then, I’ve used cellular trail cameras, 360-degree cameras, time-lapse mode, video mode and burst mode, all to try to get the most out of my scouting.
I wasn’t. Chances are you aren’t, either.
I recently consulted with experts at SPYPOINT and Tactacam to get their thoughts on the latest trail camera technology and how hunters can take advantage of new features. I was surprised at how much has changed, and excited about what those changes mean for hunters in the field.
As we dive into what’s new, let’s look at what makes your cameras tick. Understanding the basic components—and what each one does—will make it easier to appreciate how trail-camera technology has evolved.
Trail Camera Features at a Glance
| PIR sensitivity | How reliably the camera detects animals under different conditions |
| Flash type | Balances nighttime image quality against visibility |
| Trigger speed | How quickly the camera captures an image after detection |
| Recovery time | How quickly it can capture the next image |
| Power | Determines runtime and how often you need to visit the camera |
| Storage | Determines where original images live and how you access them |
How Trail Camera PIR Sensors Work
Most trail cameras use a passive infrared, or PIR, sensor behind a lens on the front of the camera. Rather than simply detecting motion, the PIR system responds to changes in infrared energy as an animal or other object with a different temperature from the background moves through its detection zones.
Most cameras also allow the PIR sensitivity to be adjusted via the setup menu. If you’re like me, incorrect sensitivity settings have likely caused a frustrating number of false triggers on your camera, or caused your camera to ignore deer right in front of it.
Temperature can play a significant role. Cold temperatures can make warm animals stand out more clearly against the background. Hot weather, meanwhile, can make it more difficult for the camera to detect a temperature difference between an animal and the environment.
But temperature isn’t the only factor. Vegetation, direct sunlight, camera angle, detection distance and other site conditions can contribute to false triggers or missed animals. If either becomes a problem, adjust the PIR sensitivity to match the conditions where the camera is being used.
Low-Glow vs. No-Glow IR Trail Camera Flash
Next up are the IR LED banks. Light-emitting diodes have replaced traditional flash units on most trail cameras.
They’re efficient and able to illuminate an object with far less noticeable light than a traditional visible flash. There are also no-glow LEDs designed to produce infrared illumination that is essentially invisible to the human eye.
Because infrared light falls outside the visible spectrum, cameras using IR illumination produce the familiar black-and-white nighttime images seen on most trail cameras today.
Gone are the days when you could quickly tell whether a trail camera had a long flash range by counting the number of individual LEDs on the front.
Today’s high-output LED banks allow fewer diodes to be used. In addition, many cameras cover the LEDs with a dark lens, making it difficult to count the individual diodes. Refer to a camera’s specifications to find out its rated flash range.
There are a few considerations when trying to decide between a no-glow camera and a low-glow unit.
Low-glow LEDs generally provide stronger illumination and often produce brighter, more detailed nighttime images. No-glow systems prioritize concealment by eliminating or greatly reducing the visible red glow that can be produced by low-glow LEDs.
So why would you choose a no-glow model? One reason is to reduce the chance of drawing attention to the camera, whether from deer or people.
But even no-glow LEDs can’t guarantee a deer won’t notice the camera. Nor is there a guarantee a buck will notice a low-glow camera.
“The difference between choosing no-glow versus a low-glow camera for many hunters is their past experience,” said Justin Lanclos, director of product positioning and value for SPYPOINT. “Every deer is different.
“Some react to cameras and avoid them, and some don’t. But if a hunter has seen one buck ghost a camera—ever—it likely gets blamed on the LED. They’re the easy scapegoat.”
SPYPOINT has addressed that concern with its FLEX-series cameras , some of which offer both low-glow and no-glow options in the same unit, allowing hunters to switch between them remotely.
Single vs. Dual Image Sensors
Last on the list is the image sensor, the element responsible for taking the pictures.
Some cameras use a single image sensor for both daytime and nighttime photography. Others use separate sensors optimized for daylight and low-light conditions, with the camera switching between them as conditions change.
While cameras share many of the same basic components, the performance of those individual items varies. Camera models often excel at certain tasks, so pick one that best matches how and where you use it.
