This month’s image is a wide-field taken using the amazing Canon EF200 f#2.8 prime lens and a Canon 5D MkII DSLR. Piggy-back mounted on the C11 I took 10 x 5-minute subs at ISO 400 and f#4 with an IDAS filter attached to the EF200. As expected the Heart and Soul nebulae didn’t come out too well with the un-modified 5D MkII, but I am very pleased indeed with the nice round stars from corner to corner over a 10 x 6.8 degree field of view – something well beyond the capabilities of my refractors. Looks like I will be using this rig for star fields and reasonably high resolution constellation shots.
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