Spectro stuff for sale, best place to advertise?

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  • #574129
    Tony Rodda
    Participant

    Hi guys,

    Where’s the best place to advertise spectro gear?  (Gratings, prisms/wedges, mirrors, lenses, fibres, beamslitters, etc).  Some of the parts obviously lend themselves to telescope/guider building but generally they’re quite specialist.  About three dozen bits and bobs (some new and still sealed) that I acquired a year ago and are surplus to my current efforts. Most are Thorlabs, Edmunds, or Optimetrics but I’ve a bundle of new Surplus Shed lenses too.

    I detest Ebay but UK BuySell seems to be mainly ‘telescope/mount’ orientated.

    Anyone got any experience?  Any ideas welcome.

    Regards

    #580011
    Robin Leadbeater
    Participant

    Hi Tony,

    the ARAS forum has a new for sale section now, “Petites Annonces”  though there are not really many constructors there.

    The astronomical_spectroscopy yahoo group probably has more self builders and I see there was a recent ad there for an L200 for example, you could check with Ken who owns the group if it would be acceptable

    Also Stargazers Lounge perhaps where there is some interest in spectroscopy ?

    Robin

    #580014
    owen brazell
    Participant

    There are a wide variety of things for sale on UKastrobuysell and as it is free there is no harm in putting it up there. It is not all telescopes and mounts.

    Owen

    #580015
    Tony Rodda
    Participant

    Regards Tony

    #580017
    Paul Leyland
    Participant

    Why not list your stuff here?  Some of us may be interested in it.

    #580018
    Robin Leadbeater
    Participant

    Hi Paul,

    I think he sort of did 😉  You could PM for details

    #580020
    Derek Robson
    Participant

    Tony.  I may get to the stage of getting a second Watec video camera, this time, for meteor spectroscopy. I would need a grating and fittings to place in front of the lens.  I’m sure my astro colleagues can help on the fitting aspect, but if you have the items I’d need for that type of work, I would be interested.

    #580021
    Paul Leyland
    Participant

    Fair point.

    I was more thinking that having a price list here would be helpful to all concerned.

    P.M. already sent.

    #580027
    Tony Rodda
    Participant

    Yes, a Star Analyser seems to be the first step everyone takes.  It mounts as an eyepiece filter would. 

    I don’t have one but….

    I have a new 1″ Thorlabs 4* wedge prism (and mounting ring) that can be placed in front of the Star Analyser to improve resolution.  The Star Analyser variant usually retails at £46 plus £8+ for the mount.  I’ll probably ask half.  I’m not sure that you need this until you have some experience with the ‘simple’ Star Analyser first. 

    I haven’t used this configuration but I’m sure other more experienced members can advise.  Email/PM if you need to chat.

    Regards   T

    #580029
    Robin Leadbeater
    Participant

    Meteor spectroscopy is possible with the Star Analyser and a wide field camera

    http://www.threehillsobservatory.co.uk/astro/spectra_20.htm

    but a grating with higher dispersion would be better  eg 300 or even 600 l/mm depending on the lens focal length and sensor size. Bill Ward would be able to advise on the optimum setup

    https://britastro.org/user/213

    Cheers

    Robin

    #580041
    Jack Martin
    Participant

    Tony,

    Please put your list up here.

    Regards,

    Jack

    Essex UK

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