Next, we’ll cover some of the performance-related specifications.
Why Trail Camera Recovery Time Matters
Recovery is the time it takes for a camera to be ready to capture another image after snapping a picture. It can be affected by the speed of the camera’s processor, the time required to process and save the image, the storage system and other camera functions.
Cellular cameras add another process because images also have to be prepared and transmitted over a cellular network. Many current cellular cameras handle image capture and transmission separately, however, allowing the camera to continue taking pictures while previously captured images wait to be uploaded.
All cameras, cellular or not, have a recovery time.
Recovery is important if you want to capture multiple pictures from a single encounter. Cameras pointed at a feeder or bait pile need not have blazing-fast recovery times since deer usually hang around food sources longer. Cameras hung on secluded trails need a quick recovery to catch multiple pictures of a buck slinking from one hiding spot to another, or to capture a buck trailing a hot doe.
“Recovery speed used to get a lot of attention,” Lanclos said. “That was before video options became so widely available. Now, during the rut, or in close-encounter setups, I and many other hunters simply switch to video mode. It’s the difference between catching just the doe, or getting the doe and the buck chasing her during the most important time of the year for gathering data: the rut.”
Another workaround for recovery time is to use burst mode, if available. In burst mode, a camera takes multiple pictures with each trigger. Burst mode uses more battery, though, and can consume storage space quickly.
When you don’t want as many pictures, look for an interval or delay setting via the setup menu. This allows you to set a minimum amount of time before the camera takes another picture, regardless of the recovery time. A longer delay can be helpful at high-traffic locations like feeders, while a shorter delay can be better for trails.
Trail Camera Trigger Speed: Faster Isn’t Always Better
Do not confuse recovery time with trigger speed. Trigger speed is the amount of time between when the PIR system detects a qualifying change in infrared energy and when the camera takes the picture.
A slower trigger speed, meaning a longer time between detection and picture, can result in photos of the back end of faster-moving deer.
Extremely short trigger times can present their own challenges. Because a camera’s detection zone can extend beyond its photographic field of view, it’s possible for the camera to trigger and snap a picture before the deer fully enters the frame.
No matter how fast the trigger speed of a given camera, it cannot take a second picture until it has recovered from taking the first.
How Cellular Trail Cameras Work
Cellular trail cameras have also become much easier to manage. Earlier systems often required hunters to think more about which cellular carrier served a particular location. Newer cameras can automatically select among supported networks, reducing some of the guesswork before a camera ever goes into the field.
SPYPOINT is taking that idea another step with its upcoming FLEX-RANGE, a cellular trail camera with backup satellite coverage. The company says the camera will be able to stay connected in areas with no cellular signal by switching to satellite coverage. SPYPOINT has not publicly identified which satellite network will provide that backup service.
The apps have become smarter, too. Depending on the camera and service plan, hunters can change settings, request higher-resolution images or video, use GPS to locate cameras and even view live or on-demand footage without walking into the hunting area.
Some systems can also sort or filter transmitted images automatically, reducing the amount of time hunters spend scrolling through thousands of photos.
That doesn’t mean today’s cameras have fewer features. They have more. The difference is that an increasing number of those features are designed to eliminate work rather than create it.
As always, check what comes with the camera and what requires a paid subscription because remote features and data plans vary considerably among manufacturers.
Trail Camera Batteries: Lithium vs. Alkaline
I learned the hard way not to use generic alkaline batteries in trail cameras. It would take a lot of cheap battery-buying to pay for the ruined, acid-filled cameras that taught me that lesson.
Since then, I’ve used name-brand alkalines without any issues, and I thought I was making the best decision for my cameras and wallet.
Like many hunters, though, I ignored the fine print in camera instructions that often recommends lithium batteries. Turns out there are several good reasons to consider them.
Lithium batteries cost more than alkaline batteries, but they typically provide longer runtime, with the actual difference depending heavily on the camera, temperature, flash use, cellular activity and other settings. That extended life can offset some or all of the higher purchase price depending on how the camera is used.
