If you’ve spent much time looking through a microscope, you know that their narrow depth of field can be a bit challenging to deal with. Most microscopes are designed to only have a very thin slice of the specimen in focus, so looking at anything above or below that plane requires a focus adjustment. It’s tedious and fussy, and that makes it a perfect target for automation.
The goal behind [ItMightBeWorse]’s microscope mods is “focus stacking,” a technique where multiple images of the same sample taken at different focal planes can be stitched together so that everything appears to be in focus. Rather than twist knobs and take pictures manually, he built a simpler Arduino-based rig to do the job for him. Focus control is through a small stepper motor connected to the fine focus knob of the scope, while the DSLR camera shutter is triggered through a simple relay board. There’s also lighting control, with an RGB LED ring light that can change both the light level on the sample as well as the tint.
The code is very simple, and the setup is quite temporary looking, but the results are pretty impressive. We could do without the extreme closeup of that tick — nasty little arachnids — but the ant at the end of the video below has some interesting details. [ItMightBeWorse] doesn’t mention how the actual stacking is being done, but this CNC-based focus stacking project mentions a few utilities that take help with the post-processing.
If your favorite person has a love of video or photography, a camera may be the best gift they’ll ever get. Some may want to capture their adventures with an action camera, while others may desire a mirrorless camera for portraits, movies or artistic shots. The technology is better than ever as camera makers try to stay ahead of smartphones with faster shooting speeds, sharper video and incredible autofocus. We found the best models for budgets ranging from $400 to $2,500, along with top accessories to complement their existing gear.
GoPro Hero 10 Black
Will Lipman Photography for Engadget
For the adventurer on your gift list, there’s no better action camera than the GoPro Hero 10 Black. It bests the previous Hero 9 Black model in a number of key ways, thanks mainly to the faster GP2 processor. That helps it deliver improved image quality, with higher resolution at up to 5.3K/30fps instead of 5K as before. It also offers improved noise reduction, smoother stabilization, more faithful color reproduction and better handling.
Sony’s A6100 is a great gift idea for budding photographers, as it offers the best features of its APS-C mirrorless camera series at the best price. Chief among those is the incredibly reliable autofocus system with eye-detection and other AI tricks. Even with fast-moving action, the A6100 will nail focus for video or photos most of the time thanks to the extremely rapid tracking system. It also offers accurate colors, good low-light performance and a flip-up display that allows for selfies and vlogging, with sharp video capture at up to 4K. It’s also one of the best mirrorless camera deals around at $748, or $848 with a 16-50mm kit lens.
A gimbal is a great gift idea for video shooters, helping them boost production value with smooth tracking, panning and other shots. If your loved one has a mirrorless camera, the best option is DJI’s Ronin-SC model. It weighs just 2.4 pounds, 41 percent lighter than DJI’s original Ronin-S — making it easier to use for longer periods. It can stabilize just about any type of video as well, thanks to the ActiveTrack 3.0 mode and AI that can lock onto and track human or other subjects.
If your gift recipient is into making YouTube videos, the Panasonic GH5 has been the vlogging camera of choice since it first came out . The 20-megapixel Micro Four Thirds sensor delivers pin-sharp 4K video downsampled from the full sensor at up to 60fps, with a 10-bit high-color option that makes editing easier afterwards. It also includes other necessities for vlogging like a flip-out display, in-body stabilization and dual high-speed card slots. With the arrival of the $1,700 GH5 II, the original GH5 is cheaper than it’s ever been at $1,300, giving your loved one a lot of camera for the money.
If your giftee is starting to get serious about video, the Magnus VT 4000 is the best budget tripod option out there. It’s lightweight at 8 pounds, but the anodized aluminum construction is strong enough to handle a mirrorless camera and accessories weighing up to 8.8 pounds. The lack of heft makes it practical for travel, while the fluid head allows for smooth tilts and pans. Other features include a middle spreader to keep things steady and legs that extend up to 64 inches so you can match the eyeline of your subjects.
For a serious camera gift that’s around $2,500, Canon’s 20-megapixel EOS R6 is the best hybrid model out there. It delivers up to 20 fps burst shooting speeds while the Dual Pixel AF nails focus on nearly every shot, whether in bright sunlight or dim lighting. It’s also a solid pick for video, letting you shoot 4K supersampled video at 60 fps with 10-bit log and HDR options for maximum editing flexibility — again, with Canon’s Dual Pixel AF system that’s second to none. The caveat to that is overheating, which limits use for things like weddings and journalism.
Some of the most useful gifts out there for vloggers are Joby’s famous mini-tripods, and the best one for the money is the GorillaPod 3K. Attaching your camera using the secure clip-in mounting plate is dead simple, and you can ensure that everything is even with the built-in level. The flexible legs let you set your camera anywhere to shoot or even wrap it around a tree or other object. The most common usage is as a vlogging handle, as vloggers can bend the legs forward to fit themselves into the video and steady out their shooting.
Your favorite camera nerd can never have enough memory cards, but they can be a pretty pricey gift. SanDisk’s ExtremePro UHS-I SD cards are cheaper than UHS-II cards, but the 90 MB/s read/write speeds are fast enough for most types of photography and video. If your loved one needs that extra UHS-II speed, Lexar’s UHS-II SD 1667X (250MB/s) and 2000X (300MB/s) SD cards are solid picks.
