ISO 9001 - AS 9100 - ITAR Standard & Custom Optical Filters and Coatings

 

Sloan Digital Sky Filters (SDSS)

Like the KRON and JOHN filters, Sloan filters are used to filter out and measure specific bands of light that are emitted by astronomical objects. The difference between SDSS filters and the KRON and JOHN filters is that they are non-overlapping and have steeper transitions between bands. 

The Sloan bands are U, G, R, I, and Z. Refocusing is always a problem when changing filters. Andover can minimize this problem by grinding and polishing all filters to a very precisely controlled specified thickness.  These filters are also AR coated to provide optimal performance and better imaging. Sloan Digital Sky Survey has created a detailed three-dimensional map of the universe using these filters. (www.SDSS.org)

The Sloan (SDSS) filters are available in a range of standard and custom sizes. Each band can be customized to fit your project. Contact Andover Technical Sales if you have any questions or require a quotation for a custom size or mounting. 

PART NO.
DESCRIPTION
1 - 5 pcs.
6 - 10 pcs.
> 10 pcs.
Stock Status
Buy
Available Items
SLOAN-G-SDSS-25
SLOAN G Filter 25mm dia.
$242.00
$208.00
$184.00
In Stock
Qty To Buy:
Filter TypeSloan G Filter
Bandwidth150.0nm nom
Minimum Transmission80%
Size25.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)SLOAN-G-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$242.00
6 - 10 pcs.$208.00
> 10 pcs.$184.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-G-SDSS-50
SLOAN G Filter 50mm dia.
$623.00
$536.00
$473.00
In Stock
Qty To Buy:
Filter TypeSloan G Filter
Bandwidth150.0nm nom
Minimum Transmission80%
Size50.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)SLOAN-G-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$623.00
6 - 10 pcs.$536.00
> 10 pcs.$473.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-I-SDSS-25
SLOAN I Filter 25mm dia.
$242.00
$208.00
$184.00
In Stock
Qty To Buy:
Filter TypeSLOAN I Filter
Bandwidth130.0nm nom
Minimum Transmission80%
Size25.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)Sloan-I-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$242.00
6 - 10 pcs.$208.00
> 10 pcs.$184.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-I-SDSS-50
SLOAN I Filter 50mm dia.
$623.00
$536.00
$473.00
In Stock
Qty To Buy:
Filter TypeSLOAN I Filter
Bandwidth130.0nm nom
Minimum Transmission80%
Size50.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)Sloan-I-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$623.00
6 - 10 pcs.$536.00
> 10 pcs.$473.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-R-SDSS-25
SLOAN R Filter 25mm dia.
$242.00
$208.00
$184.00
In Stock
Qty To Buy:
Filter TypeSLOAN R Filter
Bandwidth139.0nm nom
Minimum Transmission80%
Size25.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)Sloan-R-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$242.00
6 - 10 pcs.$208.00
> 10 pcs.$184.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-R-SDSS-50
SLOAN R Filter 50mm dia.
$623.00
$536.00
$473.00
In Stock
Qty To Buy:
Filter TypeSLOAN R Filter
Bandwidth139.0nm nom
Minimum Transmission80%
Size50.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)Sloan-R-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$623.00
6 - 10 pcs.$536.00
> 10 pcs.$473.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-U-SDSS-25
SLOAN U Filter 25mm dia.
$242.00
$208.00
$184.00
In Stock
Qty To Buy:
Filter TypeSLOAN U Filter
Bandwidth60.0nm nom
Minimum Transmission55%
Size25.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)Sloan-U-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$242.00
6 - 10 pcs.$208.00
> 10 pcs.$184.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-U-SDSS-50
SLOAN U Filter 50mm dia.
$623.00
$536.00
$473.00
In Stock
Qty To Buy:
Filter TypeSLOAN U Filter
Bandwidth60.0nm nom
Minimum Transmission55%
Size50.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)Sloan-U-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$623.00
6 - 10 pcs.$536.00
> 10 pcs.$473.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-Z-SDSS-25
SLOAN Z Filter 25mm dia.
$242.00
$208.00
$184.00
In Stock
Qty To Buy:
Filter TypeSLOAN Z Filter
Bandwidth104.0nm nom
Minimum Transmission80%
Size25.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)Sloan-Z-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$242.00
6 - 10 pcs.$208.00
> 10 pcs.$184.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
SLOAN-Z-SDSS-50
SLOAN Z Filter 50mm dia.
$623.00
$536.00
$473.00
In Stock
Qty To Buy:
Filter TypeSLOAN Z Filter
Bandwidth104.0nm nom
Minimum Transmission80%
Size50.0 +0.0/-0.25mm
Thickness5.0 +0.1/-0.1 mm
Transmitted wavefront1/4 wave per 25mm
A/R coatingsBoth exterior surfaces
CSV File (typical)Sloan-Z-SDSS.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$623.00
6 - 10 pcs.$536.00
> 10 pcs.$473.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days