Here are some tips for using the best camera trigger with your Sony a7II. With a great camera onhand, combined with a sought after camera trigger, you can do so much more.
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MIOPS Smart+ Smartphone Controllable Camera and Flash Trigger for High Speed Photography & Timelapse with S2 Cable for Sony Cameras : Electronics
Miops Camera Trigger
10 Tips for High Speed Photography - MIOPS
MIOPS Mobile Turns Your Smartphone Into a Powerful Camera Remote
How to Use a Smart Phone as a Remote for any DSLR? - MIOPS
Connect your MIOPS Smart+, Flex Bolt, CapsulePRO and Splash to your camera with this camera cable., The camera cables come in 10 different types and
Camera Cable
10 Tips for High Speed Photography - MIOPS
Essential Things to Know About Flash Triggers - MIOPS