J.M.B solar filters are manufactured to strict quality control standards, making them one of the best values on the market today. In both performance and appearance, our quality shows. All Identi-View glass solar filters feature a unique color code band around their diameter making identification of the filter class and use quick and easy.
Glass Vs. Mylar
Whats the difference between Mylar (film) solar filters and Glass Solar filters?. From a visual perspective there is not much of a difference other than durability. If you were to compare the Mylar filters on the market to ALL the Glass Solar filters on the market, it would hit you like a ton of bricks. Glass solar filters are manufactured to withstand a little abuse (but try to avoid). Cosmetically, they are just more pleasing to the eye. Thus, aesthetics and durability are the main differences between the 2 (two) types.
Color band-blue - Class "A" filters are made with the same premium quality polished glass and multi coating as class "B". An additional steel alloy added to the coating process make our Class "A" filters our biggest seller. Excellent for visual and photographic use. Light transmission is 1/1000th of 1%. Neutral density - 5. We are so confident in this filter that J.M.B. offers a lifetime warranty on this particular filter. It should be stated that this is a "No Excuse" will be turned down warranty.
* These filters are custom made and are designed to fit snugly over the objective end of your telescope tube assembly, or dew shield, as illustrated above. The various sizes listed refer to a "range" from which you'll select your filter. For example, an Astro-Physics Traveler 105mm refractor has a dew shield with an outside diameter measuring 4.94". You would purchase a 4.6"-5.5" Class A, B or C filter as as it falls within that "range".
During checkout, in the NOTES SECTION please indicate your optical tube or dew shield (if applicable) OUTSIDE DIAMETER.