When I first imaged Sirius and the Pup (feb 08 I think) it was met with some scepticism in the double satr world as it was largely thought to be impossible. I have to add, that I made the observation purely by chance as I was stuffing around with my telescope and had just swung it on to Sirius as a conveniant bright thing.
I think the scepticim was justified as there had been many claims (I was to discover) that were totally bogus - and they are still out there!
Even though I could reliably repeat the observation, I still needed to rigorously justify the method - something I did by taking reference images of canopus - a bright non-double, and taking images at differnt times of night to show the rotation caused by my alt-az mount.
It certainly taught me to make an log of observations as I always do now. And I think that the riggor is justified too.
In Rod's case, the image is as I would expect which is a good thing. It will be a even better when he repeats the exercise in the next few months. 'Onya Rod
For those tuning into this thread the separation in 2010 season is now so large that it will be a much easier target photographically, and possibly visually. I expect to see lots of great images cropping up. It is 24 years since the separation was this great - way before digital imaging.