منتجات كانون

هذه قائمة بمنتجات شركة كانون.

## الكاميرات
### كاميرات SLR
FD-mount SLR
* Canon FX عام 1964
* Canon FP عام 1964
* Canon Pellix عام 1965
* Canon FT QL عام 1966
* Canon Pellix QLعام 1966
* Canon TLعام 1968

**سلسلة F**
* Canon FTb عام 1971
* Canon FTbn عام 1973
* Canon EF عام 1973
* Canon TLb عام 1974
* Canon TX عام 1975
* Canon F-1n عام 1976
* Canon New F-1 عام 1981

**سلسلة A**
* Canon AE-1 عام 1976
* Canon AT-1 عام 1976
* Canon A-1 عام 1978
* Canon AV-1 عام 1979
* Canon AE-1 Program عام 1981
* Canon AL-1 عام 1982

**سلسلة T**
* Canon T50 عام 1983
* Canon T70 عام 1984
* Canon T80 عام 1985
* Canon T90 عام 1986
* Canon T60 عام 1990

### احترافية DSLR
280px|تصغير|Canon EOS 5D Mark II
* EOS 300D/Digital Rebel/Kiss Digital
* EOS 350D/Digital Rebel XT/Kiss Digital N
* EOS 400D/Digital Rebel XTi/Kiss Digital X
* EOS 450D/Rebel XSi/Kiss X2
* EOS 500D/Rebel T1i/Kiss X3
* EOS 550D/Rebel T2i/Kiss X4
* EOS 600D/Rebel T3i/Kiss X5
* EOS 650D/Rebel T4i/Kiss X6i
* EOS 1000D/Rebel XS
* EOS 1100D/Rebel T3
Semi-professional and mid-range cameras
* EOS D30
* EOS D60
* EOS 10D
* EOS 20D
* EOS 20Da
* EOS 30D
* EOS 40D
* EOS 50D
* EOS 60D
* EOS 60Da
Premium cameras
APS-C sensor
* EOS 7D
* Full-frame sensor
* EOS 5D
* EOS 5D Mark II
* EOS 5D Mark III
Professional cameras
* EOS-1D
* EOS-1Ds
* EOS-1D Mark II
* EOS-1Ds Mark II
* EOS-1D Mark II N
* EOS-1D Mark III
* EOS-1D Mark IV EOS-1D X

### الكاميرات المدمجة compact
compact-camera

280px|تصغير| Canon powershot A40
* Canon PowerShot S100
* Canon PowerShot S110
* Canon PowerShot S200
* Canon PowerShot S230
* Canon PowerShot S300
* Canon PowerShot S330
* Canon PowerShot S400
* Canon PowerShot S410
* Canon PowerShot S500
* Canon PowerShot SD10
* Canon PowerShot SD20
* Canon PowerShot SD30
* Canon PowerShot SD40
* Canon PowerShot SD100
* Canon PowerShot SD110
* Canon PowerShot SD200
* Canon PowerShot SD300
* Canon PowerShot SD400
* Canon PowerShot SD430
* Canon PowerShot SD450
* Canon PowerShot SD500
* Canon PowerShot SD550
* Canon PowerShot SD600
* Canon PowerShot SD630
* Canon PowerShot SD640
* Canon PowerShot SD700 IS
* Canon PowerShot SD750
* Canon PowerShot SD770 IS
* Canon PowerShot SD780 IS
* Canon PowerShot SD790 IS
* Canon PowerShot SD800 IS
* Canon PowerShot SD850 IS
* Canon PowerShot SD870 IS
* Canon PowerShot SD880 IS
* Canon PowerShot SD890 IS
* Canon PowerShot SD900
* Canon PowerShot SD940 IS
* Canon PowerShot SD950 IS
* Canon PowerShot SD960 IS
* Canon PowerShot SD970 IS
* Canon PowerShot SD980 IS
* Canon PowerShot SD990 IS
* Canon PowerShot SD1000
* Canon PowerShot SD1100 IS
* Canon PowerShot SD1200 IS
* Canon PowerShot SD1300 IS
* Canon PowerShot SD1400 IS
* Canon PowerShot SD3500 IS
* Canon PowerShot SD4000 IS
* Canon PowerShot SD4500 IS
* Canon PowerShot 110 HS
* Canon PowerShot 320 HS
* Canon PowerShot 520 HS

