Hi Levente The MX is almost ideal for infra red shooting. I prefer the real thing: Kodak Highspeed Infrared. This film has to be stored below 13 Celcius. In winter time this is fulfilled by storing the camera + film in my garage (with heating off) or in my car. In summertime I keep it in the fridge. The MX, being a mechanical camera, is said to operate down to 20 degrees below zero, so I keep the camera loaded with film in the fridge and take it out in a coolbox for shooting and put it back in the fridge after shooting. In this way I sometimes take a few months to finish a film. I think the number 25 filter is okay, a real black fiter is not needed in my opinion AND VERY IMPRACTICAL FOR FOCUSSING. I use a normal red filter so I can focus with the filter on the lens. I use TTL metering with the filter on the lens and ISO setting at 250 ASA. I bracket 3 frames per picture, one shot according the meter indication and one stop more and one stop less. If, based on experience, I expect that there is more than normal IR I shift the hole thing by one stop. If I think that I am making the nicest picture ever: I bracket 5 frames to be sure! It is important to use allways the same camera to have always the same behaviour of the light meter with the red filter. It is good to estimate the amount of infrared depending on the type of weather and the time and the time of day. Very late and very early in the day I always estimate more infrared relative to the measured light value. the same for very cloudy days.
I hope this is of help to you. Best regards, Jos from Holland - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
