I have a Yashica 635 and I love it. I've got a copy with the Yashikor triplet. I've been wanting to get a new 6x6 TLR. I started looking for a Rolleicord, but recently ran into several Yashicas (Mat 124g, and D) rocking a Yashinon. I wanted some inputs as in how much better does the Yashinon gets and on deciding whether a 124g would be better than a D. I'm leaning towards the D, because I just feel it's better built, but that's just me.