Jon Anderson

Selling a Reefnet Fiber Optic snoot. Includes 1 fiber optic, 2 different tip sizes, and 1 Inon Z240 mount. In very good condition. Asking $100 USD or best offer. Buyer pays for shipping.

Interesting that you are getting such different results with the extension rings. This is a photo of the minimum focus distance with the 30mm extension ring described above. The distortion of my iphone lens makes it look like more than 10.5" but it was between 10" and 11" from the front of the port. I focused the lens at the nearest focus then moved the housing until the Titleist logo on the front of the golf ball was in focus.

I have also been playing with the TTArtisans 100mm Bubble Bokeh lens a little bit over the last 6 months and dove with it a few times in Monterey. Hoping to shoot it more soon! Like any manual focus lens its definitely a bit challenging to shoot underwater but has nice bokeh if your up for a challenge. It sounds like focusing is much easier on these lenses with mirrorless bodies with good focus peaking. Here is my setup right now: - Fotodiox M42 to F-mount adapter (non-optical, ~2mm flange to flange) - Fotodiox F-mount extension tubes (14mm tube + adapters, actually measures 30mm flange to flange) - Custom 3d printed focus gear that I designed I used it on my D850 in Nauticam housing with the same Macro 60 port + 30mm extension ring that I use with my Nikon 105mm macro lens. At full lens extension (closest focus) there is just barely a gap between the port glass and the front of the lens but it doesn't seem to touch. With this setup golf ball sized subjects fill the frame and at minimum focus the distance between the lens and the subject is about 10.5 in (270 mm) Here is an uncropped example image from the setup described above. Shot at f/2.8, 1/250 sec, ISO 64 https://www.jonandersonphoto.com/California/Central-California/i-jnjrNt2/A This is another image where I used a Kraken +6 diopter in front of the setup described above and cropped slightly. Shot at f/2.8, 1/250 sec, ISO 31 https://www.jonandersonphoto.com/California/Central-California/i-pq7tFdS/A I am thinking about revising my setup to use the more common Kenko extension tubes. I effectively have 32mm of extension ring with the adapter, I think others I typically use less extension ring but hard to say without knowing the thickness of their M42 adapter. Also likely will try to use a ND 0.6 (2 stop) filter in the future to have a bit more exposure headroom. I hope to share more on my website once I have time to get it organized.

Decided to jump over here from Wetpixel. Love shooting underwater at home in Monterey as well as around the world. Enjoy designing and building gadgets and technology for underwater imaging as well.