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.
Different folks will have different opinions on what the best 22lr pistol is, and most likely there are a bunch of pistols out there that we did not mention on our list that perhaps could/should be. So please let us know what you think the best 22lr pistol is by leaving a comment in the comments section below.ifferent folks will have different opinions on what the best 22lr pistol is, and most likely there are a bunch of pistols out there that we did not mention on our list that perhaps could/should be. So please let us know what you think the best 22lr pistol is by leaving a comment in the comments section below.