To your question why Ikelite is not as popular- it's mostly about the ABS vs aluminum, and that they tend to be chunkier. Yes, this is a very compact housing (and you can't use all lenses as a result), but it still is a bigger box than it needs to be, with dead space above the camera body. All of their housings are boxes - that's a big part of what makes them cheaper to make and sell. Compare it to the Nauticam which is closer form hitting, though the overall measurements are bigger because the two handles are already part of the unit.
BTW, the Ikelite handle has a list price of 90 USD, so don't search too hard on ebay. With it, it looks difficult to take this thing into the water. Also not clear how you can attach a focus light on top.
It is, otoh, very hard to justify the huge Nauticam tax. Built to last forever, but the value of any housing for an outdated camera model is basically zip. You buy it like a new car - to use for a long time.
BTW, the Ikelite handle has a list price of 90 USD, so don't search too hard on ebay. With it, it looks difficult to take this thing into the water. Also not clear how you can attach a focus light on top.
It is, otoh, very hard to justify the huge Nauticam tax. Built to last forever, but the value of any housing for an outdated camera model is basically zip. You buy it like a new car - to use for a long time.