A few days ago I used this excellent lens for AP again, using a 6D with it mounted on a Vixen SP and made 15 frames of 3 minutes each.
Stacked with Photoshop and postprocessed with PS and Affinity Photo.
This lens is a really good AP lens, razor sharp till the edges at full aperture, with similar properties (at 400mm) of the popular WO Quadruplet 65mm f/6.5, this is a 70mm f/5.6 when zoomed in fully.
The object is a red emission nebula about halfway between Crux and the Eta Carina nebula with Lambda Centauri in its center (right in the photo).
The other photo shows the setup running in a garden in Bathurst.
