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  1. G

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

    Thanks Joachim. I now have acquired a TSN-EX16S and it works very well, at least in initial trials, with my 823. To make it work you simply unscrew the furled ring, as in your photo, and it then screws directly onto the thread surrounding the eyepiece. The EC1A adapter is then fitted onto one of...
  2. G

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

    Thanks Joachim. Sounds promising!
  3. G

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

    Thanks Joachim – that looks promising. I haven't actually got at EX16S, but wanted to check how it might work before I tried to acquire one! But good to see how you can remove the inner part to reveal a wider thread which should attach to the larger 820. Do you notice a big drop-off in quality...
  4. G

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

    Has anyone tried using the 1.6 EX16S extender (the one for the 663) with an 823? According to the Kowa website it will work "in combination with a TSN-EC1A adaptor fitted onto the Kowa eyepiece (see: https://www.kowaoptic.com/media/pdf/f2/9b/b4/Kowa-System-S-A4-English.pdf). I have the adapter...
    • Grando
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    • Replies: 5
    • Forum: Kowa
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