diff --git a/Core/camera.c b/Core/camera.c
index 61eda89..0c6539f 100644
--- a/Core/camera.c
+++ b/Core/camera.c
@@ -2,7 +2,7 @@
 
 uint8_t GB_camera_read_image(GB_gameboy_t *gb, uint16_t addr)
 {
-    if (gb->camera_registers[GB_CAMERA_FLAGS] & 1) {
+    if (gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS] & 1) {
         /* Forbid reading the image while the camera is busy. */
         return 0xFF;
     }
@@ -18,16 +18,24 @@ uint8_t GB_camera_read_image(GB_gameboy_t *gb, uint16_t addr)
 
         long color = gb->camera_get_pixel_callback? gb->camera_get_pixel_callback(gb, x,y) : (rand() & 0xFF);
 
-        /* Color is multiplied by the multiplier register. */
-        /* It is unknown what register 1 does, but changing bits 2-3 from 0x4 to 0x8 seems equivalent to adding 0x2000
-           to the multiplier. Is it related to actual exposure time? */
-        unsigned long multiplier_bias = (gb->camera_registers[GB_CAMERA_UNKNOWN_FLAGS] & 0xF) * 0x800;
-        color = color * ((gb->camera_registers[GB_CAMERA_MULTIPLIER_HIGH] << 8) + gb->camera_registers[GB_CAMERA_MULTIPLIER_LOW] + multiplier_bias) / 0x3000;
+        static const double gain_values[] = {0.8809390, 0.9149149, 0.9457498, 0.9739758,
+                                            1.0000000, 1.0241412, 1.0466537, 1.0677433,
+                                            1.0875793, 1.1240310, 1.1568911, 1.1868043,
+                                            1.2142561, 1.2396208, 1.2743837, 1.3157323,
+                                            1.3525190, 1.3856512, 1.4157897, 1.4434309,
+                                            1.4689574, 1.4926697, 1.5148087, 1.5355703,
+                                            1.5551159, 1.5735801, 1.5910762, 1.6077008,
+                                            1.6235366, 1.6386550, 1.6531183, 1.6669808};
+        /* Multiply color by gain value */
+        color *= gain_values[gb->camera_registers[GB_CAMERA_GAIN_AND_EDGE_ENCHANCEMENT_FLAGS] & 0x1F];
+
+
+        /* Color is multiplied by the exposure register to simulate exposure. */
+        color = color * ((gb->camera_registers[GB_CAMERA_EXPOSURE_HIGH] << 8) + gb->camera_registers[GB_CAMERA_EXPOSURE_LOW]) / 0x1000;
 
         /* The camera's registers are used as a threshold pattern, which defines the dithering */
         uint8_t pattern_base = ((x & 3) + (y & 3) * 4) * 3 + GB_CAMERA_DITHERING_PATTERN_START;
 
-        /* Todo: I have absolutely no reason to assume that this does not go backwards! */
         if (color < gb->camera_registers[pattern_base]) {
             color = 3;
         }
@@ -60,16 +68,17 @@ void GB_set_camera_update_request_callback(GB_gameboy_t *gb, GB_camera_update_re
 
 void GB_camera_updated(GB_gameboy_t *gb)
 {
-    gb->camera_registers[GB_CAMERA_FLAGS] &= ~1;
+    gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS] &= ~1;
 }
 
 void GB_camera_write_register(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
 {
     addr &= 0x7F;
-    if (addr == GB_CAMERA_FLAGS) {
-        if ((value & 1) && !(gb->camera_registers[GB_CAMERA_FLAGS] & 1) && gb->camera_update_request_callback) {
+    if (addr == GB_CAMERA_SHOOT_AND_1D_FLAGS) {
+        value &= 0x7;
+        if ((value & 1) && !(gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS] & 1) && gb->camera_update_request_callback) {
             /* If no callback is set, ignore the write as if the camera is instantly done */
-            gb->camera_registers[GB_CAMERA_FLAGS] |= 1;
+            gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS] |= 1;
             gb->camera_update_request_callback(gb);
         }
     }
@@ -85,7 +94,7 @@ void GB_camera_write_register(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
 uint8_t GB_camera_read_register(GB_gameboy_t *gb, uint16_t addr)
 {
     if ((addr & 0x7F) == 0) {
-        return gb->camera_registers[GB_CAMERA_FLAGS];
+        return gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS];
     }
     return 0;
 }
\ No newline at end of file
diff --git a/Core/camera.h b/Core/camera.h
index 3bb8697..9c009f6 100644
--- a/Core/camera.h
+++ b/Core/camera.h
@@ -3,10 +3,10 @@
 #include "gb.h"
 
 enum {
-    GB_CAMERA_FLAGS = 0,
-    GB_CAMERA_UNKNOWN_FLAGS = 1,
-    GB_CAMERA_MULTIPLIER_HIGH = 2,
-    GB_CAMERA_MULTIPLIER_LOW = 3,
+    GB_CAMERA_SHOOT_AND_1D_FLAGS = 0,
+    GB_CAMERA_GAIN_AND_EDGE_ENCHANCEMENT_FLAGS = 1,
+    GB_CAMERA_EXPOSURE_HIGH = 2,
+    GB_CAMERA_EXPOSURE_LOW = 3,
     GB_CAMERA_DITHERING_PATTERN_START = 6,
     GB_CAMERA_DITHERING_PATTERN_END = 0x35,
 };