I use the 16-55 with an XT-1 for flash, portraiture and event photography with 10-24 and 55-200; but use an XT-10 with 18-135 for travel. I had the primes and swapped for 16-55 which as noted is not OIS but covers 80% of needs. Also had the 18-55 OIS for travel but felt I needed a bit more reach and carry only one lens for travel.