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focal reducer speed booster adapter for Nikon F/G AI AIS to Sony NEX 5 6 7 FS700 FS100 VG20 EA50

focal reducer speed booster adapter for Nikon F/G AI AIS to Sony NEX 5 6 7 FS700 FS100 VG20 EA50
Product Code: AI-NEX speed booster
Reward Points: 0
Availability: In Stock
Price: $75.00
Ex Tax: $75.00
   - OR -   

 

new version Focal reducer/Speed booster adapter

for/Nikon AI/AIS/F and G type lenses to Sony NEX mount 3 5 6 7 camera FS700 FS100 VG

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).



and this new version is made to overcome the a)blue spot b)slight green tint issues in the old version

the edge fall-off is still to be expected though, this is by nature, not a design issue



  what it does not:

there is no electronic integration, no auto fucusing

 

 

 

 




(note that if your lens has extended protrusion on the rear, please be careful, as it might get in the way with the opticals inside)

 

 

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