Dear I In Ser's,
Thank you for all the commentary, gee this is getting some comments. These comments should be included in this ad ? I am not sure it's the right place for them.
My I ask a question, when was the last time you visited Japan, and when was the last time you visited Kunming. If the answer is not "recent" why is there so much banter on I In S about where and what. I visit Japan (for Business) every 10 - 12 weeks, and have done this for over thirty years. Plus also visited Kunming a month ago. If you want a list of who makes what in Japan, Taiwan and China I suggest contacting myself via PM may be a more suitable strategy. You would get some big surprises, particularly with Tak, as they make less of their system that any of you know of.
There are dozens of optical products manufacturer's that I know in Japan, many of them are companies that support Vixen, Takahashi and such. You would not recognise the names of any of them, as they are not direct suppliers, they support the
OE market. One of these is the lens supplier in this case. If I mentioned some of their names here this would merely create further enquiry within this ad with further questions about them and what they do. And make this ad look even more like a technical thread. These Japanese OE suppliers (I visit at least two, and usually four on each trip to Japan) are not your standard Japanese telescope suppliers, they do not have good English You need to speak their language. But - and this is the critical point - they DO sell to people who visit them and review in with them in their native tongue. Kagamatsu are one of the largest lens makers in the world, but unless you speak and read Japanese you would not know of them. They also support the world's largest camera manufacturers as well.
I recommend that those with more questions contact me via PM instead of making this ad look like it should be moved to a technical forum
Trust this clarifies.
Rgds,
Astromelb.