Match Technical recently introduced two new ThumbsUp versions designed for the Leica M typ 240 camera. Both models are now available – the regular version is EP-10S (check pricing and availability at Leica Store Miami, PopFlash, eBay, Amazon UK):
The CSEP-10S model is designed for use with an external optical viewfinder (check pricing and availability at Leica Store Miami, PopFlash, eBay):