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The Underwater Club Forums Equipment and Techniques Dome acrylic or glass Reply To: Dome acrylic or glass

  • Nicolas

    Administrator
    2025-09-11 at 9:33 am

    hi @ppina

    In most shooting situations, you will not be able to tell the difference between an acrylic and glass dome port.

    If I have to choose between the perfect dome size in acrylic and a glass dome that is oversized, i’ll get the acrylic.

    However, here are 2 important considerations:

    -When you shoot into the sunball, you sometimes see reflections (e.g. reflections of your lens) which makes the photo unusable. Good glass/dome ports come with quality coating that can avoid this problem. Zen glass domes are pretty good for that.

    -Glass domes are harder to scratch than acrylic, however when you get a bad scratch (one that shows in the photos), your only option is to get the glass replaced. Back to Zen again (I like their domes), I had my 100mm mini domes sent twice to them for glass replacement over a 10 years period, and it costed only a fraction of the total dome cost.