1.25/2inch Variable Polarizing Filters for Telescope

Universal and practical. Good visibility.

I'm very impressed with this SVBONY variable polarizing filter. When I got into astronomy decades ago, I needed an entire set of fixed polarizing filters for different uses and conditions. This filter has become my "one size fits all" polarizing filter solution! It's not only great for 'dimming down' the very bright moon (of course) but works great for bright planets like Jupiter and for solar astronomy -- when using an over the aperture optical grade solar filter. I particularly enjoy solar astronomy and this variable filter not only helps bring out planetary features like the bands of Jupiter but features of the sun like sunspots and faculae. It also works very well when using an eyepiece projection into a camera (or even a smartphone, like I use). Important: NEVER use a camera or look at the sun through a telescope without using an optically rated, over-the-aperture solar filter (as shown in my photos). Yes, it' is somewhat inconvenient to remove the eyepiece in order to make adjustments, but it's not nearly as inconvenient as removing the eyepiece, unscrewing a filter of a specific percentage, screwing in a different fixed percentage filter, then putting the eyepiece back in … only to do it all again if the fixed percentage filter you choose was still not right for the application. The range of percentages on this SVBONY variable polarizing filter is great, the filter's optical quality seems excellent and it's adjustment is very smooth. This is my first SVBONY product

This is a super product at a great bargain price! Full of high quality and precision through and through. For the past year, I have been getting back into astronomy and astrophotography as a retirement hobby. SvBony is a brand that I have come to appreciate through their great reputation via YouTube reviews and personal experience with a growing number of purchases of various peripheral products and accessories. If a company is truly committed to offering top-notch products, that is reflected in the quality and value of their entire product line. SvBony is proving that to me with every SvBony product I purchase and hear about from reliable reviewers like Nicco Carver and many, many others. Although inflation presents a challenge, due to my spartan retirement income, I definitely plan to confidently keep SvBony first in line when purchasing any telescope and accessories for my growing hobby. Thank you, SvBony!

Hello. I want to buy a Variable Polarizing Filters for eyepieces (SKU: F9147A). But before I would like to know if the two parts of the filter are unscrewable. It is important for cleaning. Thank you for your reply.

Why pay more? This variable filter is great and makes observing the moon comfortable as you can adjust it to suit your personal taste. Does the job well.