The PocketWizard miniTT1 radio transmitter slides and locks into the camera's hot shoe. The transmitter has a hot shoe on top if a compatible TTL flash is desired on camera. A TTL flash connected to a transceiver such as the FlexTT5 communicates using radio frequency with the transmitter. A direct line of sight is not required, allowing for positioning the flash behind walls or other obstacles. Using the power switch, the transmitter allows for two configured flash channels. The miniTT1 boosts 8 fps, Hypersync up to 1/500th a second, and high speed sync up to 1/8000th a second automatically. Tutorials plus downloadable software for updates and customization are available on the PocketWizard's website. While there, registering the MiniTT1 will add an additional year to the warranty as compared to registering by mail.
Having regularly followed the Strobist's blog, I was excited to receive the compact miniTT1. Set up included installing the included CR2450 battery and training each channel to your desired configuration. Training basically consists of pressing a button on the transmitter until the status LED blinks a certain way, followed by doing the same on the transceiver. After a few minutes, the miniTT1 is ready to use.
To give the miniTT1 a test, I positioned the flash on a transceiver in a large walk-in closet on one end of the house. I then went around the corner and started down the hall. I pressed the Canon 7D's shutter button and the flash triggered. I continued down the hall snapping pictures and watching for the flash in the darkened room through the windows. I got all the way to the other end of the house, over 40 feet away, and the miniTT1 had no problem communicating with the transceiver.
A USB cord is included to connect the MiniTT1 to a computer (PC or Mac) for using the downloadable software. The software isn't required for use, but helps to future proof the MiniTT1 by managing firmware updates (currently version 5) while also allowing for customizing settings on each channel. Customizable options include Modeling, Exposure, Sync Timing, and Flash settings. The only potential problem is the settings can be lost after performing a firmware upgrade.
When not in use, the MiniTT1 takes up very little space. Measuring 2 by 2 3/4 by 3/4 inches, finding a spot in most well packed camera bags won't be a problem.
PocketWizard has designed a transmitter for use by amateurs and pros alike. By using radio frequencies, the flash can be position behind objects without a direct line of site. This may be a more expensive option than a Speedlite transmitter, but provides far more opportunities. If you can take advantage of the compact MiniTT1's features and want an expandable system, PocketWizard's MiniTT1 is a purchase well worth considering.
PROS: Simple set up Uses radio frequency Works over 40 feet away Up to a 3 year warranty Compact size
CONS: Steep price Firmware upgrade may reset customized settings
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