This is probably my best photography of Mars even though it does not exhibit the side of mars with the most features. The seeing was great for my location (Alpo seeing 6/10). Mars was quite high in the sky. The conditions were as good as for the shot I took in November. Orographic clouds over Olympus Mons can be seen, and as well as albedo features such as Phlegra Montes, Phlegethon Catena and Amazonis Planitia. Picture taken at roughly f/d 40 using a 2.5x Siebert optics barlow with DMK B&K Camera – about 1,500 rgb frames – each frane between 1/10 and 1/15 sec of exposure.
For those who are wondering why it is possible to capture (when the seeing is great…) details that are at or sometime far below Dawe’s limit – look at the excellent article from Damien Peach on this topic, explaining why Dawe’s limit is not really applicable to extended objects (planetary disk) with high contrast features.