**سلسلة باور شوت **
* Canon PowerShot A5
* Canon PowerShot A5 Zoom
* Canon PowerShot A50
* Canon PowerShot A10
* Canon PowerShot A20
* Canon PowerShot A30
* Canon PowerShot A40
* Canon PowerShot A60
* Canon PowerShot A70
* Canon PowerShot A75
* Canon PowerShot A80
* Canon PowerShot A85
* Canon PowerShot A95
* Canon PowerShot A100
* Canon PowerShot A200
* Canon PowerShot A300
* Canon PowerShot A310
* Canon PowerShot A400
* Canon PowerShot A410
* Canon PowerShot A420
* Canon PowerShot A430
* Canon PowerShot A450
* Canon PowerShot A460
* Canon PowerShot A470
* Canon PowerShot A480
* Canon PowerShot A490 / A495
* Canon PowerShot A510
* Canon PowerShot A520
* Canon PowerShot A530
* Canon PowerShot A540
* Canon PowerShot A550
* Canon PowerShot A560
* Canon PowerShot A570 IS
* Canon PowerShot A580
* Canon PowerShot A590 IS
* Canon PowerShot A610
* Canon PowerShot A620
* Canon PowerShot A630
* Canon PowerShot A640
* Canon PowerShot A650 IS
* Canon PowerShot A700
* Canon PowerShot A710 IS
* Canon PowerShot A720 IS
* Canon PowerShot A800
* Canon PowerShot A1000 IS
* Canon PowerShot A1200
* Canon PowerShot A2000 IS
* Canon PowerShot A2200
* Canon PowerShot A3200 IS
* Canon PowerShot A3300 IS
* Canon Powershot A3400 IS

**سلسلة باور شوت G**
* Canon PowerShot G1
* Canon PowerShot G2
* Canon PowerShot G3
* Canon PowerShot G5
* Canon PowerShot G6
* Canon PowerShot G7
* Canon PowerShot G9
* Canon PowerShot G10
* Canon PowerShot G11
* Canon PowerShot G12
* Canon PowerShot G1 X

**سلسلة باور شوت S**
* Canon PowerShot S1 IS
* Canon PowerShot S2 IS
* Canon PowerShot S3 IS
* Canon PowerShot S5 IS
* Canon PowerShot S10
* Canon PowerShot S20
* Canon PowerShot S30
* Canon PowerShot S40
* Canon PowerShot S45
* Canon PowerShot S50
* Canon PowerShot S60
* Canon PowerShot S70
* Canon PowerShot S80
* Canon PowerShot S90
* Canon PowerShot S95
* Canon PowerShot S100
* Canon PowerShot S110
* Canon PowerShot SX1 IS
* Canon PowerShot SX10 IS
* Canon PowerShot SX20 IS
* Canon PowerShot SX30 IS
* Canon PowerShot SX40 HS
* Canon PowerShot SX100 IS
* Canon PowerShot SX110 IS
* Canon PowerShot SX120 IS
* Canon PowerShot SX130 IS
* Canon PowerShot SX150 IS
* Canon PowerShot SX200 IS
* Canon PowerShot SX210 IS
* Canon PowerShot SX220 HS
* Canon PowerShot SX230 HS

## عدسات
280px|تصغير|The 70-200 mm F2.8L lens
### الزووم

#### زاوية واسعة جدا
Ultra-wide-angle
* Canon EF 8-15mm lens 8-15mm f/4L USM fisheye
* Canon EF 16-35mm lens|16-35mm f/2.8L USM
* 16-35mm f/2.8L II USM
* Canon EF 17-35mm lens|17-35mm f/2.8L USM
* Canon EF 17-40mm lens|17-40mm f/4.0L USM
* Canon EF 20-35mm lens|20-35mm f/2.8L

#### اساسية
Standard
* Canon EF 24-70mm lens|24-70mm f/2.8L USM
* Canon EF 24-70mm lens|24-70mm f/2.8L II USM
* Canon EF 24-70mm lens|24-70mm f/4L IS USM
* Canon EF 24-105mm lens|24-105mm f/4.0L IS USM
* Canon EF 28-70mm lens|28-70mm f/2.8L USM
* Canon EF 28-80mm lens|28-80mm f/2.8-4.0L USM

