Imaging and optical data
Field of view (FOV)	32 × 24 mm
Magnifying factor	4×
Working distance	79 mm
Depth of field	±2.0 mm
Focal length	73 mm (2.9 in.)
Spatial resolution (IFOV)	Depends on the IR resolution of the camera: 200 µm for 160 × 120 pixels 160 µm for 200 × 150 pixels 133 µm for 240 × 180 pixels 100 µm for 320 × 240 pixels
F-number	1.3
Number of lenses	2 (2 asph)
MTF @ 70% of FOV	Normal requirements (52%)
Distortion	3%

Physical data
Weight	0.11 kg (0.24 lb.)
Size (L × D)	35.2 × 55 mm

Product Name

Close-up 4x lens (T197215)

URL Key

t197215-close-up-4x-lens

What's In The Box

Lens
Lens case

Lens Comparison

Lens Options
	IR Lens , 7° FOV, 88.9mm (T198165)	IR lens, 15° FOV, 41.3mm (T197914)	IR lens, 25° FOV, 24.6mm (T197922)	IR lens, 45° FOV, 13.1mm (T197915)	IR lens, 80° FOV, 6.5mm (T198065)	Close-up IR lens, 5.8x (100 µm) (T198060)	Close-up IR lens, 1.5x (25 µm) (T198066)
Imaging and Optical Data
Field of View (FoV)	7°_(H)×5.3°_(V) _{(8.7° diagonally)}	15°_(H)×11°_(V) _{(19° diagonally)}	25°_(H)×19°_(V) _{(31° diagonally)}	45°_(H)×34°_(V) _{(55° diagonally)}	80°_(H)×64.4°_(V) _{( 92.8° diagonal)}	64°_(H)×48°_(V) _{(80 mm diagonally)}	16°_(H)×12°_(V) _{(20 mm diagonally)}
Minimum focus distance	2.0 m (6.6 ft.)	500 mm (19.69 in.)	250 mm (9.84 in.)	150 mm (5.91 in.)	65 mm (2.6 in.)
Magnifying factor						1.5x	5.8×
Working Distance						172 mm	46 mm
Depth of Field						2.8 mm	0.21 mm
Focal length	88.9mm (3.5 in.)	41.3 mm (1.63 in.)	24.6 mm (0.97 in.)	13.1 mm (0.52 in.)	6.5 mm (0.26 in.)	149 mm	62 mm
Spatial resolution (IFOV)	0.19 mrad	0.41 mrad	0.69 mrad	1.30 mrad	2.62 mrad	100 µm	25 µm
Lens identification	Automatic	Automatic	Automatic	Automatic	Automatic	Manual	Automatic
F-number	1.3	1.0	1.0	1.0	1.0	1.0	1.1
Number of lenses	3 (3 asph)	3 (3 asph)	3 (3 asph)	3 (3 asph)	5 (5 asph)	2 (2 asph)	4 (4 asph)
MTF @ 70% of FOV	Normal requirements (52%)
Distortion	3%	3%	3%	3%	5%	3%	<3%
Lens note:						The close-up lens is mounted on the 25° lens
Physical data
Weight	0.88 kg (1.94 lb.)	0.190 kg (0.419 lb.)	0.160 kg (0.353 lb.)	0.209 kg (0.461 lb.)	0.428 kg (0.944 lb.)	0.176 kg (0.39 lb.)	0.48 kg (1.1 lb.)
Size (L×D)	96×126 mm (3.78×4.96 in.), excluding support	47×67 mm (1.85×2.64 in.)	41×67 mm (1.61×2.64 in.)	50×67 mm (1.97×2.64 in.)	126×67 mm (4.96×2.64 in.)	28×67 mm	86×67 mm
Front lens diameter	96 mm (3.78 in.)	52 mm (2.05 in.)	32 mm (1.26 in.)	30 mm (1.18 in.)	25 mm 0.98 in.)	53 mm	52 mm
EAN-13	_{7332558005798}	_{7332558004449}	_{7332558004432}	_{7332558004463}	_{7332558004418}	_73325585545	_73325585552

Close-up 4x lens (T197215)

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