03-15-2011, 11:11 AM
I thought we already covered SLT ghosting to death when the cameras first came out?
To recap from memory, so the numbers probably are not exact:
The mirror ghost only happens in one direction relative to the original due to reflections between the mirror surfaces.
The offset between each ghost generation was some small number of pixels.
The level loss between each ghost generation was quite a bit. I can't remember, but I got a figure around 8 EV in my head.
Put the above together, you need a bright light source and immediately next to it a darker area low enough to show the ghost. This can most easily happen if you have clipped point sources. In the samples I saw, this was quite obvious on distant streetlamps in a night shot for example. Similarly stars and other highlights can also show it.
To recap from memory, so the numbers probably are not exact:
The mirror ghost only happens in one direction relative to the original due to reflections between the mirror surfaces.
The offset between each ghost generation was some small number of pixels.
The level loss between each ghost generation was quite a bit. I can't remember, but I got a figure around 8 EV in my head.
Put the above together, you need a bright light source and immediately next to it a darker area low enough to show the ghost. This can most easily happen if you have clipped point sources. In the samples I saw, this was quite obvious on distant streetlamps in a night shot for example. Similarly stars and other highlights can also show it.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.