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project:karan-yiil [2026/01/22 05:27] – format wikaraiproject:karan-yiil [2026/03/24 22:28] (current) – external edit A User Not Logged in
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 ====== Karan-Yiil: 850nm Reflected IR Surveyer ====== ====== Karan-Yiil: 850nm Reflected IR Surveyer ======
  
-The **Karan-Yiil** is a dedicated near-infrared (NIR) observation unit. Unlike the UV project which requires specialized quartz glass to see reflected light, the IR project is about "removing" the limitations of human vision to see in total darkness.+The **Karan-Yiil** is a dedicated near-infrared (NIR) observation unit, "removing" the limitations of human vision to see in total darkness.
  
 When paired with the [[project:nighthawk|NightHawk]] (IR Flashlight), the Karan-Yiil can see through certain plastics, peer deep into foliage, and turn the pitch-black night into a high-contrast midday scene. Think of this as premium nightvision on the budget. When paired with the [[project:nighthawk|NightHawk]] (IR Flashlight), the Karan-Yiil can see through certain plastics, peer deep into foliage, and turn the pitch-black night into a high-contrast midday scene. Think of this as premium nightvision on the budget.
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 ^ Item ^ Part Number ^ Description ^ Unit Cost (CAD) ^ Note ^ ^ Item ^ Part Number ^ Description ^ Unit Cost (CAD) ^ Note ^
 | **The Sensor** | Variable | (See Table Above) | $15 – $70 | The "Eye" of the Raven. | | **The Sensor** | Variable | (See Table Above) | $15 – $70 | The "Eye" of the Raven. |
-| **The Illuminator** | [[project:nighthawk|NightHawk]] | 850nm IR Throw Flashlight | $25 | Provides "invisible" light for the sensor. | 
 | **The Stealth-Pass**| 850nm IR Filter | IR-Pass / Visible-Block Glass | $15 | Optional: Blocks visible light for "Pure IR." | | **The Stealth-Pass**| 850nm IR Filter | IR-Pass / Visible-Block Glass | $15 | Optional: Blocks visible light for "Pure IR." |
 | **The Glass** | 25mm C-Mount | Standard Lens | $35 | Only needed for HQ/C-Mount sensors. | | **The Glass** | 25mm C-Mount | Standard Lens | $35 | Only needed for HQ/C-Mount sensors. |
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 | **The Display** | 3.5" DPI LCD | Real-time Viewfinder | $30 | Optional if using phone as viewer. | | **The Display** | 3.5" DPI LCD | Real-time Viewfinder | $30 | Optional if using phone as viewer. |
  
-**Total Est. Cost per Unit: ~$107 – $197 CAD.** \\ +**Total Est. Cost per Unit: ~$82 – $172 CAD.** \\ 
 (Low end uses Arducam NoIR; High end uses RPi HQ + Lens.)\\ (Low end uses Arducam NoIR; High end uses RPi HQ + Lens.)\\
-(~$77 – $167 if using a Phone as the Viewfinder - No LCD needed.)\\ +(~$52 – $142 if using a Phone as the Viewfinder – No LCD needed.)\\ 
 +(~$30 – $120 if you already have a spare RPi Zero.) \\
 ===== The Raven's Field Guide: What to Look For ===== ===== The Raven's Field Guide: What to Look For =====
  
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 ===== Crow's Comments ===== ===== Crow's Comments =====
  
-  * **This spectrum is considered "Near-IR" (NIR) - conversely, "Far-IR" (FIR) is thermal energy as in a thermal camera or heat radiating off an object. +  * **The Spectrum:** This spectrum is considered "Near-IR" (NIR) – conversely, "Far-IR" (FIR) is thermal energy as in a thermal camera or heat radiating off an object. 
-  * **Daylight Usage:** The [[project:nighthawk|NightHawk]] is primarily for indoor or nocturnal use. During the day, the sun provides high ambient NIR levels, making an external flashlight unnecessary for most outdoor shots.+  * **Daylight Use:** The [[project:nighthawk|NightHawk]] is primarily for indoor or nocturnal use. During the day, the sun provides high ambient NIR levels, making an external flashlight less a requirement.
   * **The Stealth Effect:** To the human eye, the **NightHawk** looks like a faint, dim red glow (the "red drop" effect), but on the Karan-Yiil screen, it looks like a high-powered searchlight.   * **The Stealth Effect:** To the human eye, the **NightHawk** looks like a faint, dim red glow (the "red drop" effect), but on the Karan-Yiil screen, it looks like a high-powered searchlight.
   * **Focus Shifting:** IR light focuses at a different point than visible light. Many vintage lenses have a small "red dot" or "R" on the focus scale–use that for IR!   * **Focus Shifting:** IR light focuses at a different point than visible light. Many vintage lenses have a small "red dot" or "R" on the focus scale–use that for IR!
 +  * **Green vs Grey** - Traditional nightvision systems choose green due to high sensitivity of the eye there - it peaks at ~555nm! On a modern display, this is less necessary.
  
 Caw! Ready to see what the night is hiding? Caw! Ready to see what the night is hiding?
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