Another advantage is voltage. The voltage supplied by alkaline batteries gradually declines as the batteries discharge—think of a flashlight that gets dimmer as the batteries drain. Lithium batteries maintain a higher, more consistent voltage through much of their discharge cycle, more like a cordless drill that seems to run at full strength until the battery is nearly spent.
That’s important because trail cameras are designed to operate within a certain voltage range. Flash performance, recovery time and other electronic functions can suffer when the camera doesn’t receive sufficient power.
Lastly, lithium batteries generally perform much better in extreme cold than alkaline batteries. That can be particularly important for cameras that remain in the field through winter.
In short, lithium AAs can provide longer runtime, more consistent voltage and better cold-weather performance than alkalines.
Rechargeable Trail Camera Batteries and Solar Power
AA batteries are no longer the only practical option. Camera manufacturers now offer rechargeable lithium packs, solar systems and other power accessories designed to extend runtime and reduce battery changes.
Solar options and rechargeable power packs are changing the way we use our cameras. They can also make a lot more sense financially.
“We’ve heard time and time again from our customers that battery life is paramount for their cameras,” said Gregg Farrell, REVEAL vice president of brand and marketing.
Farrell said Tactacam set a goal of more than doubling battery life from its 3.0 cameras when developing the REVEAL 4.0 line. The company even brought in engineers who had worked on power systems for rockets to help improve camera efficiency and develop its lithium battery system. Farrell said the 4.0 cameras will run more than twice as long as the 3.0 generation, depending on settings.
But what got my attention were the AA alternatives introduced with the new line.
Tactacam says its rechargeable FlexPack R10 can replace up to 2,000 disposable AA batteries over its lifetime. It doesn’t take anything close to 2,000 replacements for the economics to tilt heavily in favor of rechargeable power.
SPYPOINT and other manufacturers are moving in the same direction, offering rechargeable lithium packs and solar options, including cameras with integrated solar charging.
Rechargeable packs can dramatically reduce recurring battery costs and waste, while solar charging can extend the time a camera remains in the field between visits.
Trail Camera Storage: SD Cards, Internal Memory and Apps
Trail-camera storage used to be simple: Put an SD card in the camera, and that’s where your pictures went. That’s no longer necessarily the case.
Some current cameras still rely on removable SD or microSD cards, while others have built-in memory. Still others combine internal storage with an optional memory-card slot. That means there’s no longer one good rule for choosing a card—or even an assumption that you’ll need one.
If your camera does require removable storage, follow the manufacturer’s specifications for card type, speed and maximum capacity. Buying the fastest or largest card on the shelf won’t necessarily improve camera performance and can create compatibility problems if the camera wasn’t designed to use it.
Cellular cameras have also changed what we mean by storage. Instead of pulling a card to see what’s been happening, transmitted photos and videos can be viewed through the manufacturer’s app or online account.
Depending on the system, however, the image you see remotely might not be the original full-resolution file. The camera may keep the full-resolution photo or video locally while transmitting a smaller version or preview, with higher-resolution files available on request.
That makes it important to understand both sides of a cellular camera’s storage system: what the camera keeps locally and what is transmitted and retained online. Those details—as well as image limits, resolution, retention time and subscription requirements—vary by manufacturer.
Also keep in mind that SD cards don’t last forever. Flash memory can wear with repeated writing and erasing, so an older or heavily used card can become a source of corrupted files, missed images or other seemingly mysterious camera problems. If a camera begins acting erratically, formatting the card—or replacing a well-used one altogether—is an inexpensive troubleshooting step.
The bottom line is simpler than it used to be: Check your camera’s storage requirements before buying memory cards, and if you’re using a cellular model, know what happens to your pictures after they’re taken.
Smarter Cameras, Simpler Scouting
Thinking about all the different trail-camera technologies I’ve used over the years, one thing stands out about where the industry is headed: Cameras are doing more than ever, but hunters increasingly have to do less to make them work.
We now have better sensors, smarter power systems, cellular connectivity and integrated storage, all handling tasks that once required constant attention behind the scenes.
Maybe that’s the biggest advancement of all. The technology keeps getting more advanced, but using it keeps getting simpler.
