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Old 4th October 2006   #1
mervingeronimo20
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Default IR Photograpy with Canon 400D

hi there

im a newbie at IR photography, and i want to explore more on this effect.. my current hardware is canon 400D 18~200mm F3.5-6 Sigma and the 18~55 kit lens, in which set up will i have better results? any tips or sugestions before i start. i havent both the filter any sugestions??


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Old 4th October 2006   #2
TrailsofLife
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Default Re: IR Photograpy with Canon 400D

Read this 2 stickies first:

How to take IR picutre
How to set white balance

18-55mm may have alot of hot spot problem. So Sigma is the only way to go.

Use a tripod, exposure for Canon camera is usually long. Try f5.6, 15-30secs at ISO 200.

For filter, Hoya R72 is pretty popular here. you may want to get it.
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Old 4th October 2006   #3
mervingeronimo20
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Default Re: IR Photograpy with Canon 400D

on ir photography lets say my composition and framing are ok, how about the time to take photo? is there a rule on how and what time to take photo? how about night photography will the ir effect still work??

sorry for this stupid question, just a newbie in this feild thks!


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Old 4th October 2006   #4
JoshSiao
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Default Re: IR Photograpy with Canon 400D

For Canon it is at least 10 secs minimum on a bright not sunny day at f/5.6 ISO 200. Night IR will still work but it will require exposures that are minutes long. ( haven't tried it but another CSer has http://forums.clubsnap.org/showthread.php?t=217612) But his is a modded cam. Canon really has put a good hot-mirror filter on their cameras. This hot-mirror filter will also cause some noisy IR pictures in conjunction to the exposure. Higher f/stops is recommended as the focus for IR is slightly off from normal focus so a higher f-stop will ensure a sharp picture. Try bright sunny days for starters though.
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Old 4th October 2006   #5
TrailsofLife
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Default Re: IR Photograpy with Canon 400D

Exposure wise its always unpredictable, because meter system in camera are meant for normal light, none are meant to measure IR.

IR is better in the day. Because of the sun. At night, only light available are from artificial lamps, so its not nice. And You loose the beauty of color from the artificial lights in the city.

The hot mirror dun cause the noise, its the higher ISO that cause the noise. I won't recommend higher fstop for unmodded cameras because it'll cause hotspot. Infact, go as wide as your lens allow not compromising the sharpness. Learnt to calculate the distance, most of the time, when shooting landscape, the focal point is way beyond infinity, so wide fstop won't cause misfocussing or out of focus image. unless you are should a subject like 2 meters away from you, then you turn the focus ring back abit because IR wavelength is shorter than visible light.
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Last edited by TrailsofLife; 4th October 2006 at 08:46 PM.
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