First, full disclosure....I designed and manufacture the DIGIDAPTER®
1. Material....The DIGIDAPTER is CNC machined from solid billet aluminum. While this is much more expensive to manufacture than the molded plastic of the DCB II, the benefits can not be understated. "Aircraft quality" tolerances can be maintained, critical for digiscoping and high magnifications.
2. Repeatability....The DCB II somewhat repeats it's location but only front to back and not rotationally. The DIGIDAPTER has precision locating pins that locate your camera every time perfectly. Set it up once and it forever repeats. Change the battery or card and it goes back on exactly where you left it.
3. Rigidity.....Again, plastic flexes and aluminum is much more rigid. When you hang a heavy camera on a DCB II it will flex and that flex effects alignment and photo quality. In addition, the hinging camera platform on the DCB that may sound like a great feature adds more places for movement and misalignment.
4. While I prefer and recommend mirrorless cameras, The DIGIDAPTER can handle DSLR's with pancake lenses and even larger lenses with the optional table extender.
5. Convenience....You can use your scope all day and when you want a photo, you simply slide the DIGIDAPTER on and shoot. It aligns quickly and perfect every time. If you want to change to portrait, simply rotate and shoot. No clamps to loosen and re-tighten. It's simple and fast.
6. Cost....You pay less and get a precision machined adapter.
7. Made in the USA
There are other differences but these are the ones I am most asked about. There are plenty of pictures, review links and videos on my web site at
http://www.digiscopeadapter.com
Feel free to contact me if you have any questions.
Paul