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TECHSPEC® Circular Variable Filters

Circular Variable Filters
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These neutral density filters are continuously variable over 270° of the filter. Circular variable filters provide linear attenuation of incident light by rotating the filter. Designed to be spectrally flat from 400 to 700nm, they provide excellent attenuation for spectrometers and other optical instruments. The 50mm OD filters are available mounted or unmounted. The durable anodized aluminum mount has an indicator arrow that accurately identifies the angular position of the filter for increased repeatability. The 360° rotating mount comes complete with 4" L, 0.5" Dia. stainless steel post.



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Description Stock No. Price In Stock Qty
Showing 1-16 of 16 Items |  Sort by Spec
Circular Variable Filter 25.4mm Diameter 0.04-1.0 OD
#43-759
$299.00
In Stock and Ready to Ship.
Circular Variable Filter 25.4mm Diameter 0.04-2.0 OD
#43-760
$299.00
In Stock and Ready to Ship.
Circular Variable Filter 25.4mm Diameter 0.04-3.0 OD
#43-761
$299.00
In Stock and Ready to Ship.
Circular Variable Filter 25.4mm Diameter 0.04-4.0 OD
#43-762
$299.00
In Stock and Ready to Ship.
Circular Variable Filter 100mm Diameter 0.04-1.0 OD
#43-767
$379.00
In Stock and Ready to Ship.
Circular Variable Filter 100mm Diameter 0.04-2.0 OD
#43-768
$379.00
In Stock and Ready to Ship.
Circular Variable Filter 100mm Diameter 0.04-3.0 OD
#43-769
$379.00
In Stock and Ready to Ship.
Circular Variable Filter 100mm Diameter 0.04-4.0 OD
#43-770
$379.00
In Stock and Ready to Ship.
Circular Variable Filter 50mm Diameter 0.04-1.0 OD
#43-763
$329.00
In Stock and Ready to Ship.
Circular Variable Filter 50mm Diameter 0.04-2.0 OD
#43-764
$329.00
In Stock and Ready to Ship.
Circular Variable Filter 50mm Diameter 0.04-3.0 OD
#43-765
$329.00
In Stock and Ready to Ship.
Circular Variable Filter 50mm Diameter 0.04-4.0 OD
#43-766
$329.00
In Stock and Ready to Ship.
Circular Variable Filter 50mm Diameter Mounted 0.04-1.0 OD
#54-534
$485.00
Out of Stock. Click to Receive an Email with Delivery Details.
Circular Variable Filter 50mm Diameter Mounted 0.04-2.0 OD
#54-535
$485.00
Out of Stock. Click to Receive an Email with Delivery Details.
Circular Variable Filter 50mm Diameter Mounted 0.04-3.0 OD
#54-536
$485.00
Out of Stock. Click to Receive an Email with Delivery Details.
Circular Variable Filter 50mm Diameter Mounted 0.04-4.0 OD
#54-537
$485.00
Out of Stock. Click to Receive an Email with Delivery Details.
 View Legend
Description Stock No. Price In Stock Qty
Showing 1-1 of 1 Items
Circular Variable Filter Mount Only, 50mm Diameter
#54-570
$175.00
Out of Stock. Click to Receive an Email with Delivery Details.
 
Optical Density
Unmounted
 Mounted
  25.4mm Outer Diameter (OD)
7.5mm Inner Diameter (ID)		 50.0mm Outer Diameter (OD)
7.5mm Inner Diameter (ID)		 100.0mm Outer Diameter (OD)
25.4mm Inner Diameter (ID)		 50.0mm Outer Diameter (OD)
7.5mm Inner Diameter (ID)
0.04-1.0 #43-759 #43-763 #43-767 #54-534
0.04-2.0 #43-760 #43-764 #43-768 #54-535
0.04-3.0 #43-761 #43-765 #43-769 #54-536
0.04-4.0 #43-762 #43-766 #43-770 #54-537
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