CityCyclingEdinburgh Forum » Events, rides etc.

PY: Does My Lumen Look Big in This?

(20 posts)
  • Started 12 years ago by Uberuce
  • Latest reply from Wilmington's Cow

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  1. Uberuce
    Member

    As inspired by Min in 559's 'Seriously Fed Up' thread.

    Functional bit: turn up a Peter's Yard and there will be a pool of trustworthy cyclists who can take your steed up and down MMW for a bit so you can judge if your lights are right. Also we could do a swapshop thing and bring in all the old lights we've nto got round to disposing of.

    Fun bit: coffee, cake, blether.

    Date: Need to wait until it's still dark at 8-ish, but not so late as to be pointless, I guess.

    Posted 12 years ago #
  2. Friday 9th or 16th should work for that. Count me in!

    Posted 12 years ago #
  3. Dave
    Member

    IMO it's too light in the mornings now. PY after hours?

    On the other hand, morning PY still good for sociable cake of course...

    Posted 12 years ago #
  4. Nelly
    Member

    +1 for after work for full retina blasting effect

    Posted 12 years ago #
  5. steveo
    Member

    Evening might be better at Harrison park along the bit of canal, very little other light.

    Posted 12 years ago #
  6. kaputnik
    Moderator

    Anyone got a photography light-meter?

    Posted 12 years ago #
  7. There's an app for that...

    Posted 12 years ago #
  8. crowriver
    Member

    Can't do Fridays*, and apart from my dynamo lights, don't think I have anything that bright anyway!

    *-Half term was the exception.

    Posted 12 years ago #
  9. SRD
    Moderator

    i think this is a good idea. was thinking yesterday, that we have opinions on other people's lights, but it's hard to know what your own look like. i second harrison park, followed by pub, as long as everyone promises to walk home safely after....

    Posted 12 years ago #
  10. amir
    Member

    I find evenings harder for meet-ups but I have got an interesting-ish front light: a B & M Ixon IQ. It's pretty bright with two settings but the beam is quite well shaped. I supplement it with a Fenix torch if required.

    Are we going to have a bell-themed PY meet?

    Posted 12 years ago #
  11. wingpig
    Member

    My camera's video mode can be set to keep the exposure constant so if I can get to this I'd be happy to let it film the procession to get a vague idea of relative brightnesses/dazzlingnesses of different light-outputting devices. The shine-against-a-plain-wall-from-the-same-distance test is tricky to arrange when there are dynamo systems involved.

    Posted 12 years ago #
  12. fimm
    Member

    Can't we just drink coffee sometime?
    ;-)

    Posted 12 years ago #
  13. If the weather is as it was for the tandem meet... then yes. And I seem to recall you were the only one not drinking coffee... :P

    Posted 12 years ago #
  14. Arellcat
    Moderator

    I wasn't drinking coffee either. Tea, Earl Grey, hot, as Jane from next-door-to-LBB knows of me now.

    If the digital SLR brigade is thinking of getting involved, perhaps it's time for a proper CCE Light Testing evening, along the lines of the yACF event in 2008? We could make it a "bring your own bike and bring your own lights", to compare each one as used by the owner, as well as an objective, scientific, like-for-like comparison.

    Posted 12 years ago #
  15. Uberuce
    Member

    I unwittingly roped a passer-bike into a two-person Harrison Park testing session just now.

    He had the reflector spokes that Kappers and Rugg were Tweeting about the other day, and after he'd turned off to go down the path by the playpark in West, I cheekily turned my handlebars to see how well they showed up.

    The answer, disappointingly, is not at all. I know I had the angle right since the Scotchlite trim on his tabard and pannier were shining with that unnatural ferocity the stuff only gives when your eye is near-parallel with your light source, but I couldn't see any of the spokes.

    Pretty sure it wasn't just because his tyres were obscuring them, but this is exactly the kind of thing I have in mind: getting our empirical hats on and experimenting away.

    So:

    1)PY as normal on either the 9th or 16th
    2)Evening meet in some dark central place. Harrison Park/canal; Innocent; Holyrood Park; Hermitage, etc

    @Arellcat if it's going to have a good turnout, I hereby beseech Dave to turn up with his trailer. I suspect but need to test that white binbags with lights inside will make awesome Tron trails. Two Carry Freedoms will allow red lights in the second trailer(mine) for awesomer ones.

    Posted 12 years ago #
  16. kaputnik
    Moderator

    Spoke (and Ortlieb) reflectors in camera-phone LED;

    Posted 12 years ago #
  17. Uberuce
    Member

    That's one of the tweets I had in mind, so I was expecting that, but didn't get any of it. The difference is so dramatic that I wonder whether that bloke just has rubbish reflectors or whether his tyre wall and/or mudguards were obscuring after all. Your photo makes it pretty clear those spokes are working the internal reflection magic.

    One thing I would like to see is whether my bodgey ski glove cuffs work. I know they reflect, but I don't know if they obviously look like the hands of a cyclist indicating to turn, or just like confusing white shapes near a red bike light.

    Posted 12 years ago #
  18. Its_Me_Knees
    Member

    @Kaputnik "Anyone got a photography light-meter?"

    Moi. An old Weston Master V with diffuser cone. Should work...

    Posted 12 years ago #
  19. fimm
    Member

    @Willmington's Cow, this was because I had to go to work, which is not conveniently situated for PY... I will drink coffee next time...

    @Arellcat, that thread is interesting, thank you for that. It would be fun to do something similar.

    Posted 12 years ago #
  20. Just need to leave earlier in the morning.... ;)

    Posted 12 years ago #

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