This product has been professionally used with an extension optic. The ability to capture motion and extract specific frames was a feature that made this device extremely useful. The work was exploratory in nature with 90 percent observation. Add Night Shot and that's it. I used it with car adapter. The block I bought from YANA works similarly. It doesn't have advanced optics, but all other features are there. Since I'm retired I don't use it for the same job. However, it works well for still video capture and other Hi8 "slideshow" transfers I've done. Great device for beginners or advanced users. Good price for a used item I might add. I will probably return to YANA.