Excerpt: I basically bought this unit to facilitate the remote flash capability of my Sony DSC-RX10. It is a handy little flash, but perhaps not as sturdily constructed as I would like. It has a little "dial" on one side marked "tele" that by turning it onto the "tele" setting is intended to adjust the flash profile to improve shots of things that are a bit beyond the range of the standard setting.Frankly the difference it appeared to make was, to me, pretty marginal.
Pros: Consistent Output, Easy To Use, Fast Recycling, Lightweight
Excerpt: Other reviewers gave plenty of warning that this is a flash with very limited capabilities and I won't claim to be surprised that its low output imposes considerable limitations. I bought it for the small size and light weight benefits with the intention of improving the lighting when taking (very amateur) portraits. To that end it is more or less adequate although the control over the bounce angle is poorer than expected.
Excerpt: Bought the F20M specifically to use with my NEX-6, as an older 3rd party ISO-style flash does not trigger at all. I've been shooting in manual mode, using the camera's TTL with the flash to do action and portraiture in a variety of rooms, the largest of which is roughly 24'x24' (garage-sized), and using both the stock 16-50 as well as a SEL18200 and the 16mm pancake.
Pros: Consistent Output, Fast Recycling, Lightweight
Excerpt: This flash is the same as the HVL-f20AM flash, with the addition of the new MSI attachment. Unfortunately the height of the new flash is the same as the HVL-F20AM with the IISO to MSI adaptor.