#### تيلي فوتو
Telephoto
* Canon EF 28-300mm lens|28-300mm f/3.5-5.6L IS USM
* Canon EF 35-350mm lens|35-350mm f/3.5-5.6L USM
* Canon EF 50-200mm lens|50-200mm f/3.5-4.5L
* Canon EF 70-200mm lens|70-200mm f/4.0L USM
* Canon EF 70-200mm lens|70-200mm f/4.0L IS USM
* Canon EF 70-200mm lens|70-200mm f/2.8L USM
* Canon EF 70-200mm lens|70-200mm f/2.8L IS USM
* Canon EF 70-200mm lens|70-200mm f/2.8L IS II USM
* Canon EF 70-300mm lens|70-300mm f/4-5.6L IS USM
* Canon EF 80-200mm lens|80-200mm f/2.8L
* Canon EF 100-300mm lens|100-300mm f/5.6L
* Canon EF 100-400mm lens|100-400mm f/4.5-5.6L IS USM
* Canon EF 200-400mm lens|200-400mm f/4L IS USM 1.4x Extender

### القياسية
Prime
#### الزاوية العريضة
Wide-angle
* Canon EF 14mm lens|14mm f/2.8L USM
* Canon EF 14mm lens|14mm f/2.8L II USM
* Canon EF 24mm lens|24mm f/1.4L USM
* Canon EF 24mm lens|24mm f/1.4L II USM
* Canon EF 35mm lens|35mm f/1.4L USM

#### قياسي وتقريب متوسط
Standard & medium telephoto
* Canon EF 50mm lens|50mm f/1.0L USM
* Canon EF 50mm lens|50mm f/1.2L USM
* Canon EF 85mm lens|85mm f/1.2L USM
* Canon EF 85mm lens|85mm f/1.2L II USM

#### العدسات المقربة
Telephoto
* Canon EF 135mm f/2 L USM lens|135mm f/2.0L USM
* Canon EF 200mm lens|200mm f/1.8L USM
* Canon EF 200mm lens|200mm f/2.0L IS USM
* Canon EF 200mm lens|200mm f/2.8L USM
* Canon EF 200mm lens|200mm f/2.8L II USM
* Canon EF 300mm lens|300mm f/2.8L USM
* Canon EF 300mm lens|300mm f/2.8L IS USM
* Canon EF 300mm lens|300mm f/2.8L IS II USM
* Canon EF 300mm lens|300mm f/4.0L USM
* Canon EF 300mm lens|300mm f/4.0L IS USM

#### تقريب كبير
Super telephoto
* Canon EF 400mm lens|400mm f/2.8L USM
* Canon EF 400mm lens|400mm f/2.8L II USM
* Canon EF 400mm lens|400mm f/2.8L IS USM
* Canon EF 400mm lens|400mm f/2.8L IS II USM
* Canon EF 400mm lens|400mm f/5.6L USM
* Canon EF 500mm lens|500mm f/4.5L USM
* Canon EF 500mm lens|500mm f/4.0L IS USM
* Canon EF 500mm lens|500mm f/4.0L IS II USM
* Canon EF 600mm lens|600mm f/4.0L USM
* Canon EF 600mm lens|600mm f/4.0L IS USM
* Canon EF 600mm lens|600mm f/4.0L IS II USM
* Canon EF 800mm lens|800mm f/5.6L IS USM
* Canon EF 1200mm lens|1200mm f/5.6L USM

### ماكرو
* Canon EF 100mm lens|100mm f/2.8L Macro IS USM
* Canon EF 180mm f/3.5L Macro USM lens|180mm f/3.5L Macro USM

### Tilt-shift
* Canon TS-E 17mm lens|17&nbsp;mm f/4.0L Tilt-Shift
* TS-E24mm f/3.5L|24mm f/3.5L Tilt-Shift
* 24&nbsp;mm f/3.5L II Tilt-Shift

