I'm very interested in acquiring a softbox with a honeycomb grid of about 150cm. Here is one of those: http://www.amazon.com/Lightstand-Octagonal-Honeycomb-Internal-Visico/dp/B00NRZE5MY/ref=sr_1_5?s=electronics&ie=UTF8&qid=1422065047&sr=1-5&keywords=octabox+honeycomb
It'd fit to my Bowens studio flashes, and that's good, but will I be able to use it with portable speedlights? What else would I need to buy in order to do that? Or are there models designed to be used with both kind of lights? Can you point me to them?