M.Zuiko DIGITAL ED 100-400mm F5.0-6.3 IS, Super Telephoto Zoom, Suitable for all MFT Cameras (Olympus OM-D & PEN Models, Panasonic G-Series), Black

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What tips it over into the Canon camp though is the fact that the rotational direction of the zoom ring is the same as it is in own-brand lenses, meaning it slots into an existing collection more naturally.

When the wavelength is much smaller than the aperture width diffraction is not an issue, and 18mm is way beyond visible light.

The comments about diffraction were not substantiated and in my experience with Olympus Pro Lenses will not be an issue at anything like f8-f9. Tactile Separation of Zoom and MF rings– Tactile separation of Focus and Zoom rings on Olympus is just excellent. should be the same for both (and will be with manufacturers who don't deliberately cheat) – but that's just for infinity.

Their 2x crop factor means that, to calculate the equivalent 35mm range of an attached optic, you multiply the focal length by 2x – which makes this latest Olympus lens a whopping 200-800mm.Personally I will always want a long focal length zoom as the benefits it offers my photography are so much, There is no doubt in my mind that this is the perfect lens for the serious wildlife and sports photographer so hats off to Olympus / JIP for delivering what we want.

The question remains, which image stabilisation will be more swift and expedient on the lower models, such as the E-M10/ E-M5 series. We experienced better results using the lens stabilization at longer focal lengths (where IBIS is traditionally less potent) and body stabilization at the 'wider' end.Bear in mind, though, that with most subjects for this lens’ use, faster shutter speeds will be maintained to prevent motion blur in any case. The Panasonic has a low-profile tripod shoe that can be easily unscrewed when the lens is mounted on the camera, a zoom lock that can be engaged at any focal length, and a control panel that rotates to stay accessible when shooting on a tripod in portrait format. Tripod-based shots are obviously free from the perils of amplified camera shake, but shooting handheld will require textbook form to ensure sharp shots.

If you are happy with the Canon 70-300mm, then sure, just adapt it to an EOS M body, given you are ok with the lens selection. Olympus / JIP have delivered a world leading lens and state of the art Bird Tracking AI as they promised and have delivered when they said they would, in 2020.VR S is bristling with technology and handling exotica, and it delivers first-rate performance in all respects.