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  1. #21
    Join Date
    Jan 2003
    Location
    Suffolk, VA
    Posts
    2,774

    Default Re: Magnifying glass for grafting

    Quote Originally Posted by jim lyon View Post
    That looks really nice but I am wondering if a 100 watt halogen bulb might throw off a lot of heat.
    Jim,

    That could very well be an issue. I don't have personal experience with that, but halogen bulbs do throw a lot of heat. An LED would be far better.

    I actually bought this one in December: http://www.brushymountainbeefarm.com...oductinfo/239/

    It seems okay, but not super great quality - it appears to be built in Russia. I'll give it a go this spring. My son tried it and said he could see the bottom of the cells better without it - but of course 10 year old eyes can count the hairs on a flea.
    Horseshoe Point Honey -- http://localvahoney.com/

  2. #22
    Join Date
    Aug 2003
    Location
    Raleigh, NC, USA
    Posts
    770

    Default Re: Magnifying glass for grafting

    Quote Originally Posted by sfisher View Post
    Db do you have the name of the app that you used. I have download 3 of them and thay all stink. I can't even see my hand in them. They won't focus.
    The app is called "MagLight+Magnifying Glass" (abreviated on my iphone with "Mag.Light"). I downloaded it from the "App Store" at the iTunes website. At the time I downloaded it, the app was free --- now it looks like they're asking 99 cents for it. Here's a link for it https://itunes.apple.com/us/app/magn...406048120?mt=8
    Triangle Bees

  3. #23
    Join Date
    Jan 2009
    Location
    Cookeville, TN, USA
    Posts
    4,149

    Default Re: Magnifying glass for grafting

    Quote Originally Posted by Vance G View Post
    I found the Optivisor with glass lenses, wide choice of powers and diopter for $42 in the maxiaids.com catalog. Is that a good price?
    I use a 2x optivisor with light- works great.
    Since '09-25H-T-Z6b

  4. #24
    Join Date
    Jul 2010
    Location
    jackson county, alabama, usa
    Posts
    4,926

    Default Re: Magnifying glass for grafting

    2x usually equates to +5.00
    journaling the growth of a treatment free apiary started in 2010. 20+/- hives

  5. #25
    Join Date
    Aug 2003
    Location
    Raleigh, NC, USA
    Posts
    770

    Default Re: Magnifying glass for grafting

    Here is a magnified image of comb cells made using my iPhone Mag.Light app:
    I put a speck of sawdust in the middle, slightly damaged cell to simulate an egg or small larva --- the white speck is at the bottom right wall if the cell.

    Barry: I think we need an "Applied Technology" forum. The smart phone technology is quite amazing and has many potential applications in all aspects of beekeeping.
    Triangle Bees

  6. #26
    Join Date
    Jul 2011
    Location
    Crenshaw County, Alabama
    Posts
    1,999

    Default Re: Magnifying glass for grafting

    Quote Originally Posted by squarepeg View Post
    the working distance or focal lengths:

    3 diopters = 13.5"
    4 diopters = 10"
    5 diopters = 8"

    that's how far away the larva would have to be from the front of the maginifier to be clear.
    A little age on the thread, but...

    Howdy K, hope things are well up your way, it's warming up down here in Crenshaw! I was wondering about magnifiers as I might try some grafting a little later on. My eyes ain't as young as they used to be and never were the best so I'm looking for a little help. I've found some clip-on, flip-up lenses on eBay that come in a variety of powers...+1.00, +1.25, +1.50, +1.75, +2.00, +2.25, +2.50, +2.75, +3.00, +3.50, +4.00, +4.50, or +5.00. These "look" like diopter measurements but I'm not really sure. If they are diopters would the +3.0 be good enough for grafting...I'm thinking of the working distance but need magnification,too. Harbor Freight also has a cheap set of flip-ups that one reviewer said was a +3.0, though build quality was a bit "suspect". Would losing some working distance (moving closer) with stronger lens be worth the stronger magnification?

    Thanks,
    Ed

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