I also have an extension ring 40 and an extension ring 20 for sale, again hardly used. The Ext 40 is $185 and the 20mm is $125. Orings look good.
Price for all three parts is only $1150! Payment via cc or paypal, and will include FREE ground shipping to the lower 48 states.
Email: Jack@OpticalOceanSales.com or call 800-359-1295 or 206-284-1142.
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This AR multi-coated glass dome port is ideal for wide-angle photography with a digital SLR camera. It comes with a port case and a dome port cover.
- Greatly reduces peripheral aberration (distortion) so images are clear from corner to corner.
- Efficient light transmission sharpens images.
- Made of glass so it sheds water droplets, excellent for clear over/under shots (half above water, half below).
Construction Corrosion-resistant aluminum alloy (anodized, anti-reflection coating on the inner surface)
- Dome: Optical glass BK7 (AR multi-coated)
- Shade: ABS resin Depth rating 60m Dimensions 181 x 78mm / 7.2 x 3.1 inch Weight Approx. 950g / 33.2oz