What I learned from trying the Genaray Oki Mochi on-camera light 💡
Hey Designers! 💙👋
Another cool product to review: the RGB-156B on-camera RGB light. I wanted to share what it does and where I think it fits, especially if you shoot handheld or travel light.
Why a small on-camera light is worth having
Most of us run into the same situation: the shot is fine, the subject is a little dark, and there's no time to set up a stand. A light that lives in the hot shoe fixes that in a few seconds. It fills in shadows under a hat brim, puts a catchlight in the eyes, and gives you a controllable color source for backgrounds and accents when the room is a mix of window light and whatever bulbs are overhead.
How the Oki Mochi works
It's a 156-LED panel: 60 white, 60 amber and 36 RGB. The white and amber LEDs handle color temperature, anywhere from 2500 to 9900K, and the RGB set handles color. Dimming runs from 1% to 100%.
Output is 244 lux at 3 feet at 5600K, with a 120 degree beam. That's enough to light a face at conversational distance and lift a subject a few feet away without it looking like a flashlight.
There are three modes. CCT is plain white light where you dial in the temperature to match what's already in the room. HSI lets you pick any hue on the 360 degree wheel and set saturation and brightness. Effects mode has 21 presets, things like candle, police lights, fire and paparazzi flash, which sound like a gimmick until you need one and don't want to build it by hand.
The battery is built in and charges over USB-C. Genaray rates it at 3 hours at full brightness at 5600K, and a full charge takes about 4.5 hours from a 5V/3A source. It tops out at 12 watts, so it's passively cooled with no fan.
Size, mounting and what's in the box
It's 5 by 2.75 by 1.2 inches and 9.5 ounces, so a bit bigger than the original Mochi and noticeably brighter. It still sits comfortably in a hot shoe without making the camera feel top heavy.
Mounting is flexible. There's a removable cold shoe adapter, two 1/4-20 sockets for a ball head, arm or tripod, and a hand strap if you'd rather hold it off camera as a quick key light. With a phone adapter it works on a phone rig too.
In the box: the light, a soft diffuser, the cold shoe adapter, two washers, a USB-C cable, the hand strap and a manual. It's covered by a one-year limited warranty.
When it makes the most sense
A few situations where I think it earns its spot:
Run and gun video. Interviews in hallways, event coverage, anything where the light changes every few minutes and you need a fill that matches.
Travel and vlogging. For close work it replaces a small stand and a panel, which is most of what you actually do on the road.
Stills with a bit of color. A hue on the background or a rim light gives a portrait some depth without carrying a second fixture and a gel kit.
Phone shooters. With an adapter it's one of the easier ways to get real, controllable light onto a phone.
My take
A light this size isn't going to replace a massive key light for a whole room, and it doesn't pretend to. What it does is fix the most common problem I run into, which is a subject that's a stop underexposed and no time to solve it properly. The color accuracy and the temperature range make it easy to match whatever's already there, the effects are a nice bonus for video, and it's just fun to use when being creative!
If you've got room in the bag, I'd consider it for the price point. 💙 💡
Cheers!
Disclosure: The specs above are the manufacturer's published numbers.