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Thread: Best Manual Lensometers

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    Best Manual Lensometers

    Can anyone recommend some good ones? Has anyone heard of Speedway SD-175 or is it some crazy off brand? Thanks!

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    OptiBoard Professional Kujiradesu's Avatar
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    Quote Originally Posted by Trina View Post
    Can anyone recommend some good ones? Has anyone heard of Speedway SD-175 or is it some crazy off brand? Thanks!
    Marco LM-6E and the unsinkable B&L 70.

    The B&L 70 can be brought back from the brink so if you have some time and patience you can get parts and restore it to working condition after buying it for a bargain.

    The LM-6E is just an all-around good machine. It has a prism compensation ring, and its the last model that they used good materials on. Later models are made of a chinsy plastic that feel like you could break in half if you sneeze hard enough. Hope that was helpful.
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    Yes, thank you! That was super helpful! :)

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    Ghost in the OptiMachine OptiBoard Silver Supporter Quince's Avatar
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    Our Marco is considered our better lensometer. We have a 2nd one that is some no-name from China. The Marco is much better constructed and reads a higher range of power but the knock-off is actually more accurate. It is also considerably newer. I will not attempt to adjust the Marco- I just compensate the difference in my head.
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    Thanks! I was wondering about the no-name brands.
    Quote Originally Posted by Quince View Post
    Our Marco is considered our better lensometer. We have a 2nd one that is some no-name from China. The Marco is much better constructed and reads a higher range of power but the knock-off is actually more accurate. It is also considerably newer. I will not attempt to adjust the Marco- I just compensate the difference in my head.

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    Ghost in the OptiMachine OptiBoard Silver Supporter Quince's Avatar
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    Quote Originally Posted by Trina View Post
    Thanks! I was wondering about the no-name brands.
    The biggest issue we have run into with that one is the bulb isn't really held in place by anything and has had to be resoldered over time. It is quite finicky, but if you keep it nice and stable, is quite easy to read.
    Have I told you today how much I hate poly?

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    Rising Star walleye's Avatar
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    The American Optical 603B lensometer and the B&l Model 70 are the best. They are heavy duty and will last a life-time. Look on ebay and you might find a used one.

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    Quote Originally Posted by walleye View Post
    The American Optical 603B lensometer and the B&l Model 70 are the best. They are heavy duty and will last a life-time. Look on ebay and you might find a used one.
    I've found two of the AO 603B but I can't tell if they have a prism compensator. Do you know if they do? The seller hasn't responded to me. Thanks!

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    Rising Star walleye's Avatar
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    I think there is a retainer to put in prisms for prism compensation. I'll look tomorrow at the office.

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    I have a Marco LM101 and it is a tank. Definitely no chinzy plastic pieces in this thing and I got it about 6 months ago. I love it. Super accurate.

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    Quote Originally Posted by walleye View Post
    I think there is a retainer to put in prisms for prism compensation. I'll look tomorrow at the office.
    Thanks! The seller is being less than cooperative with his responses. Honestly, just for that reason I think I'll purchase elsewhere.

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    Quote Originally Posted by Trina View Post
    Thanks! The seller is being less than cooperative with his responses. Honestly, just for that reason I think I'll purchase elsewhere.
    #facebook stick to optiboard, the truth ALWAYS floats to the top

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    Is the Topcon LM-25 a good lensmeter?

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    A B&L model 70 is the best in my opinion. 2nd best is the Marco LM - 101. However the B&L is the better choice.

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