TZTouch XL – Vertical Stretching When Zooming on Fish Finder View

[Discreet]

Hello everyone,

I’m currently using a NavNet TZtouch XL 10x display with a Furuno Sounder DFF3 and a B265 transducer. When we go fishing, I like to keep the fish finder view on full screen with a single frequency selected.

What I’d like to do is zoom in on the last 10–15 meters of the water column while keeping the rest of the screen in full view. The only way I’ve found to do this is by disabling Auto Range, then using pinch-to-zoom and dragging down to focus on the lower section.

However, I’ve noticed that this zoom only scales along the Y-axis, not proportionally along both X and Y, which causes the image to stretch vertically. As a result, the fish arches—especially for predator species—look distorted and are hard to interpret.

Is there any way to correct this behavior? It’s quite annoying when trying to read the sonar properly. Maybe I have a setting misconfigured

Thank you very much for your help!

Best,


Discreet

 

[CaptSpike]

I’m not sure about today’s FF as I’m just getting back to Furuno but you used to be able to zoom a specified distance of the water column and move that range anywhere in the column you wanted it. I imagine that option should still exist

 

[Discreet]

I’m not sure about today’s FF as I’m just getting back to Furuno but you used to be able to zoom a specified distance of the water column and move that range anywhere in the column you wanted it. I imagine that option should still exist

hi Captspike thaks for your answer. I haven't found yet in my navnet that option. the only option is to bottom zoom but this is also splitting the display in 2 and havinf in 1 side 100% view + zoomed viez in the left side. I woudl like to have a full screen with the bottom zoomed out but proportionally not stretched in vertical.

 

[CaptSpike]

https://www.furunousa.com/-/media/sites/furuno/document_library/documents/manuals/public_manuals/tzt10x_13x_16x_22x_24x_bbx_operators_guide.pdf

Check this out. Scroll to zoom section. It doesn’t look like it will display as full screen, just split screen

 

[Discreet]

I saw it, if you deselect the auto range you can but it only zooms in vertical ( stretching the full image vertically) this is not a zoom for me it´s a stretch. I supose it´s a huge bug?

 

[Quitsa]

I saw it, if you deselect the auto range you can but it only zooms in vertical ( stretching the full image vertically) this is not a zoom for me it´s a stretch. I supose it´s a huge bug?

Did you try using "marker zoom"? That allows you to select a slice of the water column and as I recall, preserves the proportions. For example, you can select the area between 80 meters and 100 meters and just see that section.