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During a week of scuba diving in Bonaire, we tested a number of accessories for GoPro cameras, particularly useful for underwater exploration but also useful on the surface. For video recording, it should be noted that the light has so-called “constant current drive technology” that prevents video flicker. Using the video light during the day may seem unintuitive but there are several situations when it may come in handy. In the picture to the right, the diver shines the Qudos light on a piece of coral that he is videoing. Another way to use the light is to illuminate objects that your dive buddy is taking pictures of.
The right part of this picture is lit up by the Qudos light by a diver from above, at the same time as another diver takes the picture from the side.
Another example of this collaboration is to point out objects that otherwise would be hard to see, even in regular light, for example, as a backlight for this tiny comb jellyfish.
The Qudos light package includes a DSLR flash shoe mount adapter, which enables the use of the Qudos light as a regular video light for a DSLR camera.
The flash shoe mount adapter also serves as a useful extra tripod thread adapter for affixing your GoPro camera on a tripod mount.
A convenient way to get some distance between you and the object you are photographing is to use a camera pole. To change the length of the pole, you twist the handle on the pole to release the locking mechanism. When recording video or taking photos underwater the camera’s white-balancing mechanism may be confused. The filter design we tested is a snap-on style, where the filter frame “hugs” the underwater housing lens (as shown in the middle frame).

If you are scuba diving on coral reefs it is definitely worthwhile to invest in a red color filter to get better colors in your footage.
There are many different MicroSD cards on the market, and when you buy a memory card it’s important to buy one that can handle the data rates from your GoPro camera model.
Using three LEDs, it delivers up to 400 lm (lm stands for lumen and is, somewhat simplified, a measurement unit of the amount of emitted light from a source. The light has three modes “action sports”, “target spot”, and “ambient”, plus two intensity levels for each mode, for a total of six settings. It can be used to light up areas that are naturally shaded, like under an overhang or on the shadowed side of coral.
The included mount allows the light to be tightly attached to the GoPro camera for a compact package.
The adapter attaches to the Qudos light, and the light is then mounted in the camera’s flash shoe.
Extend it to the length you want and then twist in the opposite direction to lock the pole at that length.
Some camera vendors provide a special underwater setting with color correction in the camera software, and others opt for external color filters. In the middle frame, the red filter is being mounted over the lens, and it’s possible to see both the cyan (uncorrected) color and the color through the filter.
We tested the Polar Pro red filter, which is a great value for the price option, but GoPro also makes their own red filter. If you already have a MicroSD card you can use it to take photos, but it may not be able to store data at a high enough speed for the highest video settings on your camera. The battery lasts more than 4 hours, depending on the light setting you use, and you can then recharge it via USB using the cable it comes with.

This is especially valuable during the evening to adapt the light level to the surrounding conditions and the object being illuminated. Collaborating this way may allow for lighting situations otherwise hard to create when the camera and light are mounted next to each other.
The combination is a portable light useful for many situations, including doing mechanical work at home. Using the camera pole takes a bit of practice to avoid shaky footage, but it is easy to learn after a couple of videos. The filter package includes a small rope to secure the filter to your camera so you don’t accidentally drop it.
This memory card also comes with a SD adapter so you can use it in another digital camera or to quickly transfer your videos to a computer like a MacBook Pro with a built-in SD card reader.
To learn about what the different memory card speed classes mean, visit the SD Association website. The image intentionally shows both how the Qudos light helps (right side of the image) and how the image would be without the light shining on the Christmas tree worm (left side of the image).
To clean the pole, immerse the whole pole in a rinsing tub (or sink) filled with fresh water from a tap, unlock the mechanism, fully press the pole in and extend out several times to flush water through.
We tied rope to the filter and placed the loop between the GoPro mounting prongs, which worked well for us.
It comes with a wrist strap and has a GoPro mount at the end so you can directly attach the GoPro camera.

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