05-19-2012, 09:09 AM
[quote name='Klaus' timestamp='1337412749' post='18297']
Are you sure that this was PF ?
Bokeh fringing can look like PF in certain situations.
[/quote]
Just to throw another ingredient into the soup, 'older' lens designs seem worse for PF, in addition to the other factors such as wide aperture.
An example is the Nikkor 180mm F/2.8.
So you could argue that yes, telecentricity is a factor in PF. However, the example I quote here is a tele lens, and a redesign would be unlikely to make incident light rays much more perpendicular to the sensor.
And yes, before anybody says it, some modern designs show the effect too. For example Nikkor 35mm F/1.8 DX
Regarding the effect of sensor, has anyone seen an improving trend with newly-introduced sensors? I'm still back in the dark ages with D40/D200.
Are you sure that this was PF ?
Bokeh fringing can look like PF in certain situations.
[/quote]
Just to throw another ingredient into the soup, 'older' lens designs seem worse for PF, in addition to the other factors such as wide aperture.
An example is the Nikkor 180mm F/2.8.
So you could argue that yes, telecentricity is a factor in PF. However, the example I quote here is a tele lens, and a redesign would be unlikely to make incident light rays much more perpendicular to the sensor.
And yes, before anybody says it, some modern designs show the effect too. For example Nikkor 35mm F/1.8 DX
Regarding the effect of sensor, has anyone seen an improving trend with newly-introduced sensors? I'm still back in the dark ages with D40/D200.