K10 with 950nm IR Filter.. can't work?


epileatheral

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I just bought a 950nm IR Filter to try out on my K10. I put it on and tried some shooting. But no matter how long I set my shutter, I get nothing but darkness. My apperture is 6.3 on my Kit lens, and ISO is 200. I expose it for almost 5 mins.

Is there anything wrong? Hope someone can enlighten me.
 

night86mare

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when did you shoot? daytime or nighttime

950nm cuts out a lot of light, couple that to the fact that k10d before mod is very insensitive to IR, 5 minutes is nothing.
 

epileatheral

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I shot in the evening.. it was rather dark. So, I have to shoot in a SUPER BRIGHT day to get something? Wow! 5 mins is nothing? OMG... I probably have to crank up my ISO then.
 

night86mare

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you need sunlight to get IR.. evening IR is next to impossible when your camera is not sensitive la.

i remember playing with some of the pentaxians' k10d for IR, something like iso100 or something... with f/4 and 2 minutes? in bright sunlight. that's with 720nm too (hoya r72)... i have never used a 950nm before, but you will expect to get monochrome images.. and i think you're in for a long wait.

can ask istDS or creampuff... i think it was one of theirs. :)
 

kuanwk

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you need sunlight to get IR.. evening IR is next to impossible when your camera is not sensitive la.

i remember playing with some of the pentaxians' k10d for IR, something like iso100 or something... with f/4 and 2 minutes? in bright sunlight. that's with 720nm too (hoya r72)... i have never used a 950nm before, but you will expect to get monochrome images.. and i think you're in for a long wait.

can ask istDS or creampuff... i think it was one of theirs. :)
one of the tests i learnt was to aim the remote of ur tv at the cam and press e buttons a few times..
if it can register means got hope.
 

epileatheral

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AH! okay! I try that now!
 

epileatheral

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Ah.. I do get some registers of red dots!
 

kuanwk

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Ah.. I do get some registers of red dots!
so now u juz have to pick a bright sunny day (noontime is gd) and work out how late u can stay out b4 u have to pack up..
oh, remember sun block! :bsmilie:
 

night86mare

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one of the tests i learnt was to aim the remote of ur tv at the cam and press e buttons a few times..
if it can register means got hope.
k10d definitely can take ir

but is VERY LONG EXPOSURE
 

epileatheral

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Yeah.. VERY VERY long exposure. Any idea how long is that long? 15mins? Or even more? Will it fry the sensor?
 

night86mare

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Yeah.. VERY VERY long exposure. Any idea how long is that long? 15mins? Or even more? Will it fry the sensor?
i won't know.

why don't you get a weaker ir filter to try, it should give ok results.

definitely not 15 minutes la. just wait for better light. like right now, will not be good.
 

epileatheral

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Not 15 mins means.. even more or less? Yeah.. guess I'll have to get a much weaker one.