I have some good Nikon close up filters with a 52 mm thread.
If I would adapt them to the TM700 46 mm thread with some step-ups, would that decrease the quality of the picture? I mean more then having them on a 52 mm thread lens.

I found a ton of possibilities on Ebay: http://shop.ebay.com/?_from=R40&_trksid=m38&_nkw=46+52+mm+step+up+

Is there a brand that somebody could recommend?