The Nikon Action "EX" are more expensive but an infinitely better binocular if you can stretch the budget further. Nothing much has changed in life, you basically get what you pay for. I rate the Nikon Action's as fair only. Importantly the 8x40 Action 7's have only 11mm of eye-relief whereas the 8x40 Action EX have about 18mm of eye relief. If you shop around you will find the 8x40 EX for about $300, rrp is about $450.
http://www.maxwell.com.au/products/n...ard/index.html
If you're interested I would be prepared to sell you my Pentax 8x40 PCF WP for $170, these have a lifetime warranty and have been hardly used. Refer to my previous advert in buy and sell.
http://www.iceinspace.com.au/forum/s...ead.php?t=2034
CS-John B