Hi
Shot the Rosette with Berts 300mm f2.8 flourite lens last night.
3x10 mins iso400, Idas uv/ir and Baader uhc-s filters. Modded 350D, processed in Iris and Photoshop. Noiseware used. Hand guided on the same "Sampson" mount as used for my 10 inch scope. Larger version here.
http://www.iceinspace.com.au/uploads...ilteredbig.jpg
Its a joy using this lens, even under light polluted skies, the red nebulosity readily appears even on the original images with the help of the uhcs filter, the fast lens works great with the filter.
Scott