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 SIG Sauer Tac Ops 1911 with Threaded Barrel is of the best handguns for home defense. Comparable: Para Ordnance 1911âs, Kimber 1911âs, Customs, the list goes on and onâ¦. Pros: All steel build, makes the .45 ACP manageable for just about anyone.Threaded barrel from the factory and ready for a suppressor if you are.&K USP Full Size Tactical 9mm with a Suppressor is of the best handguns for home defense. image via. Comparable: Sig Sauer various models, FN Herstal various models, Glock various models. Pros: Unrivaled fit, finish, and performance.