Andover Filters Sloan G 50mm mounted (79148)
1252.95 $
Tax included
Like the KRON and JOHN filters, Sloan filters are designed to isolate and measure specific bands of light emitted by astronomical objects. The key difference between SDSS filters and the KRON and JOHN filters is that Sloan filters are non-overlapping and feature steeper transitions between bands.
Andover Filters Sloan I 50mm mounted (79150)
1252.95 $
Tax included
Sloan filters, like the KRON and JOHN filters, are designed to isolate and measure specific bands of light emitted by astronomical objects. The key difference between Sloan Digital Sky Survey (SDSS) filters and KRON or JOHN filters is that Sloan filters are non-overlapping and feature steeper transitions between bands.
Andover Filters Sloan R 50mm mounted (79149)
1252.95 $
Tax included
Sloan filters, similar to KRON and JOHN filters, are designed to isolate and measure specific bands of light emitted by astronomical objects. The main distinction between SDSS filters and KRON or JOHN filters is that Sloan filters are non-overlapping and have steeper transitions between bands.
Andover Filters Sloan U 50mm mounted (79152)
1252.95 $
Tax included
Sloan filters, like KRON and JOHN filters, are designed to isolate and measure specific bands of light emitted by astronomical objects. The key difference between SDSS filters and KRON or JOHN filters is that Sloan filters are non-overlapping and feature steeper transitions between bands.
Andover Filters Sloan Z 50mm mounted (79151)
1252.95 $
Tax included
Sloan filters, similar to KRON and JOHN filters, are designed to isolate and measure specific bands of light emitted by astronomical objects. The key difference between SDSS filters and KRON or JOHN filters is that Sloan filters are non-overlapping and feature steeper transitions between bands.
APM Herschelwedge 2" FastLock (75312)
487.19 $
Tax included
Now available from Lunt Solar Systems, the 1.25'' Herschel wedge is equipped with a built-in ND3.0 (1000x) neutral density filter, making it ideal for safe solar observations. Its design mirrors that of the larger 2'' version but is tailored for use with refracting telescopes up to 150mm (6'') in aperture. A matching 1.25'' polarizing filter is also offered, allowing observers to adjust the brightness of sunlight to a comfortable level. This smaller Herschel wedge is compatible exclusively with 1.25'' eyepieces.
APM Riccardi APO-Reducer 0.75x M82 (61019)
785.57 $
Tax included
This high-performance reducer is designed to enhance the imaging capabilities of telescopes by providing a 0.75x focal length reduction. Its fully multi-coated optical system, featuring three precision lenses, ensures excellent light transmission and a fully corrected field of 52mm. Built with durable aluminum, it is both robust and reliable, making it ideal for astrophotographers seeking wide-field views with minimal distortion.
APM Riccardi Flattener Model 1 (66841)
653.54 $
Tax included
This flattener is designed to optimize the performance of telescopes by providing a fully corrected field of 60mm, ensuring sharp and distortion-free images across the entire view. Its high-quality optical system, featuring three fully multi-coated lenses, guarantees excellent light transmission and clarity. With a robust aluminum build and precise connections, it is a reliable tool for astrophotographers seeking superior image quality.
APM Riccardi M63 0.75X reducer (55552)
653.54 $
Tax included
This flattener with a 0.75x focal length reduction is designed to enhance the imaging performance of telescopes, offering a wider field of view with minimal distortion. Its three-element optical system, featuring multiple coatings, ensures excellent light transmission and image clarity. Compact and robust, it is an ideal accessory for astrophotographers seeking high-quality results.
APM Teleconverter Coma-correcting telecentric Barlow 1.5x 2" (59296)
653.54 $
Tax included
This tele-extender is a versatile accessory designed to enhance the focal length of telescopes by 1.5x, making it ideal for detailed astrophotography and observation. Its four-lens optical system ensures excellent image quality, while the inclusion of filter threads adds flexibility for various setups. With robust construction and precise connections, it is a reliable tool for achieving high-magnification views.
APM Finder 50mm (53024)
170.31 $
Tax included
This 50mm optical finder is a reliable and versatile tool for locating celestial objects with precision. Its two-lens system with multiple coatings ensures clear and bright images, while the option to change eyepieces adds flexibility for various observational needs. Built with durable aluminum, it offers a lightweight yet robust design ideal for any telescope setup.