![]() An APS-C sensor (also known as a crop sensor), has a crop factor of 1.5x (on Nikon and Sony cameras). I.e., with the telecompressor you don't need a full frame camera (in theory, it will never be quite as good). A full-frame camera is the standard it has no crop factor. For example a Canon FD 50mm on NEX would have the FOV of a 75mm lens on FF (crop factor is 1,5). The focal length does not change, it is what it is. Just enter the focal length and maximum aperture of your lens and. Rincewind79 wrote: When using a FF (35mm, Full Frame) lens on a APS-C sensor you have to recalculate the focal length. ![]() You will be able to frame things up reasonably well without even turning the camera. However, the A7 doesn't require any glass adapter, so you are better using the A7 with 35mm and a non-telecompressor adapter.Īgain, all the telecompressor does is convert your full frame lenses into APS-C equivalent lenses. Get the full-frame (35mm) equivalent focal length and aperture for different sensor sizes. This results in a 24mm lens on a APS-C/Super35 camera behaving like a 35mm. Evidence that full-frame equivalents matter (to some). I have a hunch that I would get different results in APSc user groups If 50 of the group is doing it, these users may consider the full-frame as a standard. ![]() This sounds impressive, and it is for APS-C, but when using the A7 and a 35mm f/2 lens and a normal adapter, it is already equivalent to an A6000 with 23mm f/1.3 lens, so basically the same. 50 of the MFT users convert their numbers to FF-equivalents. You don't need the speed increase with a full frame camera, just use the lens natively (with a Metabones, or equivalent Canon EF to Sony E adapter) since the larger sensor offers this same "speed" boost by being able to shoot at higher ISO and maintain same amount of noise.įor example, on APS-C, if you use the metabones telecompressor with a 35mm f/2 lens, it converts it to a 0.71x times that, so 25mm f/1.4 lens. 1 I'm assuming that when a lens is designed specifically for APS-C, the listed focal length in the title is the exact length when put on an APS-C camera, without the need for any conversion multiplication No, they always give the focal length in the 35mm equivalent. So, as other are saying, a telecompressor is specifically for use on full frame lenses and APS-C camera body. There is no native TC for E mount, so this is out, and this route is almost always less desirable, most people go APS-C to full frame, not the other way around. But if you make a crop sensor that is 18mm wide but still has 36 photo sites (kind of like an APS-C sensor thats 24MP compared. Speedbooster (a telecompressor) converts full frame lens to APS-C equivalent (or just about).Ī teleconverter does the opposite, any APS-C lens could be converted to its full frame equivalent using a 1.5x teleconverter.
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