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A quick search for "IR cut security camera" on Amazon returns hundreds of results. Some cost as little as $20 [1], so not uncommon at all from what I can tell.

A quick search for "IR cut security camera" on Amazon returns hundreds of results. Some cost as little as $20 [1], so not uncommon at all from what I can tell. > Even for those that do, IR filters are rarely perfect, so a bright enough IR light would still do the trick. Do you have a source for this? I've never tested it, so I can't say, but I would want to want to see some proof first. [1] https://www.amazon.com/Tonton-Outdoor-Infrared-Suitable-Security/dp/B07MH4PGZL/ https://www.amazon.com/Tonton-Outdoor-Infrared-Suitable-Secu...

dale_glass 4y ago
> A quick search for "IR cut security camera" on Amazon returns hundreds of results. Some cost as little as $20 [1], so not uncommon at all from what I can tell. https://www.amazon.com/Tonton-Outdoor-Infrared-Suitable-Security/dp/B07MH4PGZL/ https://www.amazon.com/Tonton-Outdoor-Infrared-Suitable-Secu... That's the very opposite. That's a camera that uses IR illumination to record at night. That's what all those LEDs around the lens are for. And due to this it lacks any IR filtering. This particular camera is more IR sensitive than most cameras like DSLRs or cell phones. > Do you have a source for this? I've never tested it, so I can't say, but I would want to want to see some proof first. You can test it by pointing a remote at a camera. Normal cameras like cell phones and DSLRs have IR filters. They still can see the blinking LED on an IR remote, because the filter isn't perfect.
- freetime2 4y ago
  > That's the very opposite. That's a camera that uses IR illumination to record at night. That's what all those LEDs around the lens are for. And due to this it lacks any IR filtering. This particular camera is more IR sensitive than most cameras like DSLRs or cell phones. No, the camera also has IR cut - it lists the feature right in the product title, and the customer-provided samples in the reviews clearly have an IR cut filter applied (you can tell by the "natural" colors in the daytime photos). Is has two modes of operation, daytime mode and nighttime mode. During daytime mode it employs an IR cut filter, and during nighttime mode it removes the filter and adds additional IR lighting for "night vision". For more info on how IR-cut works in security cameras, see this support article from Annke (another seller of cheap security cameras on Amazon): https://help.annke.com/hc/en-us/articles/4403980153497-What-Is-IR-Cut-Infrared-cut-On-Security-Cameras-and-How-it-Works- https://help.annke.com/hc/en-us/articles/4403980153497-What-... > They still can see the blinking LED on an IR remote, because the filter isn't perfect. Being able to see a faint blinking LED from a remote is not sufficient to prove that the effect is strong enough to completely obscure a person's face when an IR cut filter is applied, in my opinion.
  - dale_glass 4y ago
    > During daytime mode it employs an IR cut filter, and during nighttime mode it removes the filter and adds additional IR lighting for "night vision". Ah, I see > Being able to see a faint blinking LED from a remote is not sufficient to prove that the effect is strong enough to completely obscure a person's face when an IR cut filter is applied, in my opinion. It's just a matter of intensity. An IR filter is going to block some percentage. If it blocks 90%, you just need a 10X stronger light. At some point this gets impractical of course, but you can buy some really powerful LEDs. Most security cameras are cheap and the IR filter is there to improve the image in the daytime, not to counteract intentional attacks.

dale_glass 4y ago

> A quick search for "IR cut security camera" on Amazon returns hundreds of results. Some cost as little as $20 [1], so not uncommon at all from what I can tell. https://www.amazon.com/Tonton-Outdoor-Infrared-Suitable-Security/dp/B07MH4PGZL/ https://www.amazon.com/Tonton-Outdoor-Infrared-Suitable-Secu... That's the very opposite. That's a camera that uses IR illumination to record at night. That's what all those LEDs around the lens are for. And due to this it lacks any IR filtering. This particular camera is more IR sensitive than most cameras like DSLRs or cell phones. > Do you have a source for this? I've never tested it, so I can't say, but I would want to want to see some proof first. You can test it by pointing a remote at a camera. Normal cameras like cell phones and DSLRs have IR filters. They still can see the blinking LED on an IR remote, because the filter isn't perfect.

freetime2 4y ago
> That's the very opposite. That's a camera that uses IR illumination to record at night. That's what all those LEDs around the lens are for. And due to this it lacks any IR filtering. This particular camera is more IR sensitive than most cameras like DSLRs or cell phones. No, the camera also has IR cut - it lists the feature right in the product title, and the customer-provided samples in the reviews clearly have an IR cut filter applied (you can tell by the "natural" colors in the daytime photos). Is has two modes of operation, daytime mode and nighttime mode. During daytime mode it employs an IR cut filter, and during nighttime mode it removes the filter and adds additional IR lighting for "night vision". For more info on how IR-cut works in security cameras, see this support article from Annke (another seller of cheap security cameras on Amazon): https://help.annke.com/hc/en-us/articles/4403980153497-What-Is-IR-Cut-Infrared-cut-On-Security-Cameras-and-How-it-Works- https://help.annke.com/hc/en-us/articles/4403980153497-What-... > They still can see the blinking LED on an IR remote, because the filter isn't perfect. Being able to see a faint blinking LED from a remote is not sufficient to prove that the effect is strong enough to completely obscure a person's face when an IR cut filter is applied, in my opinion.
- dale_glass 4y ago
  > During daytime mode it employs an IR cut filter, and during nighttime mode it removes the filter and adds additional IR lighting for "night vision". Ah, I see > Being able to see a faint blinking LED from a remote is not sufficient to prove that the effect is strong enough to completely obscure a person's face when an IR cut filter is applied, in my opinion. It's just a matter of intensity. An IR filter is going to block some percentage. If it blocks 90%, you just need a 10X stronger light. At some point this gets impractical of course, but you can buy some really powerful LEDs. Most security cameras are cheap and the IR filter is there to improve the image in the daytime, not to counteract intentional attacks.