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diff --git a/tutorial/tour.ipynb b/tutorial/tour.ipynb
index 061fb78..a009917 100644
--- a/tutorial/tour.ipynb
+++ b/tutorial/tour.ipynb
@@ -228,6 +228,67 @@
     "The given $R_f$ value is typical for Axon, HEKA, and Sutter."
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "13f7b3c8-ac0f-4c59-8b0a-4e082e81487a",
+   "metadata": {},
+   "source": [
+    "## Level 2: Fast capacitance and compensation\n",
+    "\n",
+    "<img src=\"./img/vc-level-2-post.png\" style=\"margin:auto\" />\n",
+    "\n",
+    "This level adds \n",
+    "\n",
+    "- A pipette (conventional patch clamp) or parasitic (planar patch clamp) capacitance $C_p$, and its amplifier estimate $C^*_p$\n",
+    "\n",
+    "Compared to level 3, only equations 5 and 7 are changed:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "7c991600-9683-45a6-8545-5c480c518215",
+   "metadata": {},
+   "source": [
+    "\\begin{align}\n",
+    "2.5 && \\dot{V}_\\text{rc} &= \\frac{R_f I_1 + b - V_\\text{rc}}{(\\tau_\\text{rc} - a)} \\\\\n",
+    "    && a &= \\alpha R_s^* (C_p - C_p^*) \\\\\n",
+    "    && b &= R_f (C_p - C_p^*) \\frac{\\dot{V}_s - \\beta \\dot{V}_e}{1 - \\beta}\n",
+    "\\end{align}\n",
+    "\n",
+    "\\begin{align}\n",
+    "2.7. && \\tau_o \\dot{I}_\\text{obs} = I_1 + (C_p - C_p^*) \\dot{V}_r - I_\\text{obs}\n",
+    "\\end{align}"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "c6cd0eeb-a098-44e9-8865-8584ce368ce9",
+   "metadata": {},
+   "source": [
+    "New parameters are\n",
+    "\n",
+    "| Parameter | Units | Meaning                                         | Typical value |\n",
+    "|-----------|-------|-------------------------------------------------|---------------|\n",
+    "| $C_p$     | pF    | True pipette or parasitic capacitance, unknown  | 5 pF          |\n",
+    "| $C_p^*$   | pF    | Estimated fast capacitance, read from amplifier | 5 pF          |\n",
+    "\n",
+    "Note that the true capacitance artefact is more complex.\n",
+    "Similarly, most amplifiers have more complex compensation, including multiple capacitances and time delays."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9c446bf1-678e-4502-a12e-e22b411c4217",
+   "metadata": {},
+   "source": [
+    "## Level 1: Stray capacitance\n",
+    "\n",
+    "The level 1 model adds a \"stray capacitance\" over the measurement resistor $R_f$.\n",
+    "It is equivalent to level 0, described below, but uses 1st order approximations for all filters.\n",
+    "\n",
+    "Full equations can be found in the \"simplifications\" notebook."
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "f0982179-7da0-49d0-ae2f-a1ce724babe7",
@@ -235,16 +296,17 @@
    "source": [
     "## Level 0: The full model\n",
     "\n",
-    "Next, we jump straight to the Level 0 model.\n",
-    "\n",
     "<img src=\"./img/vc-level-0.png\" style=\"margin:auto\" />\n",
     "\n",
     "This level adds\n",
     "\n",
-    "- A pipette (conventional patch clamp) or parasitic (planar patch clamp) capacitance $C_p$, and its amplifier estimate $C^*_p$\n",
-    "- A stray capacitance on the measurement resistor $\\tilde{C}_f$, and a finite op-amp speed with time constant $\\tau_a$\n",
+    "- A finite op-amp speed with time constant $\\tau_a$\n",
     "- A two-part output filter, where \"Filter 1\" affects series resistance compensation, while \"Filter 2\" does not.\n",
-    "- Arbitrary equations for the output filters and the stimulus filter (allowing e.g. Bessel formulations)"
+    "- Arbitrary equations for the output filters and the stimulus filter (allowing e.g. Bessel formulations)\n",
+    "\n",
+    "And, as in level 1, we now have\n",
+    "\n",
+    "- A stray capacitance on the measurement resistor $\\tilde{C}_f$"
    ]
   },
   {
@@ -313,8 +375,6 @@
     "\n",
     "| Parameter     | Units | Meaning                                            | Typical value |\n",
     "|---------------|-------|----------------------------------------------------|---------------|\n",
-    "| $C_p$         | pF    | True pipette capacitance, unknown                  | 5 pF          |\n",
-    "| $C^*_p$       | pF    | Estimated pipette capacitance, read from amplifier | 5 pF          |\n",
     "| $\\tilde{C}_f$ | pF    | Compensated stray capacitance on measuring resistor, unknown | 5e-3 pF |\n",
     "| $\\tau_a$      | ms    | Time constant of measurement op-amp, unknown       | 13e-6 ms      |\n",
     "| $t_r$         | ms    | Stimulus filter setting                            | 0.04 ms       |\n",
@@ -339,7 +399,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.13.12"
+   "version": "3.13.13"
   }
  },
  "nbformat": 4,