I have the V750 (I believe now superseded by the V800). And although the film holders are not that well made, it doesn't seem to affect results, which I am pleased with.

Thank you all for the excellent information. Very much appreciated.
Regards
A.J.R.

Could any member recommend a good camera repair shop, in the UK?

Yes A0 is 841 x 1189mm

A2 = 420 x 594mm
A3 = 297 x 420mm

It might be worth setting your camera to default and trying again.

https://www.youtube.com/watch?v=7YWb72KMpgY

With care there should be no problem in rewashing your negatives. If you haven't got Photoflo the smallest spot of washing up liquid will do the trick. I don't think however washing them in running water will remove any ingrained dust/dirt. I would suggest placing them carefully in a tray of water (with wetting agent) somewhere around 15 to 20 centigrade (You don't want to introduce reticulation) and very gently rubbing them with the tip of your finger, whilst the negs are submerged. Hanging single or strips of negs up to dry can be quite tricky as water marks can be left if water runs from any thing suspending the negs. A pin might work better than anything larger, but do take care at this stage as you might have more problems than you have already.

Personally I would suggest a good quality mouse (Possibly a gaming mouse). I have tried a Wacom tablet but (unlike the comments above) found it very difficult to get any fine control of the cursor.

frankie c is correct. Black is the best colour to paint your studio, you then have perfect control over your lighting, adding reflectors where and when necessary.

I have converted an old drill stand. Very sturdy and ideal for macro. If needed it can be turned to photograph larger objects of the edge of a table.

I have the Epson Perfection V800, which I would guess the soft ware would be similar. It allows the image to be cropped and the resulting size and DPI to be chosen.

If you have not already done so do take a look at the photographs of O Winston Link.

https://www.google.co.uk/search?q=o+winston+link+images&ie=utf-8&oe=utf-8&client=firefox-b&gfe_rd=cr&dcr=0&ei=pqK7WbnwFOzv8AfiuYDgAg

It might also be worth looking at this

https://www.outdoorphotographer.com/tips-techniques/travel-photography/lights-locomotive-action/

To do it well needs a lot of work as you can see.

Forgot the Sinar 5x4

Adox Rangefinder Golf, Rolleicord v, Mamiyaflex C330, Mamiya 645, Hasselblad CM, Rolleiflex 2.8 F, and Rolleiflex 2.8 GX.

Yes. Gandolfi quarter plate, Kodak specialist half plate, Whole plate camera (name of which escapes me), and MPP 5x4.