## متعدد المهام
### سلسلة imageRUNNER
* Canon imageRUNNER C3200
* Canon imageRUNNER 1310
* Canon imageRUNNER 1630
* Canon imageRUNNER 1670F
* Canon imageRUNNER 2016
* Canon imageRUNNER 2230
* Canon imageRUNNER 2270
* Canon imageRUNNER C2570
* Canon imageRUNNER 2830
* Canon imageRUNNER 2870
* Canon imageRUNNER 3530
* Canon imageRUNNER 3570
* Canon imageRUNNER C3170U
* Canon imageRUNNER C3170i
* Canon imageRUNNER 4270
* Canon imageRUNNER 4570
* Canon imageRUNNER 5070
* Canon imageRUNNER 5570
* Canon imageRUNNER 6570
* Canon imageRUNNER C5870
* Canon imageRUNNER C6870
* Canon imageRUNNER 7086
* Canon imageRUNNER 7095
* Canon imageRUNNER 7105
* Canon imageRUNNER 8070
* Canon imageRUNNER 110
* Canon imageRUNNER 150vp
* Canon imageRUNNER 2022N
* Canon imageRUNNER Advance c5035
* Canon imageRUNNER Advance c5045
* Canon imageRUNNER Advance c5025
* Canon imageRUNNER Advance c5030
* Canon imageRUNNER Advance c7055
* Canon imageRUNNER Advance c7065
* Canon imageRUNNER Advance c9065
* Canon imageRUNNER Advance c9075

### سلسلة Laser
* Canon Color Laser Copier 1110
* Canon Color Laser Copier 1140
* Canon Color Laser Copier 1180
* Canon Color Laser Copier 3900
* Canon Color Laser Copier 3900+
* Canon Color Laser Copier 4000
* Canon Color Laser Copier 5100
* Canon LASER CLASS 2050P
* Canon LASER CLASS 310
* Canon LASER CLASS 510
* Canon LASER CLASS 710
* Canon LASER CLASS 730i
* FMF 2100 Facsimile System
* FMF 3100 Office Multifunctional System
* Canon Imagepress C1
* Canon Imagepress C6000
* Canon Imagepress C7000VP

### CanoScan
* LiDE
* CR
* DR
* imageCLASS
* IS
* F Series

## طابعات
### سلسلة BJ
* Canon BJ-5
* Canon BJ-10E
* Canon BJ-10EX
* Canon BJ-20
* Canon BJ-30
* Canon BJ-30v
* Canon BJ-100
* Canon BJ-130
* Canon BJ-130E
* Canon BJ-200
* Canon BJ-200E
* Canon BJ-200EX
* Canon BJ-220JC
* Canon BJ-220JC II
* Canon BJ-220JS
* Canon BJ-220JS II
* Canon BJ-230
* Canon BJ-300
* Canon BJ-330
* Canon BJ535PD
* Canon BJ895PD

### سلسلة BJC
* Canon BJC-50
* Canon BJC-55
* Canon BJC-70
* Canon BJC-80
* Canon BJC-85
* Canon BJC-85W
* Canon BJC-210
* Canon BJC-210SP
* Canon BJC-240
* Canon BJC-250
* Canon BJC-255SP
* Canon BJC-600
* Canon BJC-600e
* Canon BJC-610
* Canon BJC-620
* Canon BJC-800
* Canon BJC-1000
* Canon BJC-2000
* Canon BJC-2010
* Canon BJC-2100
* Canon BJC-2100SP
* Canon BJC-2110
* Canon BJC-3000
* Canon BJC-4000
* Canon BJC-4100
* Canon BJC-4200
* Canon BJC-4300
* Canon BJC-4400
* Canon BJC-4550
* Canon BJC-5000
* Canon BJC-5100
* Canon BJC-5500
* Canon BJC-6000
* Canon BJC-6100
* Canon BJC-6200
* Canon BJC-6200S
* Canon BJC-6500
* Canon BJC-7000
* Canon BJC-7100
* Canon BJC-8000
* Canon BJC-8200
* Canon BJC-8500

### سلسلة i
* Canon i70
* Canon i80
* Canon i250
* Canon i450
* Canon i450X
* Canon i455
* Canon i455X
* Canon i470D
* Canon i475D
* Canon i550
* Canon i550X
* Canon i560
* Canon i560X
* Canon i850
* Canon i860
* Canon i865
* Canon i900D
* Canon i905D
* Canon i950
* Canon i960
* Canon i965
* Canon i990
* Canon i6100
* Canon i6500
* Canon i9100
* Canon i9900
* Canon i9950
* Canon 50i
* Canon 80i
* Canon 450i
* Canon 455i
* Canon 470PD
* Canon 475PD
* Canon 550i
* Canon 560i
* Canon 850i
* Canon 860i
* Canon 865R
* Canon 900PD
* Canon 950i
* Canon 960i
* Canon 990i
* Canon 6100i
* Canon 6500i
* Canon 9100i
* Canon 9900i

