new version Focal reducer/Speed booster adapter
for/Nikon AI/AIS/F and G type lenses to Canon EOS-M mirrorless camera
All metal structure, with excellent opticals (4 elements/2 groups)
it has the aperture lever pusher ring on the adapter, to allow aperture adjusting with Nikon G lenses
what it does:
reduce the focal length (by 0.72x wider)
Ex. 50mm lens on NEX with the adpater, eff. focal length is 50mm x 1.5(crop) x 0.72 = 54mm
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).
what it does not:
there is no electronic integration, no auto focusing
note some customers reported the blue spot occurs if shooting in sunlight or in ambient with high contrast. Please be aware of this.
sample review of our focal reducer by Joseph Moore
Joseph Moore review of our speed booster
sample review footage of our focal reducer
RJ speed booster review footage
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