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Accessories
M25.5 and M30.5 Filter Mounts
• Mounts Available Separately to Hold any 25mm Diameter Filter
• Mounted ND, Shortpass, and Longpass Filters Available
We’ve specially designed our M25.5 x 0.5 and M30.5 x 0.5 diameter mounts to hold any of our 25 or 25.4mm
diameter filters. Mounts allow for up to 6.5mm filter thickness, making them ideal for stacking multiple ND
filters, or for creating custom bandpass filters from longpass and shortpass filter combinations. M25.5 x 0.5
Mounted Filters are ideal for use with our TECHSPEC® C Series Fixed Focal Length Lenses; the M30.5 x 0.5
Mounted Filters are well-suited to our TECHSPEC® HP Series Fixed Focal Length Lenses.
Empty Mounts for 25mm Filters
www.edmundoptics.co.uk/imaging 129
M25.5 M30.5
Price
1-5 6-25 26+
#65-800 #65-801 £36.13 £32.51 Call
Visit our website for mounted neutral density,
shortpass, and longpass filters
Filter Holders for Imaging Lenses
• Holds 2" Diameter or Square Filters
• Provides Male M52 x 0.75 Filter Thread Interface
• Step Down Adapter Options for Other Common Filter Thread
These innovative
filter holders enable easy integration
of
2" and 50mm filters into imaging applications. Swivel
feature on the back end of the holder allows for rotation of the optic while mounted. The holder's male M52
x 0.75 thread can be adapted to other standard mounting threads by using the optional filter thread adapters.
Filter Holders for Imaging Lenses
Description Stock No. Price
2" Square Threaded Filter Holder #59-445 £46.75
2" Diameter Threaded Filter Holder #83-340 £46.75
Filter Thread Adapters
Filter Threading Stock No. Price
M58 x 0.75 #59-447 £22.53
M55 x 0.75 #59-446 £22.53
M49 x 0.75 #59-448 £22.53
M46 x 0.75 #59-450 £22.53
Filter Thread Adapters
Filter Threading Stock No. Price
M40.5 x 0.5 #59-453 £34.00
M39 x 0.5 #59-454 £43.78
M37 x 0.75 #59-455 £43.78
Fixed Focal Length Lens C-Mount Spacers
At long working distances, most lenses are difficult
to fix in bench top applications, and provide fields
of view larger than required. Spacers address these
issues by reducing minimum working distance and
by increasing magnification, which decreases field
of view. The C-Mount Extender Kit includes 0.5mm,
1mm, two 5mm, 10mm, 15mm and 40mm spacers.
Sensor
Camera Sensor
Spacer
Object
I
O
I
O
C-Mount Extender Kit:
Includes 0.5mm, 1mm, two 5mm,
10mm, 15mm, and 40mm spacers
#54-261 £80.75
5mm Spacer:
Converts CS-Mount camera to C-Mount #03-618 £17.00
M25.5 x 0.5 to C-Mount Adapter:
Double Male, Rotating #66-381 £38.25
Fixed Focal Length Lens Extenders
As an alternative to spacers, adding a negative focal length lens to the camera end of an optical system can
decrease the field of view while maintaining the original working distance specifications. For instance, increasing
the focal length by 2 decreases the field of view by the same factor. Therefore, the 2X extender converts a
25mm FL lens to a 50mm FL lens. Designed for CS- or C-Mount video lenses.
Fixed Focal Length Lens Extenders
Description
CS-Mount C-Mount
Stock No. Price Stock No. Price
2X Focal Length Extender #56-822 £84.15 #54-356 £84.15
1.5X Focal Length Extender #56-823 £84.15 #54-357 £84.15
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