The LACERTA Herschel Prism is a high-quality solar observation accessory designed for safe and detailed white-light solar viewing and imaging.
Unlike traditional solar filters that block most of the incoming light, a Herschel prism diverts the majority of sunlight away while allowing a small, controlled portion to pass through for observation. This results in superior contrast, fine surface details, and enhanced visibility of sunspots and solar granulation.
The LACERTA Herschel Prism is built with precision optics and incorporates a multi-coated prism for minimal light scatter and optimal image clarity. It is ideal for use with refractor telescopes and is compatible with additional neutral density or polarizing filters for further brightness control. With its robust construction and premium performance, the LACERTA Herschel Prism is a solid choice for solar observers seeking exceptional white-light solar views.
As the LACERTA team notes, “The LACERTA Herschel Prism is built quite differently compared to others on the market as It makes use of the full polarization possibility at Brewster angle, compared to only partial at the 90-degree versions.”
They continued, “Why Brewster angle? Since the polarization comes close to 100% at Brewster angle (57°), it enables continuous and even complete dimming with the mandatory ND3 neutral density filter and an additional Polarization filter – in reality a dimming range between ND4.07 and 6.37 – usually even more (equivalent to 240x dimming factor)! Without Polar filter the Herschel prism operates at ND 4.07 – good for photos. The 90° “traditional” Herschel prisms can do 4:24 to 5:00 (equivalent to 6x dimming factor only). It can be seen that the granulation in traditional Herschel prisms is well observable only with an additional third filter (ND3 and polarizing filters are required!). Herschel prisms with Brewster angle do not need an extra filter, because the dimming range here continues to until ND6.37!”
You can learn more about the LACERTA Herschel Prism here.
And if you want to learn more about safely viewing and imagng the Sun, The Definitive Equipment Guide to Viewing and Imaging the Sun ca be found here. It provides an easy-to-consume introduction to the technological options for enhancing your solar imaging and observing experience. We cover the gamut of options available including building your own solar viewer, solar glasses, smart phones, DSLR cameras, astronomy telescopes, solar telescopes, binoculars, solar filters (including a DYI filter option), CCD astro cameras, astro video cameras, and much more.
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