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Extension tubes are sometimes confused with teleconverters, an optical component (i.e., containing lenses) designed to increase effective focal length. A close-up lens also enables focusing closer for macro photography but, unlike an extension tube, a close-up lens actually is an optical element.
The EF 100 mm f / 2.8 Macro USM lens is a prime lens made by Canon Inc. It is of the EF lens mount that fits the EOS camera system . There are three versions, the original, a second that adds a USM autofocus motor, and a recently released L series version that incorporates Image Stabilization (IS) .
That distance is sometimes given on the filter in millimeters. A +3 close-up lens has a maximal working distance of 0.333 m or 333 mm. The magnification is the focal distance of the objective lens (f) divided by the focal distance of the close-up lens; i.e., the focal distance of the objective lens (in meters) multiplied by the diopter value (D) of the close-up lens:
Sean "Diddy" Combs has been sued again as his legal issues mount.. The embattled music mogul, who is awaiting a May 2025 trial for federal sex crimes, was sued Monday, this time by a former male ...
Former Texas sheriff's deputy Renard Spivey had a long television career as the courtroom bailiff on the show "Justice for All with Judge Cristina Perez." In 2019, his life changed drastically ...
In rural Georgia, a 10-year-old boy left home and walked a mile down the road to another town, where a concerned citizen called law enforcement. Deputies then arrested the boy’s mother, igniting ...
Most email software and applications have an account settings menu where you'll need to update the IMAP or POP3 settings. When entering your account info, make sure you use your full email address, including @aol.com, and that the SSL encryption is enabled for incoming and outgoing mail.
The Fotodiox LM-NKZ-PRN is another autofocus Leica M to Z adapter. [116] The Megadap MTZ11 contains a focusing helicoid with 6.5 mm of extension which is used for autofocus. This range is sufficient to cover the full focusing range of lenses up to around 50 mm focal length. [117]