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Archive 2012 · Nikon CX lense image circle?
  
 
kawasakiguy37
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p.1 #1 · p.1 #1 · Nikon CX lense image circle?


Has anybody tested the size of the image circle on the new Nikon CX lenses? As in not the sensor size of the J1/V1, but the actual size of the projected circle at the correct flange distance


Oct 24, 2012 at 06:58 AM
kawasakiguy37
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p.1 #2 · p.1 #2 · Nikon CX lense image circle?


Bump - anybody with nikon 1, can you test this?


Edited on Dec 11, 2012 at 01:59 AM · View previous versions



Dec 04, 2012 at 09:52 PM
HauntedHat
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p.1 #3 · p.1 #3 · Nikon CX lense image circle?


How can you measure such thing?


Dec 09, 2012 at 06:56 PM
EB-1
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p.1 #4 · p.1 #4 · Nikon CX lense image circle?


Hold the lens at the distance of the film plane and see what image it projects.

Most lenses don't have much extra in the way of coverage, but some zooms do. Even so, the IQ typically degrades in the area outside of the specified circle of coverage.

EBH



Dec 09, 2012 at 09:02 PM
 

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lxdesign
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p.1 #5 · p.1 #5 · Nikon CX lense image circle?


Apparently in an article I read, the 1 system could be capable of 4k capture in the future.


Dec 10, 2012 at 12:38 AM
kawasakiguy37
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p.1 #6 · p.1 #6 · Nikon CX lense image circle?


4K certainly seems possible given the size of the sensor is smaller = less data to process

My original reason for wanting to measure the image circle is something different however - if the nikon 1 lenses do indeed project something significantly larger than the current sensors, we might be seeing future Nikon 1's with larger sensors..... (although certainly nothing larger than micro 4/3)

Can anyone confirm? Holding the lens with a flashlight shining through at the correct distance (same as the distance it would be to the sensor/film plane) to a piece of paper should be enough to measure the size of the circle



Dec 11, 2012 at 01:59 AM
EB-1
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p.1 #7 · p.1 #7 · Nikon CX lense image circle?


kawasakiguy37 wrote:
4K certainly seems possible given the size of the sensor is smaller = less data to process



What difference does the sensor size make? The number of pixels determines the amount of data to process/frame.

EBH



Dec 12, 2012 at 01:48 AM





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