GoofyNewfie wrote:
One more thing, the farther away the flash is, the less light it will throw on the subject. You will need to use a wider aperture and/or a higher ISO setting (or as you discovered, move closer. The shutter setting will not affect the flash exposure in a normal setting.
This is good advice. The flash may be firing at its highest output level already. I boost the ISO setting of the camera. If you're using direct flash you may get harsh light. I got the Vello Octa 8" softbox. It's a great addition to a flash.