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M8 vs M9 Sensor comparison
- Thread starter dude163
- Start date
V
Vivek
Guest
I think you mean with the M9. The M8 is more sensitive to IR.
With the M9 you can shoot with large aperture lenses in IR during the day, and with a tripod if slower than F/2.0. I do this regularly.
eg.
Subtle, but the glasses are black framed in visible light.
Colour is below.
Daniel, I meant the M8. It is pseudo near IR. Even if you expose it for hours (with suitable filters, of course), anything over 700nm is unlikely to register and if any red is there through the filter used, that gets registered.
However, aside from these numbers and the nitpicks over the spectral regions
)), the key is that the M8 allows for some creative expressions. That is what I was suggesting to Robert- to expand the use of his M8 with what it can already offer.The lovely example you posted are the norm.
V
Vivek
Guest
False color, near Ultraviolet example.
Leica M8 false color UV by Vivek Iyer, on Flickr
Leica M8, ISO200, Industar 50/2.8, f/2.8, 1s, Baader U 2" filter
Leica M8 false color UV by Vivek Iyer, on Flickr
Leica M8, ISO200, Industar 50/2.8, f/2.8, 1s, Baader U 2" filter
The M8 has a thin IR absorbing filter over it's Silicon CCD sensor, but quite a bit of Near IR leaks through, compared with other cameras. The sensor itself is sensitive out to 1100nm. A quick test taking a picture of a Wii game LED bar with and without an IR cut filter over the lens gives a quick indication of how sensitive that the M8 is to near IR. It also shows how effective the IR CUT (Hot Mirror) filter over the lens is in eliminating the IR contamination. The LED's used in the Wii controller are ~900nm.
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Leica M8 WITH Leica UV/IR filter over lens, C-Sonnar 50/1.5 wide-open, 1/4th second exposure.
Leica M8 WITHOUT the UV/IR filter over lens, C-Sonnar 50/1.5 wide-open, 1/8th second.
I've used a Wratten 88A filter with the M8, just to see what happens. Reasonable (near) IR results. But I have two full-spectrum cameras, the most used being a modified Olympus EP2.
Just to add: The M9 without the IR Cut filter over the lens has some IR sensitivity, but much lower than the M8 used without the cut filter. The M9 shows more IR leakage than the M8 used with the IR cut filter over the lens.
Leica M8 WITHOUT the UV/IR filter over lens, C-Sonnar 50/1.5 wide-open, 1/8th second.
I've used a Wratten 88A filter with the M8, just to see what happens. Reasonable (near) IR results. But I have two full-spectrum cameras, the most used being a modified Olympus EP2.
Just to add: The M9 without the IR Cut filter over the lens has some IR sensitivity, but much lower than the M8 used without the cut filter. The M9 shows more IR leakage than the M8 used with the IR cut filter over the lens.
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