There always seem to be a lot of questions around Side Imaging, Down Imaging, and 2D sonar so I thought I would post some screenshots of the various images from lakes here in AB.
First up is a 2D image over a DI image. You can see that the image on 2D is less clearly defined, but it has the classic arch that most are used to seeing. Below that is DI, which is much sharper and shows three fish. Two close together on the left and one a little further to the right.
Next up are a couple schools of baitfish. You can see the shadows of the schools to either side of the school. The distance between the school and the shadow indicates how high the fish are off the bottom. The top school is actually suspended quite high. The bottom school is fairly tight to the bottom as the shadows are closer to the school.
This shot shows a school of larger fish (likely walleyes given their size and proximity to a drop off). These fish appear to be slightly right of the boat and suspended 2-3 feet off the bottom based on the distance to their sonar shadows further right.
Here’s a shot of some rock piles on SI.
Here are some fish off on the right, fairly close to the bottom.
Here’s a tire rim off on the right. If you zoom in you can actually see detail in the rim. Not fish, but shows the detail you get.
SI, DI, and 2D sonar images.
Threaded Mode
