The new photo-tube arrived this morning and so, after dismantling the optics and cleaning everything, I fitted the 20 MP sensor and have been playing with lighting and took a few shots. This one (of the centre of a small Viola) came out nicely. Low angle polarised light from 2 4K Relio heads. Wild / Leica M420 with 20 MP CCD. PP in LR / Nik ColorEFEX Pro 2.