# LD_3DE4_Radial_Fisheye_Degree_8

> 3DEqualizer lens distortion (fisheye8).

| Node | LD_3DE4_Radial_Fisheye_Degree_8 |
|---|---|
| Menu | Transform › LD_3DE4_Radial_Fisheye_Degree_8 |
| **Names in each format** | |
| .oink comp (JSON) | `"type": "OC_N_ld3de_fisheye8"` |
| .nk script | `LD_3DE4_Radial_Fisheye_Degree_8` ([how .nk import works](/docs/nuke-users/nk-import)) |
| Python | `nuke.createNode("LD_3DE4_Radial_Fisheye_Degree_8")` |
| Assistant (MCP) | `create_node(type="LD_3DE4_Radial_Fisheye_Degree_8")` |
| Tab search | `ld_3de4_radial_fisheye_degree_8`, or its initials `ld3de4rfd8` |

![LD_3DE4_Radial_Fisheye_Degree_8 properties](/shots/nodes/ld3de_fisheye8@2x.webp)

## Inputs and outputs

| Port | Name | Type |
|---|---|---|
| input 0 | Image | image |
| output 0 | Image | image |

## Knobs

Panel tab **Ld3de_fisheye8**, in panel order.

| Knob | Label | Type | Default | Range / values | .nk knob | Description |
|---|---|---|---|---|---|---|
| `direction` | direction | menu | `undistort` | distort, undistort | `direction` |  |
| `mode` | output mode | menu | `image` | image, STMap | `mode` |  |
| `filter` | filter | menu | `cubic` | cubic (Cubic), bilinear (Linear), impulse (Impulse) | `filter` |  |
| `field_of_view_xa_unit` | field_of_view_xa_unit | float | `0` | 0 to 1 | `field_of_view_xa_unit` |  |
| `field_of_view_ya_unit` | field_of_view_ya_unit | float | `0` | 0 to 1 | `field_of_view_ya_unit` |  |
| `field_of_view_xb_unit` | field_of_view_xb_unit | float | `1` | 0 to 1 | `field_of_view_xb_unit` |  |
| `field_of_view_yb_unit` | field_of_view_yb_unit | float | `1` | 0 to 1 | `field_of_view_yb_unit` |  |
| `tde4_focal_length_cm` | tde4_focal_length_cm | float | `1` | 0.1 to 10 | `tde4_focal_length_cm` |  |
| `tde4_custom_focus_distance_cm` | tde4_custom_focus_distance_cm | float | `100` | -5 to 1000 | `tde4_custom_focus_distance_cm` |  |
| `tde4_filmback_width_cm` | tde4_filmback_width_cm | float | `0.8` | 0.1 to 10 | `tde4_filmback_width_cm` |  |
| `tde4_filmback_height_cm` | tde4_filmback_height_cm | float | `0.6` | 0.1 to 10 | `tde4_filmback_height_cm` |  |
| `tde4_lens_center_offset_x_cm` | tde4_lens_center_offset_x_cm | float | `0` | -5 to 10 | `tde4_lens_center_offset_x_cm` |  |
| `tde4_lens_center_offset_y_cm` | tde4_lens_center_offset_y_cm | float | `0` | -5 to 10 | `tde4_lens_center_offset_y_cm` |  |
| `tde4_pixel_aspect` | tde4_pixel_aspect | float | `1` | 0.1 to 10 | `tde4_pixel_aspect` |  |
| `Distortion_Degree_2` | Distortion_Degree_2 | float | `0` | -1 to 1 | `Distortion_Degree_2` |  |
| `Quartic_Distortion_Degree_4` | Quartic_Distortion_Degree_4 | float | `0` | -1 to 1 | `Quartic_Distortion_Degree_4` |  |
| `Degree_6` | Degree_6 | float | `0` | -1 to 1 | `Degree_6` |  |
| `Degree_8` | Degree_8 | float | `0` | -1 to 1 | `Degree_8` |  |

### Other knobs (Python, .nk and the assistant; not on the panel)

| Knob | Label | Type | Default | Range / values | .nk knob | Description |
|---|---|---|---|---|---|---|
| `gl_color` | Viewer Controls Color | float ×3 | `0, 0, 0` | 0 to 1 |  |  |
| `postage_stamp_frame` | Static Frame | int | `1` | -2147483648 to 2147483647 |  |  |
| `lifetimeStart` | Lifetime Start | int | `0` | -2147483648 to 2147483647 |  |  |
| `lifetimeEnd` | Lifetime End | int | `100` | -2147483648 to 2147483647 |  |  |
| `useLifetime` | Use Lifetime | boolean | `false` |  |  |  |
| `cached` | Cached | boolean | `false` |  |  |  |
| `bookmark` | Bookmark | boolean | `false` |  |  |  |
| `dope_sheet` | Dope Sheet | boolean | `false` |  |  |  |
| `clone_group` | Clone Group | string |  |  |  |  |
| `link_source` | Link Source | string |  |  |  |  |
| `link_overrides` | Link Overrides | string |  |  |  |  |
| `split_views` | Split Views | string |  |  |  |  |


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Sources: opencomp_core/nodes/transform/lens_3de.py, opencomp_electron/src/components/properties/knobSchema.ts, opencomp_core/nk/mapping.py