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Magnetic adapters for wet lenses

Discussion in 'Tips and Techniques' started by LeeCat, Feb 7, 2019.

  1. LeeCat

    LeeCat Angel Fish

    # of Dives: 100 - 199
    Location: South Africa
    32
    1
    8
    I want to find out from the public about magnetic adapters for wet lenses, for example: Howshot M67 Magnetic Lens Mount with Lock or like this: US $35.0 |NiteScuba M67 Magnetic Mount with Lock for macro wide angle fisheye lens adapter filter holder underwater camera housing-in Photo Studio Accessories from Consumer Electronics on Aliexpress.com | Alibaba Group

    How reliable is such an adapter?
    Does it provide good axial alignment between the main lens and the wet lens?
    How significant is the change in the distance between the main lens and the wet lens in terms of working distance and image quality?
     
  2. Barmaglot

    Barmaglot Manta Ray

    # of Dives: 100 - 199
    Location: Israel
    644
    247
    43
    I used the Howshot one with a Sony A6300/16-50mm in a Meikon housing and their wet dome. It has a flange ensuring the correct axial alignment, and magnets' hold is quite secure. Haven't observed any effect on image quality, but I haven't tried it with a 'real' lens, neither wide nor close-up.
     

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