Dear Daveyboy
Its perfectly clear that you have no concept, on why the likes of Leica and Zeiss come top of the ratings for anything to do with optics.
Money will be better spent, on an affordable pair of compact binoculars, say a 8x20 magnification.
Stay well clear of a monocular, because they have a very limited capability, and you only have to look at the optics market, to realise there are not many to choose from, because they are not high on the list of most customers.
I spend the best part of a year, testing and considering which monocular to buy, its a very small market, as most people stay well away from them, due to their limited magnification and limited choice.
A monocular is totally different to a pair of binoculars, and the difference in performance between an affordable one, and the Leica or Zeiss is significant.
Just read any of the reviews on monoculars, and unfortunately you have to pay a lot of money to get acceptable quality.
They all have such tiny magnification, that the quality of the optical glass is crucial, and cheap affordable ones, just cannot afford to use Schott glass, or high end optics.
Also, any small compact binoculars, from say, Praktika or Pentax produce great results, and there are many costing not a lot of money.
Their also extremely portable and compact, and take up very little room in your rucsac.
Some will even fit inside your chest pocket, so their size can be ideal for the walker.
When an optical device, has only one barrel to use to focus on the subject, the clarity of view is certainly brought into question when inferior glass is used.
If you do not believe me, then visit a good quality camera shop, and look through a few of them.
Its far less critical with binoculars, which is why a moderately priced compact binocular produced great results.
You only have to look through optical glass produced by either Swarovski or Leica, to realise why they are the chosen optics of professionals.
Their expensive for a reason, because they are the best at what they do, and no argument or criticism here, will change that.