### سلسلة SmartBase
* MPC190 aka F10
* MPC200 aka F20
* MPC360, MPC370, MPC390
* MPC400 aka F30 (based on S600)
* MPC600F aka F50 aka T-Fax 7960
* F60
* F80
### سلسلة MultiPASS
* 10
* C20
* C30
* C50
* C70
* C75
* C80
* C100
* C530
* C545
* C550
* C555
* C560
* C635
* C755
* C2500
* C3000
* C3500
* C5000

### سلسلة PIXMA
* Canon PIXMA iP1000
* Canon PIXMA iP1200
* Canon PIXMA iP1300
* Canon PIXMA iP1500
* Canon PIXMA iP1600
* Canon PIXMA iP1700
* Canon PIXMA iP1800
* Canon PIXMA iP1980
* Canon PIXMA iP2000
* Canon PIXMA iP2200
* Canon PIXMA iP2500
* Canon PIXMA iP2600
* Canon PIXMA iP2700
* Canon PIXMA iP3000
* Canon PIXMA iP3100
* Canon PIXMA iP3300
* Canon PIXMA iP3500
* Canon PIXMA iP3600
* Canon PIXMA iP4000
* Canon PIXMA iP4000R
* Canon PIXMA iP4200
* Canon PIXMA iP4300
* Canon PIXMA iP4500
* Canon PIXMA iP4600
* Canon PIXMA iP4700
* Canon PIXMA iP4800 (iP4830)
* Canon PIXMA iP4850
* Canon PIXMA iP4900 (iP4930)
* Canon PIXMA iP5000
* Canon PIXMA iP5200
* Canon PIXMA iP5200R
* Canon PIXMA iP5300
* Canon PIXMA iP6000D
* Canon PIXMA iP6100D
* Canon PIXMA iP6210D
* Canon PIXMA iP6220D
* Canon PIXMA iP6310D
* Canon PIXMA iP6320D
* Canon PIXMA iP6600D
* Canon PIXMA iP6700D
* Canon PIXMA iP7100
* Canon PIXMA iP7200 (iP7230)
* Canon PIXMA iP7500
* Canon PIXMA iP8100
* Canon PIXMA iP8500
* Canon PIXMA iP8600
* Canon PIXMA iP8760
* Canon PIXMA iP9910
* Canon PIXMA iP90
* Canon PIXMA iP90v
* Canon PIXMA iP100
* Canon PIXMA mini220
* Canon PIXMA mini320
* Canon PIXMA mini360
* Canon PIXMA iX4000
* Canon PIXMA iX5000
* Canon PIXMA iX6500 (iX6530)
* Canon PIXMA iX7000
* Canon PIXMA MP110
* Canon PIXMA MP130
* Canon PIXMA MP140
* Canon PIXMA MP150
* Canon PIXMA MP160
* Canon PIXMA MP170
* Canon PIXMA MP180
* Canon PIXMA MP190
* Canon PIXMA MP210
* Canon PIXMA MP220
* Canon PIXMA MP230
* Canon PIXMA MP240
* Canon PIXMA MP250
* Canon PIXMA MP258
* Canon PIXMA MP260
* Canon PIXMA MP270
* Canon PIXMA MP280
* Canon PIXMA MP287
* Canon PIXMA MP360
* Canon PIXMA MP370
* Canon PIXMA MP375R
* Canon PIXMA MP390
* Canon PIXMA MP450
* Canon PIXMA MP460
* Canon PIXMA MP470
* Canon PIXMA MP480
* Canon PIXMA MP490
* Canon PIXMA MP493
* Canon PIXMA MP495
* Canon PIXMA MP500
* Canon PIXMA MP510
* Canon PIXMA MP520
* Canon PIXMA MP530
* Canon PIXMA MP540
* Canon PIXMA MP550
* Canon PIXMA MP560
* Canon PIXMA MP600
* Canon PIXMA MP600R
* Canon PIXMA MP610
* Canon PIXMA MP620
* Canon PIXMA MP630
* Canon PIXMA MP640
* Canon PIXMA MP700
* Canon PIXMA MP710
* Canon PIXMA MP730
* Canon PIXMA MP740
* Canon PIXMA MP750
* Canon PIXMA MP760
* Canon PIXMA MP780
* Canon PIXMA MP790
* Canon PIXMA MP800
* Canon PIXMA MP800R
* Canon PIXMA MP810
* Canon PIXMA MP830
* Canon PIXMA MP950
* Canon PIXMA MP960
* Canon PIXMA MP970
* Canon PIXMA MP980
* Canon PIXMA MP990
* Canon PIXMA MG2100
* Canon PIXMA MG2200
* Canon PIXMA MG2440
* Canon PIXMA MG2470
* Canon PIXMA MG3100
* Canon PIXMA MG3200
* Canon PIXMA MG4100
* Canon PIXMA MG4200
* Canon PIXMA MG5100
* Canon PIXMA MG5200
* Canon PIXMA MG5300
* Canon PIXMA MG5400
* Canon PIXMA MG5500
* Canon PIXMA MG5740
* Canon PIXMA MG6100
* Canon PIXMA MG6200
* Canon PIXMA MG6300
* Canon PIXMA MG8100
* Canon PIXMA MG8200
* Canon PIXMA MX300
* Canon PIXMA MX310
* Canon PIXMA MX320
* Canon PIXMA MX330
* Canon PIXMA MX340
* Canon PIXMA MX350
* Canon PIXMA MX360
* Canon PIXMA MX370
* Canon PIXMA MX410
* Canon PIXMA MX420
* Canon PIXMA MX430
* Canon PIXMA MX510
* Canon PIXMA MX700
* Canon PIXMA MX710
* Canon PIXMA MX7600
* Canon PIXMA MX850
* Canon PIXMA MX860
* Canon PIXMA MX870
* Canon PIXMA MX880
* Canon PIXMA MX882
* Canon PIXMA MX890
* Canon PIXMA MX892
* Canon PIXMA MX922
* Canon PIXMA MX924
* Canon PIXMA E480
* Canon PIXMA E500
* Canon PIXMA E600
* Canon PIXMA Pro9000
* Canon PIXMA Pro9000 Mark II
* Canon PIXMA Pro9500
* Canon PIXMA Pro9500 Mark II
* Canon PIXMA PRO-1
* Canon PIXMA PRO-10
* Canon PIXMA PRO-100

