When attached to a lens having a focal length of F, a 1.4Ã TC results in an effective focal length of 1.4ÃF, whereas a 2Ã TC results in an effective focal length of 2ÃF. Thus, a 400mm lens with a 1.4Ã teleconverter attached provides the same magnification as a 560mm lens, since 1.4 Ã 400 = 560. Similarly, a 400mm lens with a 2Ã converter produces the same magnification as a true 800mm lens. For birders, teleconverters can be a godsend.
The best handgun for law enforcement is one which fits the individual user. It should have no external safety which makes for ease of use.Everyone gets all fired up over caliber and âstopping powerâ. There is no such thing as stopping power itâs all about shot placement.est Answer. The best handgun for law enforcement is one which fits the individual user. It should have no external safety which makes for ease of use. Everyone gets all fired up over caliber and âstopping powerâ.
The Walther P99 has really good grips that make this 9mm pistol feel like it belongs in oneâs hand. For a striker fired gun, it has an excellent trigger and deserves a 9/10 rating. In SA mode, the trigger will feel crisp and short like that of a 1911 combat pistol.. CZ 75 SP-01. CZ 75 SP-01 most accurate handgun. Most gun lovers have their own preference when it comes to the best 9mm pistol, but most of them will agree that these are indeed the top ten best 9mm pistols in 2014-2015 because they are great shooters and are reliable.