full frame to aps c lens conversion
35mm / Full-Frame vs APS-C vs Micro Four Thirds vs 1″ / CX. If I were to mount a 24mm full-frame lens on an APS-C camera to capture the above shot, I would only be cutting off the corners of the image – not getting any closer physically. My focal length does not change in any way. It is still a 24mm lens.
The factor relating the 50mm focal length of the normal full frame lens and the 31.3mm of the equivalent normal APS-C lens is often called the 'crop factor', sometimes the 'digital multiplier'. Shoot at wider apertures and you risk getting softer images, due to blurring from lens aberrations and, perhaps, inadequate depth of field. Barring a few exceptions, lenses that are made for MFT and APS-C sensor size tend to be substantially more expensive than their full-frame twin. And this is even more starkly visible when the original FF lens has a small aperture value. Any full-frame lens which has a sub f/2 aperture value needs to be at least f/1 or less for an MFT system Sony has officially announced four new conversion lenses - two for full-frame and two for APS-C - that can be screwed onto a select group of lenses. On the full-frame side there are ultra-wide and fisheye adapters for the new FE 28mm F2, which drop the focal range to 21mm and 16mm, respectively. The adapters for APS-C lenses - the 20mm F2.8 and 16mm F2.8 specifically - and reduce the focal For Micro Four Thirds lenses, that would mean: Panasonic-Leica 25mm f1.4 would be equivalent to 50mm f1.4 on full frame, f2.8 equivalence in Depth of Field (DoF). Panasonic-Leica 42.5mm f1.2 would be equivalent to 85mm f1.2 on full frame, f2.4 equivalence in Depth of Field.An 17mm lens (APS-C or Full frame) on an APS-C body have a similar field of view to a 27mm lens on a full frame body. That doesn't mean that it is a 27mm, there is no real conversion. Focal length is an optical property and it's a bit more complicated than saying that the body "converts" the focal length. People will use "equivalent focal
First the EF lenses are designed originally for a full frame camera, but they can be used on an APS-C body. EF-S lenses cannot - basically the smaller mirror of the APS-C body means that the EF-S lens can protrude further into the camera body - this allows the EF-S lens to be made much more cheaply without necessarily losing quality.
With a focal length ratio of an unprecedented 22.2x, the all-in-one zoom Tamron 18-400mm for Canon and Nikon APS-C cameras delivers an ultra-telephoto range equivalent to 620mm in the full-frame format. From wide-angle to ultra-telephoto, it offers exceptional optical performance across the entire zoom range.