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  1. R

    Still using your HR/5?

    I'm not disagreeing with you Ed, I just think (perhaps erroneously!) that in this particular case Fo ~= xFo and Fe ~= xFe. The mechanical differences are something else as you point out. BTW, how large do you think the sweet spot is in your Audubon 804s? Is there much variation between them...
  2. R

    Still using your HR/5?

    Thank you for your reply Ed. Regarding the 804ED oculars being of different focal length to those in the standard 804, the difference cannot be much. Placing my 804ED next to my father's 804FMC I'd wager that the prisms are the same and the barrels on the two binoculars only differ in length...
  3. R

    Still using your HR/5?

    I snuck out to an airfield on the fringes of town this evening for a little stargazing between astronomical twilight and the Moon rising. I took three Swift binoculars with me - one of my 826MC glasses, my 804ED and my father's 804FMC - although I spent most of my time alternating between the...
  4. R

    Still using your HR/5?

    G'day Wes, Where there are Swift binoculars being discussed I will probably be floating around (usually reading rather than posting). I like the 804ED very much. With luck I might this week even get the required combination of clear skies, not being tired and not having to get up early the...
  5. R

    Still using your HR/5?

    I'm not sure how well these pictures show what you want to know but I cannot think of a better setup (feel free to make suggestions!). Here are some pictures of the objectives. In both cases the amount of recess is very small (too small IMHO). At the front edge of the objective both...
  6. R

    Still using your HR/5?

    After all the help you've given me, sure thing Ed. The s/n on the 804ED is 963221. Nicolas Crista found them for me about a year ago. I actually have two Audubon 10x50 (model 826) glasses, one marked "Kestrel" with s/n 934807 and one not with s/n 930113. I don't know if their prism covers...
  7. R

    Still using your HR/5?

    I'm another who is still using his HR/5 binoculars (a MC 826 and an 804ED) in rotation with other glasses. Even when you have too many, letting go of binoculars you really like is hard.
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