Please excuse, there is no answer to this question. What do you mean by "total light transmission"? The incoming light is split into two channels - evidently the light in both channels appears to be notably dimmer when you close one eye at a time and try to judge the brightness in each channel separately. What does not come into play during such kind of "fake-evaluation" is "the power of the human brain".
It happens "in the brain" that both light trains become reunified. And what actually happens there is that the image all of a sudden does NOT look dimmer but that fine detail and most subtle color differences within planetary surfaces become recognizable much easier and that observation happens effortlessly without fatigue - even when observing over a long time. Regardless of light throughput - the real virtue of a binocular viewer does lie in the optical quality of the glass and utmost care in optical surface polish, in perfect angle orthogonality of each prism, an immaculate beam splitter quality, highest degree of optical adjustment of all optical elements at any interpupillary distance - and only lastly: utmost coating quality. These are the most necessary criteria (in this order) for supporting an undeteriorated viewing experience with both eyes - even at highest magnification work. So - whatever anyone else is claiming - the Mark V has the best light throughput and the highest quality prism surfaces and adjustment - and and and - of any commercial astro-binocular viewer in the market.
Answer by: Baader Web Team (Admin) on Jan 11, 2018 8:27:00 AM
WARNING - using this filter on the sun visually will permanently damage your eye! The CCD narrowband Halpha filters are way to broad for making prominences or solar surface detail in Halpha visible and image will be much too bright for visual use. Halpha filters for solar observations like "SolarSpectrum" filters have 0,7nm. If you combine the CCD narrowband filter with our Astrosolar film you see nothing. Image will be completely black.
Answer by: Baader Web Team (Admin) on Dec 11, 2017 3:26:00 PM
Our company exists now for more than 50 years. In this time, more than 15.000 Baader Planetariums (the first patented product of our company) help all over the world to give students an understanding of astronomical correlations. In our own manufactory, more than 500 observatory domes have been produced and delivered turnkey-ready. Instruments and telescope accessories from "Baader" are known for their high qualities by many astronomers and universities. We consider it our duty and obligation, not only to sell telescopes, but an indivdually selected telescope system, that brings you a lifetime of joy.