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+ | ====== Light Bulb ====== | ||
+ | ^ Name ^ light meter (ISO 100, T 125) ^^^ | ||
+ | | ikea 9W 5000K bulb | inner: F5, EV12 | softbox: F1.8, EV9 | 1m: F0.8, EV6.5 | | ||
+ | | set photo 135W 5500K bulb | inner: F6.3, EV12.8 | softbox: F3.2, EV10.7 | 1m: F1.1, EV7.3 | | ||
+ | |||
+ | ====== Color Temperature and Lumens ====== | ||
+ | |||
+ | * ref: https:// | ||
+ | |||
+ | Quick Notes: | ||
+ | * 5000K, like sun light look (cool) | ||
+ | * 2700k, like flame look (warm) | ||
+ | * **Warm Color Temperatures** (2700K to 3500K): | ||
+ | * people more like these color, often seen in home and hotel or restaurant | ||
+ | * **Cool Color Temperatures** (4000K to 4500K): | ||
+ | * often as task lighting in offices, kitchen under-cabinet lighting or craft rooms | ||
+ | * human see higher color temperatures to be " | ||
+ | * human see higher color temperatures to be " | ||
+ | * human see higher color temperatures to be making " | ||
+ | * **Full Spectrum Color Temperatures - Daylight = full sepctrum** (5000K to 6500K): often seen in museums, jewelry stores, showcase windows, and hospitals | ||
+ | |||
+ | **Object Color Distort by Color Temperature** | ||
+ | * color temperature + light brightness + rendering (Color Rendering Index - CRI) can cause human see/precept color " | ||
+ | * ref: https:// | ||
+ | * Fight Between " | ||
+ | ====== LED Lights ====== | ||
+ | |||
+ | * E27: means standard Edison screw bulb, 27mm diameter (Thumb size), [also used in cheap softbox lights] | ||
+ | * E14 (SES): small Edison screw mount, 14mm diameter (pinky size) | ||
+ | * E17 (IES): intermediate, | ||
+ | * E12 (CES): Candelabra, like for decoration | ||
+ | * E10 (MES): miniature, like torch buibs | ||
+ | |||
+ | * Illuminance (照度): | ||
+ | * Luminous energy per unit time | ||
+ | * If you ILLUMINATE an object and measured the amount of light being projected towards it by the light, that is ILLUMINANCE | ||
+ | * lux (= lumen per square metre) | ||
+ | * Luminous flux, luminous power (光通量): | ||
+ | * Luminous flux incident on a surface | ||
+ | * LUMINANCE is the amount of light reflected off the surface being ILLUMINATED! | ||
+ | * lumens = Luminous flux | ||
+ | * ref: | ||
+ | * [[https:// | ||
+ | |||
+ | |||
+ | ^ Light ^ Temperature | accuracy ^ watte | lumens | vari ^ Modifier ^ Price | Exposure | | ||
+ | | Godox SL60W | 5600k+200K | CRI93 | 60W | 4500 | 10-100% | Bowens mount | 125sgd | remote | (60cm, direct) EV10.5 (1/ | ||
+ | | Aputure 120D ii | 5500k | CRI96 | 180W | 14300 | | | 1000sgd | remote | | ||
+ | | Godox SL200W | 5600k+200K | | 200W | 20000 | | | 500sgd | | ||
+ | | TRADFRI LED E27 980lm | 2.2-2.7,4k | | | 980 | ~ | ||
+ | | TRADFRI LED E27 1000lm | 2.7k? | | | 1000 | ~ | | 30sgd | remote | | | ||
+ | | RYET LED E27 1000lm | 5k | | 9W | 1000 | ||
+ | | LEDARE LED E27 1000lm | 2.7k-warmer | CRI90 | 11W | 1000 | ~ | | 5sgd | | ||
+ | | LEDARE LED E27 1000lm | 2.7k-warmer | | | 1000 | ~ | | 8sgd | | ||
+ | | LEDARE LED E27 1600lm | 2.7k-warmer | | 16W | 1600 | ~ | | 10sgd | | ||
+ | |||
+ | * Godox SL60W review | ||
+ | * https:// | ||
+ | * https:// | ||
+ | * Aputure 120D review: | ||
+ | * https:// | ||
+ | * http:// |