UNMOUNTED IRISES
C D
For adjusting system f/#, field stop diameter,
and overall light throughput
Standard Series
Zero Aperture Series
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testing & detection targets illumination cameras imaging lenses microscopy lasers optomechanics optics
90o
A
B
Lever
Actuator
• Zero Aperture Series Provides Total
Light Extinction
• Mounted Version Features a Tapped Hole for
Easy Post Mounting
Our iris diaphragms have been specifically designed
for OEM integration and general laboratory use. All
offer exceptionally smooth operation over the lever
travel, from maximum to minimum aperture (approximately
90°). Lever actuators are available in
two styles: stainless steel “pin” or plastic “tab.” All
standard series diaphragms have blued spring steel
leave construction and black housing finish.
The Zero Aperture series provides total light extinction.
This type of control is often used in systems
where the dark signal (background noise) must be
measured for calibration. Two sets of leaves are used
which are mounted on different tiers and are moved
by one lever. For each iris, there are two additional
relief leaves (not listed in table) that are not visible.
Iris Diaphragms
Standard Series *With filter holder and rear mounting thread. See website for details. Units: mm
Outside
Maximum
Minimum
Thickness
Number
Lever
Max. Pin Dia. (or Tab
Diameter A
Aperture B
Aperture C
D
of Leaves
Type
width) x Length
Housing
Material Unmounted
Price
Mounted
Price
1-4 5-9 10+ 1-4 5-9 10+
10,0 5,0 0,6 4,5 6 Pin 1,5 x 7,5 Brass #54-352 €57,75 €52,00
Call For OEM Quantity Pricing
N/A – –
Call For OEM Quantity Pricing
14,8 8,0 0,8 4,5 8 Pin 1,5 x 7,0 Brass #32-623 €43,50 €39,25 N/A – –
15,5 8,5 1,0 5,3 9 Tab 3 x 8 Aluminum #42-124 €55,00 €49,50 N/A – –
19,8 12,0 0,8 5,0 10 Pin 3 x 11,5 Brass #30-263 €41,25 €37,25 #53-914 €50,00 €45,00
22,0 14,0 1,0 6,0 10 Tab 4 x 12 Aluminum #42-123 €55,00 €49,50 N/A – –
24,0 15,0 1,2 5,0 12 Pin 3 x 11,3 Brass #32-622 €42,75 €38,50 N/A – –
28,0 18,0 1,2 5,0 12 Pin 3 x 13,3 Brass #32-621 €55,00 €49,50 N/A – –
30,0 20,0 1,2 5,5 12 Pin 3 x 13,2 Brass #35-111 €46,75 €42,25 N/A – –
31,0 18,0 1,5 6,5 11 Tab 5 x 10 Aluminum #36-623 €46,75 €42,25 N/A – –
33,0 22,0 1,4 5,5 14 Pin 3 x 13,3 Brass #32-620 €66,00 €59,50 N/A – –
37,0 25,0 0,8 5,5 14 Pin 3 x 12,9 Brass #35-110 €50,00 €45,00 #53-915 €60,00 €54,00
40,0 28,0 1,5 5,5 16 Pin 3 x 12,6 Brass #42-122 €74,25 €67,00 N/A – –
42,0 30,0 1,5 6,0 16 Pin 3 x 12,4 Brass #64-500 €82,50 €74,25 N/A – –
42,6* 25,0 1,2 5,8 10 Tab 5 x 21 Brass #40-997 €77,00 €69,50 N/A – –
