Recommended Posts
BMFin 0
Quote
An 18 MP full-frame sensor will give you a sharper image than an 18 MP APS-C sensor.
This is only due to the fact that on the APS-C sensor, some of the 18 MP will be lost due to a lack of optical resolution (sharpness).
yes. Agreed.
But when we talk about HD-video resolution (1920x1080) this has no effect at all.
Quote
Yes... In terms of sensor resolution .... But the word "resolution" may also relate to optical sharpness.
You are right.. I was a bit off there..
Yes... When shooting HD video, the sensor format shouldn't make much difference.
The test you are referreing to is using the unit of LW/PH (Line widths per picture height)
In order to utilize the 18 MP of the EOS 7D, the optics would need a resolution of 3456 LW/PH, equal to the vertical number of pixels on the sensor.
(And the 17-55 f/2.8 USM is one of the sharpest canon lenses)
QuoteAcoording to this even the non-L zoom lens 17-55 2.8 will deliver 2536 LPPM
The test you are referreing to is using the unit of LW/PH (Line widths per picture height)
In order to utilize the 18 MP of the EOS 7D, the optics would need a resolution of 3456 LW/PH, equal to the vertical number of pixels on the sensor.
(And the 17-55 f/2.8 USM is one of the sharpest canon lenses)
You're right... I was a bit unprecise with that statement.
What i really meant was:
An 18 MP full-frame sensor will give you a sharper image than an 18 MP APS-C sensor.
This is only due to the fact that on the APS-C sensor, some of the 18 MP will be lost due to a lack of optical resolution (sharpness).
That would not be the case with a full-frame sensor and good optics.
Yes... In terms of sensor resolution .... But the word "resolution" may also relate to optical sharpness.
Share this post
Link to post
Share on other sites