Hi achro buffs, I've just become the (proud? see attached view though OTA
) owner of an old, tired & dirty f/11 Vixen Custom 90M. No matter, it wasn't expensive. Anyway there is dirt on all surfaces, including between the lenses and they really could use a clean. I seem to have figured out how to get them out, but the question is whether there is any way to ensure they go back in half-way collimated (the cell isn't collimatable), other than by marking their orientation?
