The Olympus µ-mini IR-Diva is a
IR-modded version of the original Olympus µ-mini. The filter glass in
front of the sensor has been replaced by a piece of normal glass.
Focus works very good but the exposure metering failures. Normally you will need from -1.3 to -2 EV exposure compensation, it depends somewhat on the white balance and the daytime. In some circumstances you will have to use spot metering for preventing overexposure.
The exposure time with IR-Filter is very short, you can do handheld work even in the evening hours. Shooting without tripod gives you a lot of flexibility. Also smearing caused by wind is no problem anymore.
µ-mini IR-Diva without filter (WB:
with RG715 (WB tungsten), -2 EV
with RG715 (WB Fluorescent), -2 EV
comment: So far, so
nice. Doing the following post precession we get this picture:
Looks not that bad. For comparison an IR picture from the
unmodified µ-mini taken last year:
In terms of colour the unmodified µ-mini is more vibrant with a weaker wood effect. So the sensitivity boost of the modification takes it toll.
The second is from the left down
The third from the right border of
It's better than the unmodified version.
The µ-mini seems to be a very good base for IR-modding. The lens isn't fast and has little zoom (35 - 70 mm). On the other side it consists of only 5 elements in 3 groups, so you have only 6 surfaces and therefore little scattered light and a good contrast. The good control of chromatic aberrations in visible light is a hint for good sharpness beyond the visible spectrum.
You should be able to print a nice little poster from that shot.
For some own tries I've
provided a original IR file out of the camera:
[go back to sensitivity list] May 2008