BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="Kevin Purcell" data-source="post: 1362690" data-attributes="member: 68323">You should try a set of Promasters, Tero. My experience is that they will beat the Pentax EDs unless the Pentax EDs are really, really good. And given where they seem to rank I suspect they may be below the EDs. Though I'd love to see a head to head evaluation of these (armchair speculation is easy!).Thanks for the write up, DHB, despite the weather and the time of year (I though that might have something to do with it!). If you get a chance for a closer apprasal (especially when activley birding) I'd be interested to hear it. I can also see your point about the focus: the PMs do seem to need the right focus but when the 8x PMs are on focus they are very sharp. I can imagine the 10x depth of field/depth of focus is smaller so they need to be even more on the dot. I wonder if this drove the choice of gear ratio for the focus control? Faster focus would be nicer for general use but would it end up being so fiddly as to be annoying (especially with an imprefections like backlash ... I don't detect any but I could imagine that being a limiting factor). Just another of the many bin design choices.</blockquote>