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Apertures

High load capacity up to 100 Kg
4 mm pitch lead screw drive

Pinholes - Mounted

Holmarc manufactures precision pinholes for spatial filtering and other similar applications. Standard pinholes are available in either copper or stainless steel substrates.


* Custom hole size can be provided.



HPRA - Series

    Material    :    Copper

    25 mm outer diameter

    20 Micron thickness

    Compatible with PHC - 3 pinhole cells


Model No. Size Price $
HPRA-3-5 5.0 μm +/- 1.0 μm 80.00
HPRA-3-10 10.0 μm +/- 1 μm 80.00
HPRA-3-15 15.0 μm +/- 1.5 μm 80.00
HPRA-3-25 20 μm +/- 2 μm 80.00
HPRA-3-50 25 μm +/- 2 μm 80.00
HPRA-3-100 30 μm +/- 2 μm 80.00
HPRA-3-200 35 μm +/- 2 μm 80.00

PINH - Series

    Material    :    Stainless Steel

    25 mm outer diameter

    20 Micron thickness

    Compatible with PHC - 3 pinhole cells


Model No. Size Price $
PINH-5.0 5.0 μm +/- 1.0 μm 39.00
PINH-10 10.0 μm +/- 1 μm 39.00
PINH-15 15.0 μm +/- 1.5 μm 39.00
PINH-20 20 μm +/- 2 μm 39.00
PINH-25 25 μm +/- 2 μm 39.00
PINH-30 30 μm +/- 2 μm 39.00
PINH-35 35 μm +/- 2 μm 39.00

PIN - H - Series


    Material    :    Stainless Steel

    9.35 mm outer diameter

    20 Micron thickness

    Compatible mounts available


Model No. Siz e Price $
PIN-H-025 0.25 mm 17.25
PIN-H-050 0.50 mm 17.25
PIN-H-075 0.75 mm 12.00
PIN-H-100 1.00 mm 12.00
PIN-H-200 2.00 mm 12.00
PIN-H-300 3.00 mm 10.00
Pinhole Cells

Model No : PHC - 3

These pinhole cells are suitable for 25 mm dia. mounted pinholes. It can be used with rigid, kinematic, XY, XYZ and 5axis stages. The cell comes with standard RMS thread for fixing to various mounts.


    RMS external thread

    Material    :    Aluminium

    Finish    :    Black anodized




Round Apertures - AS Series



These apertures are made in aluminium substrate and finished by black anodizing. The aperture can be mounted to our standard RLM-25 lens mount.



    Material    :    aluminium

    Finish    :    black anodized

    25 mm outer diameter
    0.5 mm thickness

    Compatible with RLM - 25 mount



Model No. Diameter D Price $
AS - 0.5 0.5 mm 8.75
AS - 1 1 mm 8.75
AS - 2 2 mm 8.75
AS - 3 3 mm 8.75
AS - 4 4 mm 8.75
AS - 5 5 mm 8.75
AS - 6 6 mm 8.75
AS - 7 7 mm 8.75
AS - 8 8 mm 8.75
AS - 9 9 mm 8.75
AS - 10 10 mm 8.75

Compatible mounts are available for other standard / custom pinholes


Variable Aperture
Std Variable Round Aperture - SSID Series

Holmarc manufactures variable aperture in four different sizes. These are precision devices which offer near perfect circular apertures.




    Made of brass and aluminium

    Leaves made of spring steel

    Compatible with MSSID Series mounts

    Black anodized finish


Model No. Max Apreture Min Apreture D ( mm ) Thickness ( mm ) Price $
SSID-12 12 mm 0.8 mm 19.8 5.0 36.65
SSID-25 25 mm 0.8 mm 37 5.5 43.50
SSID-37 37 mm 1.2 mm 53 6.0 56.75
SSID-50 50 mm 2 mm 70 7.5 91.75

Std Variable Round Aperture Mount - MSSID Series

These mounts are specially suited for Holmarc’s variable apertures. There is M6 tapped hole at the bottom for post mounting.






    Aluminium alloy construction

    M6 mounting hole

    Black anodized finish

    Compatible with SSID series apertures


Model No. D ( mm ) t ( mm ) d ( mm ) Suitable Aperture Model Price $
MSSID-12 19.8 8.0 35.8 SSID-12 13.50
MSSID-25 37 8.5 53.0 SSID-25 16.50
MSSID-37 53 9.0 69.0 SSID-37 19.50
MSSID-50 70 10.5 86.0 SSID-50 23.00

Stainless steel variable apertures and compatible mounts are available


Std Variable Slit - SVRA Series

Variable slits manufactured by Holmarc has micrometer drive which shows slit opening directly on the graduations.








Model No. Price $
SVRA 140.00


    Slit has 15mm length

    0-2 mm opening

    Opens equally from center

    Polished steel blades

    M6 mounting hole

    Post mountable

    Aluminum alloy construction

    Black anodized finish
Spatial Filter Mount - Laser Fiber Coupler SFAS Series

Fine XY adjustment facility is provided for both objective and pinhole. Pinhole assembly is detachable and can be inserted after aligning objective with other optics for spatial filtering. The distance between objective mount and pinhole mount can be varied from 30 mm to 50 mm. This helps to accommodate objectives of varying sizes.





Model No. Price $
SFAS 168.00

Note: Pinholes and microscope objectives are sold separately


Laser Fiber Coupler

Laser fiber coupler consists of microscope objective and XYZ fiber mount to achieve maximum coupling of laser beam to fiber tip. The device can be either post mounted or base mounted.







Model No Connector Type Price $
LFC - 1 Fiber Chuck (FC1) 172.00
LFC - 1 FC FC, Connector 176.00


    3 mm XY adjustment

    10 mm linear movement

    Fiber Chuck / FC Connector Compatible

    Compatible with std microscope objective

    M6 mounting hole

    Post / base mountable

    Black anodized finish




Pinholes PINH-Series 10

Model No. PINH - 10
$ 38.00
Pinholes PINH-Series 15

Model No. PINH - 15
$ 36.00
Pinholes PINH-Series 20

Model No. PINH - 20
$ 35.00
Pinholes PINH-Series 25

Model No. PINH - 25
$ 34.44
Pinholes PINH-Series 30

Model No. PINH - 30
$ 34.88
Pinholes PINH-Series 40

Model No. PINH - 40
$ 34.00
Pinholes PINH-Series 50

Model No. PINH - 50
$ 34.00
Pinholes PIN-H-Series 025

Model No. PIN-H-025
$ 31.00
Pinholes PIN-H-Series 050

Model No. PIN-H-050
$ 31.00
Pinholes PIN-H-Series 075

Model No. PIN-H-075
$ 31.00
Variable Round Aperture With Mount 25

Model No. SSID-25 MSSID-25
$ 49.00
Standard Variable slit

Model No. SVRA
$ 128.55

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