Hi Anthony
I found the apex researcher really good for the BBKA microscopy preparation and exams. It is simple to set up and adjust and the optics are good. I found the eye cam plus really simple to use to and gave some good results. The key to great microscopy photos at the magnification you need for pollen work is layering software, which allows you to “stitch” together photos of the same object, to overcome the issue that the object is bigger than the depth of focus of the lens. I use Zerene Stacker but also looked a Helicon.
I have found the team at Brunel microscopes really helpful when I have rand them with questions. (Apex is a part of their business and you get the same person if you ring the Apex or Brunel number!)
Good luck with your journey into microscopy, it is fascinating!
Regards Ian