I've been building a G system over the past year or so. G1 and G2 bodies and 28, 45 and 90. I have a small TLA 140 flash that is actually surprisingly useful, especially for fill and is easy to pack along due to its size. I've got a number of likely flash units that are generic, non-dedicated units but in checking out the TLA units that Contax has made over the years, I feel like I'm finding conflicting information. I just received a TLA 30 that I found on eBay and while it was a bit bulkier once in my hands than expected, I thought it would serve when I needed a bit more oomph and to also take advantage of the dedicated/TTL features. The TLA 200 makes me a bit nervous with its low relector position and doesn't seem to add much worthwhile power, but? In testing it (TLA 30) with a flash meter, it doesn't seem to function in the TTL mode. Does anyone know if it should? It measures slightly weaker (1/2 to 1/3 stop) than the 2 general auto settings and in general, doesn't seem to fit the general quality level expected from things labeled "Contax". Does anyone have a copy of the manual in case I'm overlooking something obvious? Even the thyristor behavior seems a bit suspect as on low level flashes, it seems to need to recover more than I would expect. Can anyone direct me to some information on this that I haven't found or answer from their experiences? Thanks!