Hello everyone! I recently went to the 2015 Canadian F1 GP in Montreal, and I had a chance to use my Olympus 40-150mm f2.8 PRO, Olympus 1.4x Teleconverter, and the Olympus red dot sight (EE-1) with my OMD EM5. Overall the setup was easy to carry (I use a Think Tank Urban Approach 15 backpack) and easy to use. The lens and teleconverter combo provided sharp images, much sharper than the Panasonic 100-300mm. I would've preferred a bit more reach like the Panasonic, but the image quality is only acceptable at 300mm on the Panasonic. To capture the fast cars, I put the camera on manual and manually prefocused on a spot. I used an aperture of f8.0 to provide a wide depth of field, a shutter speed of 1600, and auto ISO. The red dot sight really helped when I tracked the cars around the bend. The only issue I found with the red dot sight is that it was hard to calibrate without a tripod... it was difficult to balance the camera steady with one hand and calibrating the setup with the other. I'm not a professional motorsports photographer (I hope to be someday!), but I hope you will enjoy these images. Maybe I will see more micro 4/3 users at the races in the future! Here is the entire gallery: http://www.peteryeestudios.com/2015_canadian_f1 Cheers, Pete Red Bull F1 team. Rush hour. 2008 & 2014 F1 World Champion, Lewis Hamilton. 2010 - 2013 F1 World Champion, Sebastian Vettel. Sunday afternoon drive.