I recently purchased a TSN-604 and have been really impressed with the scope, for image quality and weight. I'm curious about the history, production years, sample variation, etc. Does anyone have any information to share or sources that I can check? Any comments about the design of the scope would also be appreciated.
I have not seen much posted about the TSN-603 or TSN-604. I did read that they were very close to the same price as the TSN-660, and maybe even priced higher. I did see a post that eluded to a magazine review that the TSN-603/4 was rated better than the TSN-660 but I don't know much about sample variation with either.
For what it's worth, I have owned two Nikon ED82-A, one EDIII, and one EDIII-A and used those as a baseline for the TSN-604.
I have not seen much posted about the TSN-603 or TSN-604. I did read that they were very close to the same price as the TSN-660, and maybe even priced higher. I did see a post that eluded to a magazine review that the TSN-603/4 was rated better than the TSN-660 but I don't know much about sample variation with either.
For what it's worth, I have owned two Nikon ED82-A, one EDIII, and one EDIII-A and used those as a baseline for the TSN-604.
