5 Alternatives to the Svbony 2" CLS Filter — Including Options for Budget, Imaging and Smarter Skies

If you were looking at the Svbony 2-inch CLS filter, the closest alternative in this list is the Svbony UHC Filter 1.25". It’s much cheaper at £29.99 and has a stronger reputation for boosting contrast on emission nebulae, especially under suburban and urban skies. What’s better: it can make objects like the Orion Nebula or the Veil Nebula stand out more clearly, and the lower price makes it easier to justify as a first light-pollution filter. What’s worse: it’s 1.25-inch rather than 2-inch, so it may not suit every imaging train or wide-field setup. Choose this instead if you mainly observe nebulae visually and want the biggest improvement per pound.

The Svbony SV205 Telescope Electronic Camera is a different kind of upgrade. At £79.99, it’s not a filter at all, but a USB3.0 astronomy camera for beginners who want to try lunar, planetary and simple imaging. Compared with the CLS filter, it gives you a completely new way to use your telescope: capture and stack images rather than just filter the view. What’s better: it opens the door to astrophotography, and it can be very rewarding on nights when UK seeing is steady for the Moon or planets. What’s worse: it won’t help reduce light pollution in the eyepiece, and it’s less useful for deep-sky imaging without experience. Choose this if you’re more excited by recording the sky than simply improving visual observing.

The Svbony SV105 is the cheaper camera option at £57.99. It’s simpler and more affordable than the SV205, so it suits someone who wants to dip a toe into planetary imaging without spending much. What’s better: lower cost and beginner-friendly use. What’s worse: the 2MP sensor and USB2.0 connection are more limited, so you’ll outgrow it faster if you get serious about imaging. If your budget is tight and you mainly want to experiment, this is the more cautious buy.

The Celestron Skyportal WiFi Module is the odd one out at £168.45, but it’s worth mentioning for telescope owners who want convenience rather than optical filtering. It connects compatible mounts to your phone or tablet, making alignment and control easier. What’s better: it can transform the observing experience, especially from a backyard setup in the UK where quick sessions matter between clouds. What’s worse: it doesn’t improve contrast on the sky itself, and it’s expensive compared with filters. Pick this only if you want smarter mount control and already have the optical gear you need.

Finally, The 100 Best Astrophotography Targets is a practical book rather than equipment, but it may be the best-value alternative for some buyers at £26.90. If you’re unsure whether a CLS filter is right for your telescope, this guide helps you choose targets by month and season, which is especially useful under Britain’s changeable skies. What’s better: it helps you plan successful sessions and avoid wasting clear nights. What’s worse: it won’t physically improve your view. Choose it if you want to make better use of the kit you already own, especially before spending more on accessories.