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Stub Mandrel

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Posts posted by Stub Mandrel

  1. Gucki 2.3 x 40 widebinos 28°

    These arrived today, of course it's been raining with 100% cloud cover so I've no Idea what they're like to look through. Seem very well made, very light, and came with a nice little carry case.

    Add a head strap and they would make a great SteamPunk accessory

  2. 1. Miyauchi Bj-100 20/37x100

    2. Helios Apollo 15x70

    3. Oberwerk Ultra 10x50

    4. Opticron BGA 10x42

    5. Vortex Raptor 6.5x32

    6. VixenSG 2.1x42

    7. Strathspey 15x70 (actually 15x62.5)

    8. Strathspey Marine 10x50 (actually 10x41)

    9. Frank Nipole 10x50 (yes that is a hinge-mount tripod adaptor fixed to it)

    10. Zenith 10x50 (belonged to my late father-in-law -sentimental value only)

    11. No-name (well, would you admit to it?) 12-60x70 (actually ?-??x49) zoom - with "the latest ruby coatings" possibly the worst binocular I've ever had the misfortune to look through. Kept for when I give talks, as an example of everything to avoid. No, I didn't buy it; it was donated.

    Ok, I get it - you are the human fly and have compound eyes...

    • Like 1
  3. I doubt you'd be getting good enough conductivity. There is a reason why those wires are made of gold..

    If conductivity was the requirement, they'd be made of silver not gold, its so they are easier to attach and don't corrode.

    The silver paint has ~ 1/400 the conductivity of gold but as the cross-sectional area will be many times the diameter of the wire and current path will be very short, I don't imagine the difference would be significant (possibly detectable by the people who use gold plated battery clamps for their in-car HI-FI).

    Any minor difference should be compensated for by control frames.

    I think its actually doing it that's the challenge.

  4. In every instance, the Canon S110 always falls short of that seen during a live session.

    As a spectacle wearer I can vouch for the fact that the eye/brain combination is very good at doing on-the-fly RGB alignment. It can be fooled, illuminated TESCO signs in red and blue and the HSBC logo on a computer screen both show movement of the two coloured parts when I move my head - in fact the red spelling wiggle under TESCO moves side to side as I shake my head! But when the colours are overlaid, the eye correct (e.g. the word TESCO in white doesn't split into RGB except at the extreme edge of my vision, even though the red bit must be moving as much as the wiggle!)

    • Like 1
  5. Great pic!

    I was able to find the moons in photo paint. You might try something like this:

    Create a circular mask around the planet (it can have a wide margin)

    Invert the mask

    Stretch the histogram until the moons appear, the background will become grey

    move the black point until the background matches that around the planet.

    You can tweak the histogram.

    Clear the mask

    For images where the moons are more obvious, you can just mask around them and use the same technique. I did this to bring out Mars and Regulus on my shots of this morning's conjunction.

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