I wanna try shoot images outdoors of our collie dog using the Yn560 flashgun, would I simply handhold the flashgun at arm's length..? Any advice appreciated. Can you get a dedicated stand for the Yn560 etc...?
My knowledge of using flashguns is pretty much a big fat Zero!!
If you are happy to hold the flash at arms length then it can be done. And could either be fired using a sync cord -
LIKE THIS or using radio triggers.
If your Yongnuo 560 is a version 1 or 2 then
THESE TRIGGERS will work fine with the flash power being adjusted on the flash itself.
If your flash is a version 3 or 4 then
THIS TRIGGER will allow the flash power to be adjusted from the trigger which is much handier if you move the flash further away.
If you want to move the flash further from camera position, which I would recommend then a stand is a handy way to do it. One
LIKE THIS will be enough but may need to be weighted when using outside. Unfortunately it doesn't end there as you still need a way to connect the flash to the stand, you can either use the thread on the bottom of the foot it came with (but this doesn't allow you to tilt and aim the flash) or use a dedicated flash holder
LIKE THIS or
LIKE THIS The advantage of the second one is that it converts your flash to take bowens s fit modifiers where as the first one is only for use with umbrellas,
And if you have came this far you need to choose whether to use bare flash or modify the light in some way. Cheapest modifier is an umbrella
HERE'S TWO FOR A TENNER or you could opt for a softbox
THIS ONE is a good buy as it includes the second of the flash holders I linked to.
When shooting you will have to keep your shutter speed below the sync speed which on the X-T1 I think is 180th so set 180th and manually set your ISO then adjust the aperture to get the background exposed how you want it, remembering that the subject will be lit by flash so you can underexpose the background if you prefer. Lastly adjust the power of the flash to get the correct exposure for the subject. To get the flash level correct you will either need to fire off a few shots adjusting up or down as you go, or if you still have that Sekonic flash meter I sold you a couple of years back then use that to measure the flash at subject position..
If you are not in a rush to get going with flash we can maybe meet up some time to let you try some things out.