In addition to those mentioned above (Nikon, Leupold, Bushnell, Zeiss, & Swarovksi), you should look at the Vortex line of scopes. They will match the Nikon and Leupold in quality, but beat their price. They will give Zeiss and Swarovski a run for their money at a fraction of the price. I've used all of the above brands in either binocular, spotting scope, and/or rifle scope form both for hunting and professionally doing wildlife surveys and they are all top notch, IMO. If you are looking for good quality without breaking the bank, Nikon, Bushnell, and Vortex. If you have the money, Leupold and Zeiss. If money is no object, Swarovski. Good luck!