This is an extremely sharp macro lens that is capable of 1:1 ratio. I use it to get close-up of flowers, insects, and other tiny objects. Some of the lens ...
Overall, this is an excellent lens. It is the only lens I take with me to shoot roller-hockey games. Based on my experience, the focal length of the Canon 300mm ...
Recently, I had obtained a Digital Rebel. It worked with the lens fine at wide-open aperture. When stopped down, the camera goes into error state. After ...
Explains the purpose of stacking teleconverters and how to calculating focal length, aperture, and aperture diameter.
The Olympus 1.45x teleconverter is intended for Olympus ZLR camera lines. These SLR cameras have zoom lens permanently attached to their bodies.
Olympus 1.45x Tele Conversion Lens produced this image. The magnification looks identical to the Olympus C-160 1.45x H.Q. Converter below.
These teleconverters include front and rear lens caps, lens pouch, and instruction manual. The C-210 model even comes with a built-in lens hood that snaps into ...
Jan 11, 1999 · Notice! Sigma Apo Tele-Converter EX 1.4X / 2X are dedicated Tele Converter lenses, which should be used only with lenses listed in [Table 1]. If ...
The Sigma 20mm f/1.8 D EX DG Aspherical Lens has a clutch-like system for switch between AF and MF modes. The system is very similar to the Sigma 105mm f/2.8 EX ...
HSM provides high speed auto focus and is silent in its operation. Minimum focal distance supported by this Sigma lens is 220cms with maximum reproduction ratio ...