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In 2019, Viltrox introduced a 85 mm f/1.8 AF lens lacking an aperture ring. [39] In April 2020, the same company introduced a 33 mm f/1.4 lens with an aperture ring. Two more Viltrox lenses, 23 mm f/1.4 and 56 mm f/1.4, are announced for 2020. [ 40 ]
Brand Ref. Model Intro. Focal Length Aperture Opt. Stab. Wgt Filter Size ⌀ Len. Min Focus Magnification Wide Angle Tele photo ; Min Max Max Min Max Min
The Micro Four Thirds system (MFT) of still and video cameras and lenses was released by Olympus and Panasonic in 2008; lenses built for MFT use a flange focal distance of 19.25 mm, covering an image sensor with dimensions 17.3 × 13.0 mm (21.6 mm diagonal).
However, production slowed and then eventually stopped for both the AF and MD versions; its successors, the 70-210mm f / 3.5-4.5 and 70-210mm f / 4.5-5.6 had none of the qualities of the original and build and image quality decreased. [citation needed]
Minolta merged with Konica to form Konica Minolta in 2004, and the restyled lens remained in production until the Konica Minolta camera division was acquired by Sony in 2006. [4] Sony did not re-release the 50 mm f /1.7 as a Sony A-mount lens, releasing a similar 50 mm f /1.8 lens (SAL-50F18) for APS-C sensor DLRs instead in 2009. [5] [6]
The image sensor of Four Thirds and MFT measures 18 mm × 13.5 mm (22.5 mm diagonal), with an imaging area of 17.3 mm × 13.0 mm (21.63 mm diagonal), comparable to the frame size of 110 film. [4] Its area, ca. 220 mm 2 , is approximately 30% less than the APS-C sensors used in other manufacturers' DSLRs ; it is around 9 times larger than the 1/ ...
The lack of an internal autofocus motor means that this lens cannot utilize its autofocus capabilities on entry-level camera bodies such as the D40, D60, D3000, D5000, D3100 or D5100; however, a newer version of the same lens, the Nikon AF-S Nikkor 50 mm f/1.8G, will autofocus successfully on these cameras. [2]
The 18-55mm f / 3.5-5.6G AF-S Zoom-Nikkor lens is a midrange zoom lens manufactured by Nikon for use on Nikon DX format digital SLR cameras. Often included as a kit lens on entry-level DSLRs, it also can be purchased separately from the camera body.