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02/12/2004 10:04:39 AM · #1 |
I spotted a deal on 2filter.com for my 717 and infrared photography. They offer 3 filters: the RM72, ND4 and ND8. Does anyone see a use for the Neutral density filters in Infrared photography, or will the RM72 do all the job for me?
It comes down to an extra 34$ for both ND's and a case. Is it worth it? |
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02/12/2004 10:10:06 AM · #2 |
just posted this site on another thread, this guy has some good info on both infrared and neutral density filters. Might be helpful.
infrared digital
Message edited by author 2004-02-12 10:10:24.
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02/12/2004 11:32:45 AM · #3 |
| Thanks for that link Brooklyn, lotsa useful info there. |
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02/12/2004 11:46:16 AM · #4 |
The ND filters will allow you to shoot IR in the nigh shot mode with the 717. If you don't plan to use that mode, you don't need the ND filters.
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02/12/2004 01:04:55 PM · #5 |
Doesn't the IR filter do that(allow you to shoot in the night shot mode)in the first place?
I thought that the IR filter filters all light below 750nm but the ND filters all the light equally. If that's true, then I don't see a point in using the ND's for infrared, unless you're looking for something in between IR and regular photography.
Am I right?
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02/12/2004 01:09:40 PM · #6 |
Originally posted by labuda:
Doesn't the IR filter do that(allow you to shoot in the night shot mode)in the first place?
I thought that the IR filter filters all light below 750nm but the ND filters all the light equally. If that's true, then I don't see a point in using the ND's for infrared, unless you're looking for something in between IR and regular photography.
Am I right? |
If you are shooting in the daylight with any sun, your IR filter with night shot mode won't expose properly without the ND filters. You will severly overexpose everything. Also you dont' have much exposure control when in night shot mode. I did all my IR stuff with my 707 in manual exposure mode, not using night shot or ND filters.
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02/12/2004 01:20:49 PM · #7 |
| Let me see if I got this right, even when using only the IR part of the spectrum, too much of it equals over exposure. Is that an accurate way to think about it? |
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02/12/2004 01:37:03 PM · #8 |
Originally posted by MinAlex:
Let me see if I got this right, even when using only the IR part of the spectrum, too much of it equals over exposure. Is that an accurate way to think about it? |
Yes.
The Sony Nightshot system limits the shutter speed to 1/60 second or longer, to avoid people using it in daylight (since there will be too much light at that shutter speed). The reason for the limitation is that some low-lifes were/are using it at the beach; it seems that many fabrics become pretty much transparent in IR when wet...
The reason for the IR/ND combination, then, is to get around this limitation. The fact that they are being marketed together scares me, I don't think their target market is folks interested in the artistic aspects of IR photography.
So the moral of the story is, if you see someone with a Sony digicam and a dark filter at a beach, keep your clotes on. And notify the police.
The other moral is, be careful you're not mistaken for one of them!
Message edited by author 2004-02-12 13:37:31.
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02/12/2004 01:43:02 PM · #9 |
| Well, I was planning on getting a new bathing suit this summer anyway as my tummy keeps getting bigger. Now I'll just look for one that is IR light-proof, LOL. |
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02/12/2004 02:08:48 PM · #10 |
Originally posted by kirbic:
So the moral of the story is, if you see someone with a Sony digicam and a dark filter at a beach, keep your clotes on. And notify the police.
The other moral is, be careful you're not mistaken for one of them! |
My polariser is also dark ...... don't hit me ..... LOL
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