48,0* 30,0 1,2 6,8 12 Tab 5,5 x 20,5 Brass #40-998 €82,50 €74,25 #37-919 €102,00 €97,00
48,5 30,0 1,2 7,0 10 Tab 6 x 10 Aluminum #42-121 €74,25 €67,00 N/A – –
49,0 34,0 1,5 6,5 14 Pin 3 x 12,5 Brass #41-972 €82,50 €74,25 N/A – –
50,0 36,0 1,9 6,0 16 Pin 3 x 12,5 Brass #32-619 €65,75 €59,25 N/A – –
53,0 37,0 1,9 6,0 16 Pin 3 x 12,5 Brass #32-618 €68,75 €62,00
Call For OEM Quantity Pricing
#53-916 €75,00 €67,50
Call For OEM Quantity Pricing
55,0 41,0 2,0 6,5 18 Pin 3 x 12,5 Brass #41-973 €82,50 €74,25 N/A – –
58,0 42,0 2,0 6,5 18 Pin 3 x 12,5 Brass #30-118 €77,00 €69,50 N/A – –
60,0 40,0 2,5 7,8 12 Tab 7 x 13 Aluminum #36-624 €99,00 €89,25 N/A – –
70,0 50,0 2,5 7,5 16 Pin 3 x 15 Brass #32-617 €109,00 €98,25 #53-917 €128,50 €115,75
77,0 59,0 7,0 8,0 20 Pin 3 x 14,8 Brass #32-616 €159,50 €143,75 N/A – –
80,0 58,0 3,0 8,0 18 Pin 3 x 14,3 Brass #32-615 €159,50 €143,75 N/A – –
82,0 60,0 4,0 10,1 17 Tab 8 x 11 Aluminum #36-625 €165,00 €148,50 N/A – –
92,0 70,0 4,5 9,0 20 Pin 3 x 13,5 Aluminum #32-614 €219,00 €197,25 N/A – –
100,0 75,0 4,5 9,0 20 Pin 3 x 14,2 Aluminum #30-264 €247,50 €222,75 N/A – –
110,0 80,5 4,5 10,0 16 Pin 3 x 13 Aluminum #32-613 €269,50 €242,75 N/A – –
120,0 90,0 5,0 12,0 20 Pin 3 x 13,4 Aluminum #32-612 €313,50 €282,25 N/A – –
130,0 98,0 5,0 12,0 20 Pin 3 x 20 Aluminum #32-611 €335,50 €302,00 N/A – –
140,0 104,0 5,0 11,0 16 Pin 3 x 19,8 Aluminum #32-610 €360,25 €324,25 N/A – –
150,0 110,0 6,0 13,0 20 Pin 3 x 20,3 Aluminum #60-644 €390,50 €351,50 N/A – –
165,0 120,0 6,0 15,0 18 Pin 3 x 19,5 Aluminum #32-609 €407,00 €366,50 N/A – –
180,0 138,0 11,5 13,0 20 Pin 3 x 19,1 Aluminum #32-608 €525,25 €472,75 N/A – –
208,0 158,0 11,0 16,0 20 Pin 3 x 20,5 Aluminum #70-894 €632,50 €569,25 N/A – –
300,0 225,0 12,0 19,0 18 Pin 5 x 40,5 Aluminum #70-895 €654,50 €589,25 N/A – –
Zero Aperture Series Units: mm
Outside
Maximum
Minimum
Thickness
Number
Lever
Pin Max. Dia. x
Housing
Price
Price
Diameter A
Aperture B
Aperture C
D
of Leaves
Type
Length
Material Unmounted
Mounted
1-4 5-9 10+ 1-4 5-9 10+
21,0 12,0 0,0 6,2 2 x 5 Pin 3 x 11,8 Brass #53-906 €48,00 €43,25
Call
#62-653 €64,00 €57,75
Call
29,0 18,0 0,0 6,1 2 x 6 Pin 3 x 13,5 Brass #62-649 €56,00 €50,50 N/A – –
38,0 25,0 0,0 6,1 2 x 7 Pin 3 x 12,8 Brass #53-907 €56,00 €50,50 #62-654 €76,00 €68,50
54,0 37,0 0,0 7,5 2 x 8 Pin 3 x 12,6 Aluminum #53-908 €64,00 €57,75 #62-655 €92,00 €83,00
72,0 50,0 0,0 9,1 2 x 8 Pin 3 x 13,5 Brass #53-909 €108,00 €97,25 #62-656 €172,00 €155,00
102,0 75,0 0,0 9,1 2 x 10 Pin 3 x 14,5 Brass #64-506 €152,00 €137,00 N/A – –
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