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  1. #1

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    Using meopta opemus III with mf.

    Hello

    I just recenty bought opemus III enlarger and it light's more from the center than from the edge of the picture. Could someone give some advice how to fix it. Here is the technical info of the enlarger:

    Meopta 0pemus III

    Enlarging apparatus for enlarging from negatives 6x6 cm and smaller.

    Lens: Belar 4.5/75.
    Condenser: two-lens of 105 mm diameter.
    Lamp: opal 100 W.
    Enlargement: max. 6.7x onto base plate.
    Weight: 7.9 kg.
    Years of production: 1969-75.
    Picture

    Could it be caused by that there seems to be a 50 mm belar lens instead of the 75mm listed above or could the lamp be wrong kind. I put a picture of the lamp to attachment.

    Sorry about bad english.
    Attached Thumbnails Attached Thumbnails MVC-141F.JPG  

  2. #2
    Thomas Wagner's Avatar
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    Lense would probably be the reason. I put my 50 mm in mine and looked at full opening. It does indeed fall off. But, then I use the 50 for 35 mm only. The 75, on a cone shaped lense mount does not fall off at all. Some one told me to use 50 mm for small negatives only, so that is the plan.

    Tom
    I was going to try pornography, but could not find any used pornographs

  3. #3

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    The lens in your attachment appears to be a household lamp. Your description calls for an opal lamp which would be a ph211 or ph212 depending on wattage.
    You would have vignetting if you're attempting to use a 50mm lens for 6cm film. Yes, you would need a longer focal length.

  4. #4

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    Thanks for the quick answers. So thers a lens and a lamp in my shopping list. Great. Just when i thought that I got an enlarger for cheap.

  5. #5

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    Would a 75mm lens be long enough?
    Last edited by Toni H.; 01-20-2005 at 12:29 PM. Click to view previous post history.

  6. #6
    clogz's Avatar
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    For 6x6 you had best use an 80mm lens.
    Regards
    Hans
    Digital is best taken with a grain of silver.

  7. #7
    Ole
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    An Anaret-S is cheap, and very very good.
    I use a 50mm for 35mm, and 80mm for MF. Both Anaret-S.
    -- Ole Tjugen, Luddite Elitist
    Norway

  8. #8

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    Indeed the lamp is not OK, should be an Opal lamp 75Watt or 100 Watt.

    Further the Belar lens quality is rather poor. For a small amount of money I can agree with Ole to go for the Anaret serie's from Meopta.
    It could be you have to change the lens plate: Belar: 23,5 mm , most modern Anaret lenses, the normally used 39mm diameter.

    Best regards,

    Robert

    www.FotohuisRoVo.nl

  9. #9
    rjr
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    Robert,

    we resolved that issue with Tony in the chatroom. 8)

    Meopta continues to make lenses with M23,5, the just sell them with a factory-installed M39 adapter theses days. Just like Schneider, some of theirs are actually M25.
    Tschüss,
    Roman

  10. #10

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    I bought an used anaret (not s) 80mm in mint condition. Can't wait to test it. Tomorrow I'm going to buy the 75w opal lamp. Thats the only option beside the 150w because my lamp dealer said that they don't sell the 100w anymore.

    I'm not sure but I think that the anaret s has a M39 mounting and the plain anaret has M23.5 (the one I bought is M23.5).

    If some one wants to use M39 lenses with meopta you can order a M39 lens plate for meopta enlargers from here.

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