Audio recording start trigger via USB with the LS-100 recorder is a nice feature. No more need for in-camera sync tracks and secondary microphones.

I'm wondering whether new Firmware update of OLYMPUS OMDs with focus bracketing will work together with Auto-Blend Layers/Stack Images extension of ElementsXXL....

http://www.thepluginsite.com/products/elementsxxl/screenshots.htm#panel

V4 firmware released

http://www.getolympus.com/us/en/upgrade?ref=CJ

Ver.4.1 firmware

• The stability of the image stabilizer's operations has been improved.
• The problem in which the external flash would not fire when shooting in RC mode has been corrected.

http://www.olympus.co.jp/en/support/imsg/digicamera/download/software/firm/e1/

In case anyone was interested I did a little test and compared the video modes of the EM 1 to the E-M5 Mark II

https://johnbrawley.wordpress.com/2016/02/15/olympus-em1-for-video/

JB

Again $799 deal, with used being $500

https://www.amazon.com/Olympus-Mirrorless-Digital-Camera-3-Inch/dp/B00EQ07PG2/

Firmware Ver.4.2

• Macro Flash STF-8 is supported.
• Electronic Flash FL-900R is supported.
• Improved stability of exposure when shooting videos.
• Focus stacking function is now supported by the following lenses: 　
  • M.ZUIKO DIGITAL ED 30mm F3.5 Macro
  • M.ZUIKO DIGITAL ED 7-14mm F2.8 PRO
  • M.ZUIKO DIGITAL ED 8mm F1.8 Fisheye PRO
  • M.ZUIKO DIGITAL ED 300mm F4.0 IS PRO

http://cs.olympus-imaging.jp/en/support/imsg/digicamera/download/software/firm/e1/#fmzdl