### سلسلة SELPHY
* Canon SELPHY DS700
* Canon SELPHY DS810
* Canon SELPHY ES1
* Canon SELPHY ES2
* Canon SELPHY ES3
* Canon SELPHY ES20
* Canon SELPHY Gery vmg
* Canon SELPHY ES40
* Canon SELPHY CP-10
* Canon SELPHY CP-100
* Canon SELPHY CP-200
* Canon SELPHY CP-220
* Canon SELPHY CP-300
* Canon SELPHY CP-330
* Canon SELPHY CP400
* Canon SELPHY CP500
* Canon SELPHY CP510
* Canon SELPHY CP520
* Canon SELPHY CP530
* Canon SELPHY CP600
* Canon SELPHY CP710
* Canon SELPHY CP720
* Canon SELPHY CP730
* Canon SELPHY CP740
* Canon SELPHY CP750
* Canon SELPHY CP760
* Canon SELPHY CP770
* Canon SELPHY CP780
* Canon SELPHY CP790
* Canon SELPHY CP800
* Canon SELPHY CP810
* Canon SELPHY CP820
* Canon SELPHY CP900
* Canon SELPHY CP910
* Canon SELPHY CP1000
* Canon SELPHY CP1200
* Canon SELPHY CP1300
### سلسلة S
* Canon S100
* Canon S200
* Canon S300
* Canon S330
* Canon S400
* Canon S450
* Canon S4500
* Canon S500
* Canon S520
* Canon S530D
* Canon S600
* Canon S630
* Canon S750
* Canon S800
* Canon S820
* Canon S820D
* Canon S830D
* Canon S900
* Canon S9000

## روابط خارجية
* Canon Inc.

*
تصنيف:قوائم متعلقة بالتقنية
تصنيف:قوائم منتجات
تصنيف:قوائم موضوعات التصوير الفوتوغرافي
تصنيف:كانون
تصنيف:منتجات شركة واحدة