If the vlogger in your life doesn’t already have one, Rode’s wireless and shotgun microphones are solid, affordable gifts. The VideoMic Go is ideal for interviews and run-and-gun shooting, thanks to the crisp directional audio and relative ease of use. It comes with a shock mount to eliminate bumps or vibrations that could interfere with sound and doesn’t require a battery, unlike past Rode models. Meanwhile, Rode’s Wireless Go is one of the most popular wireless lavalier mics out there, functioning as both a microphone and wireless transceiver. It offers a reliable connection and good audio quality, or you can maximize clarity by connecting an external 3.5mm microphone like Rode’s $40 SmartLav+, the Sennheiser Pro Audio ME2 or others.
A good light is an awesome tool in your favorite photographer or videographer’s arsenal, and a relatively affordable gift to boot. One of the best all-around models is the Nanlite LitoLite 5C RGBWW Mini LED Panel. It weighs just 4.8 ounces, but offers dimmable lighting across a range of colors, with adjustments either on the fixture or via a smartphone app. It mounts on any wall or light stand via a magnet or quarter-inch threads, has cordless operation and a battery that runs for 1.5 hours at full power (charged via USB). The most interesting feature is special effects that range from a cop car’s flashing lights, flames, candlelights, a lightning storm and more.
Backpacks are life for photographers and video shooters, so they make great gifts — if you get the right one. Peak Design’s Everyday Backpack 20L is a good choice, thanks to the stylish weatherproof design, internal dividers for laptops, cameras, lenses and more, a wrap-around zipper and a protected laptop sleeve. It offers excellent build quality and Peak Design backs that up with a lifetime warranty.
As someone who used to use Adobe’s Premiere Pro CC exclusively, I never thought I’d switch to another app. I did, though, and can’t recommend Blackmagic Design’s DaVinci Resolve 17.2 enough (either the free or $295 studio version). You get a lifetime of updates, so it’s far cheaper than Adobe’s subscription program that runs $630 per year. Resolve is slightly trickier to learn, but far more powerful than Premiere for key tasks like color grading and effects. Most importantly, I’ve found Resolve to be far, far more reliable than Premiere on a wide range of computers, which is easily the most important “feature” on an editing app.
Stars appear to stand still, but wait a few minutes and they won’t be in quite the same place. This means that if you want to take a long-exposure image of the sky with your DSLR you’ll have to either embrace the streaks, or use tracking hardware to compensate for this movement. Naturally, this specialized equipment can be quite expensive, but a seen here, you can now make your own 3D-printed OpenAstroTracker controlled by an Arduino Uno.
The device features a 16×2 LED display/keypad shield, along with an optional Bluetooth module for interface. When set up, it slowly rotates the camera to compensate for star movements via two steppers on a gimbal assembly.
[Eugene] wanted to use his vintage Leica M4 as a digital camera, and he had a Canon EOS 350D digital camera sitting around unused. So he Frankensteined them together and added a digital back to the Leica’s optical frontend.
It sounds simple, right? All you’d need to do is chop off the back from the EOS 350D, grind the digital sensor unit down to fit into exactly the right spot on the film plane, glue it onto an extra Leica M4 back door, and you’re set. Just a little bit of extremely precise hackery. But it’s not even that simple.
Along the way [Eugene] reverse-engineered the EOS 350D’s shutter and mirror box signals (using a Salae Logic probe), and then replicated these signals when the Leica shutter was tripped by wedging an Arduino MiniPro into an old Leica motor-winder case. The Arduino listens for the Leica’s bulb-flash signal to tell when the camera fires, and then sends along the right codes to the EOS back. Sweet.
There are still a few outstanding details. The shutter speed is limited by the latency in getting the signal from the Leica to the 350D back, so he’s stuck at shutter speeds longer than 1/8th of a second. Additionally, the Canon’s anti-IR filter didn’t fit, but he has a new one ordered. These quibbles aside, it’s a beautiful hack so far.
What makes a beautiful piece of work even more beautiful? Sharing the source code and schematics. They’re both available at his Github.
This beautiful build is a motion dolly for making time-lapse videos. It is at a point where you could consider it complete. After all, the segments featured in the video after the break look marvelous. But [Scottpotamas] has a few additions planned and it sounds like it won’t belong before he accomplishes his goals.
The build is a linear rail on which the camera rides. In the image above you can see the stepper motor which moves the camera mounted at the far end of the rig. This is controlled by an Arduino. Currently the camera is responsible for timing the capture of the images, but [Scottpotamas] says the firmware is nearly ready to hand this responsiblity over to the Arduino. The system is modular, with a simple setting for the length of the track. This way he can swap out for a longer or shorter rail which only takes about five minutes. He also included support for a panning mount for the camera. It allows the control box can be programmed to keep the subject centered in the frame as the camera slides along the track.
This laser light painting setup can even control the camera. But it probably will not work with your average point-and-shoot. The exposure time used is somewhere around 2 seconds long, a feature which is hard to find on anything but DSLR cameras.
The setup relies on a red laser diode to do the painting. When viewed in real time you only see a dot tracing out a cryptic pattern and occasionally switching on and off. But with a long exposure the intense light persists to achieve an image like the one seen above. Note the ghosting around the rig as it has moved while the shutter was open.
The Arduino controlled device consists of a base which pivots the diode horizontally, with a servo for aiming on the vertical axis. Since the sketch is divided up by letter, we wonder how hard it would be to adapt this for use with a point-and-shoot? Perhaps you could capture one letter at a time and layer the frames in post production?
Pixel_k needed a simple remote shutter for his digital reflex camera, which had to be usable even in low-light situations, so he decided to build his own controller by exploiting an Arduino Pro Mini and a small LCD. The result is “MiniCom”:
The interface is limited to a single rotary knob you can push to validate your choices. It remains easy and intuitive to use even when it’s minus 20°C and it’s pitch black. The output is a standard 3.5mm stereo jack, you can use different cables to control different brand of DSLRs.
Source code and a detailed description of the project can be found here.
