[garymck (Gary)]

Hi,
I have just purchased a new QHY9 + CFW2. I would like to try some extreme widefield shots using some Nikon lenses.

The camera + filter wheel eat up 33.5mm of back focus.

I don't know what Nikon lenses use? I think it is something like 46mm.

Does this mean that with a lens to m42 adapte an a spacer of the required length I could attache a Nikon lens?

Sorry if this is really basic, but I've not done it before...

TIA
cheers
Gary