I would be grateful on any advice on the zoom lens on my nizo 561 macro. I've noticed that, on shots where I've zoomed in on an object and focused, start shooting and slowly zoom out, then on viewing the processed film, the image I'd originally zoomed in on and focussed on becomes out of focus as I zoom out.
I researched type of lenses and obviously it comes down to whether the camera's lens is of a parfocal or varifocal type. I understand that any cine camera would have to have a parfocal lens, to preserve the focussing on an image during a shot where the zoom might be changing.
Does anyone know if super 8 cameras (and my Nizo 561 in particular) do indeed only have varifocal lenses? I would be very grateful if anyone can suggest a super 8 camera which they know for certain has a proper parfocal lens.
I also thought that the correct procedure for focussing on objects is to zoom in to maximum zoom, focus and then zoom out to take the shot. If the camera doesn't have a parfocal lens, does this not therefore make this technique redundant, guaranteed to actually lead to an out-of-focus shot?
Any advice gratefully appreciated!