Have not received yet, but some info for Astro Milky Way photographers you will not be able to get the Milky Way Arc it will be like a 12mm or 14mm the Milky Way will stretch across from right in the SE to left in the NE. But the happiness is when you do a pano in portrait view you will get coverage all the way up and over your head to a little past your back getting more pinpoint stars to work with in your pano image when put together. Meaning you maybe able to get a super high arc even till August and maybe September. But a vertical up and over in September and October wil be a one shot. Another thing instead of doing a pano say at Horseshoe Canyon on the very edge of the canyon with no rope to hold you if a gust of wind you will get the capture in one shot get the water below and the mountains on the horizon and lots of cloud filled sky in one shot without having to play with cloud movement in a pano program. I have had the the Voigtlander 10mm f/5.6 for many years and know. One word of caution 10mm like a 12 or 14 its not to get it all in just remember how far away things will look, a landscape will be too far to make out the far stuff, just some help! And if a moon in a capture you will not see it it will be too small.