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  1. J

    Using KOWA TSN-EX16S (1.6x) Extender with a TSN-823?

    Hi, the extender is mainly used with the 613 and a 30 wide to make it a 48 wide... great views unless the light is really bad. When I still had the current 20-60 small body zoom, I also tried that with extender for 96x. The 613 was starting to struggle a bit with that - still good enough for an...
  2. J

    Using KOWA TSN-EX16S (1.6x) Extender with a TSN-823?

    Hi, while I own neither an 820 series scope nor the adapter, I would try the following after getting my EX16S from the 613... - screw the TSN-EC1A with its female thread (see image in link) onto the accessory thread around the EP mount on your 820 body...
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