: Amopofo Focal Reducer Speed Booster Adapter Nikon F Mount G to Olympus Micro 4/3 GH4 OM-D Adapter : Electronics. Amopofo Focal Reducer Speed Booster Adapter Nikon F mount G to Olympus Micro 4/3 GH4 OM-D Adapter 。 Focal Reducer Speed Booster Adapter Nikon F mount G to Olympus Micro 4/3 GH4 OM-D Adapter 。 Brand: 。 It is 100% brand new and quality is guarantee。 Description:。 In common lens adapters, cropping effect occurs in all APS-C digital cameras with 1.5x magnification. This adapter reduces focal length to 0.72x , to adjust the image size to near 1:1 so that the focal length of the image is close to actual focal length of the lens, e.g. 50mm x 1.5 x 0.72 = 54mm. 。 For using Olympus Micro 4/3 GH4 OM-D digital cameras with all Nikon F mount G mount lenses.。 Allows focus infinity. Switching camera to "Shooting without lens" mode is essential.。 Function:。 1. Reduce the focal length (by 0.72x wider)。 2. Effectively increases the maximum aperture of the lens by 1 stop (in other words, under the same aperture, you can use faster shutter speed (by 1 stop).。 3. It helps to increase the maximum aperture to 1 stop, and you can use it faster by 1 stop.。 4. Blue spot will occur if lens is shot to sunlight or lamp directly.。 5. It cannot be used in EF-S lens. No external aperture ring, aperture cannot be adjusted.。 6. Allow focus to infinity。 Settings:。 1 . Put red marks of the adapter and lens collar together.。 2 . Turn the adapter anticlockwise till the fixative click.。 3. Mostly it will use Manual or Av mode.。 Removing:。 To remove the adapter you should un-press fixative pin and turn the adapter clockwise.。 Suitable for:。 Nikon F mount G Mount lens 。 All digital cameras with micro 4/3 mount, such as 。 Olympus EP1,EP2,EP3,EPL1,EPL2,EPL3,EPL5,EPM1,OM-D E-M5;。 Panasonic G1,G2,G3,GH1,GH2,GF1,GF2,GF3,GF5,GX1 etc..。 Package Includes:。 1 x Lens Adapter。 1 x Front Cap。 1 x Rear Cap。 。 。 。
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