Lately I'm having fun exploring the 'classic glass' characteristics of older manual lenses. I prefer to use them on my X-E3 as these lenses perfectly match and balance with the rangefinder body style.
The Canon 50mm f/1.4 LTM is a ‘classic fast fifty’, aka 'The Japanese Summilux'. It's sharp, it has character, it has nice and smooth bokeh and it's built from all metal and glass. And it looks so amazing! The 50mm focus length on a Fujifilm X body turns into a 75mm equivalent.
Not that strong as on the Helios 44M-4, but the Canon also shows a little bit of ‘swirly bokeh’ which I like.