a.u

Apr 30, 2026

SVBONY SV221 1.25" 90° Brass Diagonal for Refractor Telescope

Svbony 221 diagonal This is of solid quality. Under cloudy skies at the moment but the mirror is clean and its doesnt feel like cheap plastic. I will get another.

Steven

Mar 15, 2026

SVBONY SV221 1.25" 90° Brass Diagonal for Refractor Telescope

SVBONY SV221 90 Degree Diagonal Mirror works great

Lara E. Bee

Jan 21, 2025

SVBONY SV221 1.25" 90° Brass Diagonal for Refractor Telescope

Great eye piece I love the 90 degree angle! Since I have neck problems, this makes it much easier to use the telescope than a 45 degree piece. I would strongly recommend this one. It has a great image quality, better than expected and awesome for the price.

Book Gnome

Dec 27, 2023

SVBONY SV221 1.25" 90° Brass Diagonal for Refractor Telescope

As Good Or Better Than Any Other Entry Level Brand Tip: Note that this is a 90-degree diagonal, and although it’s a great product I’ve found a 45-degree diagonal to provide a much more comfortable angle for astronomical viewing. While routinely using your telescope try “mock holding” an eyepiece at 45 degrees and 90 degrees to your eyepiece to see which position you think will be most comfortable for you the way you normally use your telescope. I’ve recently had the opportunity to test a range of entry-level astronomical eyepieces and accessories including diagonals. This one looked just as good to me as the Neewer diagonals that I tested, providing a crisp clear view that was a small upgrade from the factor-included telescope diagonal. One nice feature is that the diagonal is threaded for filters, so if you normally use a “Moon & Skyglow” filter all the time you can put this right on your diagonal and not have to move it from eyepiece to eyepiece. Also, several different thumbscrew sockets are available so you can position a thumbscrew in the most comfortable position for you (though all the positions are a little off center). This is an excellent product and a good performer at this low, low price point.

manuel

Feb 09, 2026

Svbony SV220 2" H-Alpha OIII 7nm Telescope Filter for Nebula Photo

Envio directo desde Svbony. Precio muy bueno. Envio un poco lento. Pero merece la espera porcel precio. Directo de Svbony.

Steven

Mar 26, 2026

Svbony SV220 2" H-Alpha OIII 7nm Telescope Filter for Nebula Photo

Svbony casi nunca defrauda Buena relación calidad-precio

EbFi

Dec 03, 2025

Svbony SV220 2" H-Alpha OIII 7nm Telescope Filter for Nebula Photo

Sehr gute Qualität Macht, was er soll. Minimale Halos.

Carlo Muccini

Jun 27, 2026

Svbony SV220 2" H-Alpha OIII 7nm Telescope Filter for Nebula Photo

bande passanti 3nm effettivibande passanti 3nm effettivi eccellente filtro dual band

Augusto

May 19, 2026

Svbony SV220 2" H-Alpha OIII 7nm Telescope Filter for Nebula Photo

Buon prodotto Un buon prodotto con un rapporto qualità prezzo ottimo

Martin

Nov 07, 2023

Svbony SV220 1.25" H-Alpha OIII 7nm Dual-Band Nebula Filter Deep Sky

Light pollution filter 100% happy. Thanks

Graham

Jan 31, 2024

Svbony SV220 1.25" H-Alpha OIII 7nm Dual-Band Nebula Filter Deep Sky

Looks professionally made Fits 2 inch eyepieces. Made to reduce light pollution. Cannot comment on efficiency as have not used it yet due to weather conditions, sorry.

Pierre B.

Sep 18, 2025

Svbony SV220 1.25" H-Alpha OIII 7nm Dual-Band Nebula Filter Deep Sky

Télescope - Caméra - Filtre SV220Télescope - Caméra - Filtre SV220 Excellent filtre pour photographier et mettre en évidence les gaz ionisés, même en ville

Dave

Jul 23, 2026

Svbony SV220 1.25" H-Alpha OIII 7nm Dual-Band Nebula Filter Deep Sky

Great nebula filterGreat nebula filter Great filter at a good price! Good results with my stock/unmodified canon DSLR. Still able to focus on bright stars using a bahtinov mask. Suppresses over exposed and bloated stars, minimizing the need for star reduction. Blocks almost all moon-glow, allowing more emission nebulae to be imaged during the full moon. Of course it's not suitable for reflection nebula and galaxies, since it only passes Ha and OIII.

Peter

Apr 05, 2026

Narrowband Filter 3nm H-Alpha & OIII SV220 2inch | Svbony

Erstaunlich gutes Preis Leistungsverhälznis Ich benutzte bisher einen optolonh Lextrem....der produzierte je nach Belichtungszeit Halos..... Der SVBony tut dies nicht und filtert genauso deutlich Ja und OIII. Sehr empfehlenswert, wenn man gute Bilder mit weniger Nachbearbeitung Zeit und kostengünstiger als mit dem Lextrem haben möchte....

pazizipa

Mar 27, 2026

Narrowband Filter 3nm H-Alpha & OIII SV220 2inch | Svbony

Superb 3nm narrowband filter for the money! I'm very pleasantly surprised by the images I'm getting with this filter. In terms of contrast. 3nm really makes a big difference versus 6nm that I used before. Yes, there is a bit of halo around the brightest stars but it doesn't bother me. Overall, this is a superb filter for the money!

Murmel

Feb 25, 2026

Narrowband Filter 3nm H-Alpha & OIII SV220 2inch | Svbony

Flternutzung Filter ist ok, so wie erwartet, etwas mehr Halbwertsbreite als die extrem schmalbandigen Filter und dafür etwas mehr Licht.

ROSKRH

May 22, 2026

Narrowband Filter 3nm H-Alpha & OIII SV220 2inch | Svbony

Guter DNB Filter Bis jetzt sehr zufrieden. Auch Sternhal9s sind eher gering.

Angelica

Dec 12, 2025

Narrowband Filter 3nm H-Alpha & OIII SV220 2inch | Svbony

Sv220 3nm Ottimo rapporto qualità prezzo

Z³

Nov 10, 2025

Narrowband Filter 7nm SII & OIII SV220 2inch | Svbony

Great product at an affordable price Had a short 3 hour session. Worked very well for Oiii and Sii. No halos on stars

AstroAz

Jun 03, 2026

Narrowband Filter 7nm SII & OIII SV220 2inch | Svbony

Far exceeded my expectations.Far exceeded my expectations. Very much taken back by the performance of this filler and the competitiveness and innovation SVBONY is showing while remaining cheap and reliable. Compared to other Sii/Oiii filters which have a much wider band pass but are relatively the same in pricing. Attached is the 2.9 hours of 300 second exposures from my very light polluted Bortle 8 backyard. This was shot with the moon at 96% illumination.