Filter Slider - 2" to 36mm Unmounted Filter Adapter (SFS-236A)

Name: Filter Slider - 2" to 36mm Unmounted Filter Adapter (SFS-236A)
Brand: Starizona
SKU: SFS-236A
Price: 18 USD
Availability: InStock
Rating: 4.6 (5 reviews)

Filter Slider - 2" to 36mm Unmounted Filter Adapter (SFS-236A) - Main image

$18 ~~$25~~ In stock

Category: Astrophotography Accessories

Description

This filter step ring is made specifically with the Starizona Filter Slider system in mind. It steps the M48 threads of a standard 2" filter down to a 36mm unmounted filter holder. There are nylon retaining screws to hold the filter in place. The step ring has a 2" outside diameter, so it can also be used in many other applications in addition to the Filter Slider.

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Joseph ★★★★★ Oct 21, 2026

I was worried about fit, but this ring locks my 36mm filter into the slider perfectly with zero wiggle. The threads are clean and precise, making installation quick. Really solid build for the price.

Joshua B. ★★★★★ Oct 20, 2026

The threading on this ring is spot-on for the M48 to 36mm conversion—no wobble, no forcing it into the holder. I switched out my old adapter and the filter seats perfectly every time, which makes swapping between narrowband sets way less fiddly.

Henry ★★★★★ Oct 19, 2026

Finally a step ring that actually mates perfectly with the Starizona slider. The M48 threads are cut cleanly and spin on smooth without any binding. Just what I needed to adapt my 36mm unmounted filters.