fix(makernote): register Canon parser in TIFF parser

api_integration_test.go

@@ -305,6 +305,40 @@ func TestIntegration_CR2(t *testing.T) {
 				{Name: "JPEGInterchangeFormatLength", Value: uint32(13120)},
 			},
 		},
+		{
+			Name:          "Canon",
+			ExactTagCount: 28,
+			Tags: []imxtest.TagExpectation{
+				{Name: "CameraSettings"},
+				{Name: "FocalLength"},
+				{Name: "FlashInfo"},
+				{Name: "ShotInfo"},
+				{Name: "ImageType", Value: "Canon EOS-1Ds Mark II"},
+				{Name: "FirmwareVersion", Value: "Firmware Version 1.0.2"},
+				{Name: "OwnerName"},
+				{Name: "SerialNumber", Value: uint32(304421)},
+				{Name: "CameraInfo"},
+				{Name: "CustomFunctions"},
+				{Name: "ModelID", Value: uint32(2147484040)},
+				{Name: "AFInfo"},
+				{Name: "ThumbnailImageValidArea"},
+				{Name: "SerialNumberFormat"},
+				{Name: "0x0019"},
+				{Name: "OriginalDecisionDataOffset"},
+				{Name: "PersonalFunctions"},
+				{Name: "PersonalFunctionValues"},
+				{Name: "CanonFileInfo"},
+				{Name: "AFPointsInFocus1D"},
+				{Name: "ProcessingInfo"},
+				{Name: "MeasuredColor"},
+				{Name: "SensorInfo"},
+				{Name: "VRDOffset"},
+				{Name: "ColorData"},
+				{Name: "CRWParam"},
+				{Name: "ColorInfo"},
+				{Name: "0x4004"},
+			},
+		},
 	})
 	if result.Failed() {
 		for _, err := range result.Errors {

internal/parser/tiff/ifd.go

@@ -572,6 +572,14 @@ func (p *Parser) handleMakerNote(r *imxbin.Reader, fileReader io.ReaderAt, entry
 		return
 	}
 
+	// Always add raw MakerNote tag (for backward compatibility)
+	*dirTags = append(*dirTags, parser.Tag{
+		ID:       parser.TagID("ExifIFD:0x927C"),
+		Name:     "MakerNote",
+		Value:    data,
+		DataType: "UNDEFINED",
+	})
+
 	// Detect manufacturer and parse
 	// exifBase is 0 for standard TIFF files (TIFF header at file start)
 	// TODO: For JPEG files, this would need to be the APP1 EXIF header offset

internal/parser/tiff/tiff.go

@@ -10,6 +10,7 @@ import (
 	"github.com/gomantics/imx/internal/parser/icc"
 	"github.com/gomantics/imx/internal/parser/iptc"
 	"github.com/gomantics/imx/internal/parser/tiff/makernote"
+	"github.com/gomantics/imx/internal/parser/tiff/makernote/canon"
 	"github.com/gomantics/imx/internal/parser/tiff/makernote/sony"
 	"github.com/gomantics/imx/internal/parser/xmp"
 )
@@ -44,8 +45,9 @@ type Parser struct {
 func New() *Parser {
 	registry := makernote.NewRegistry()
 	// Register MakerNote handlers in priority order (most specific first)
-	// Sony must be registered before Canon (Canon has no header, is fallback)
+	// Canon must be LAST (no header, validated by IFD structure, is fallback)
 	registry.Register(sony.New())
+	registry.Register(canon.New())
 
 	return &Parser{
 		icc:       icc.New(),