# cam

* [ESP32](#esp32)
* [Sony](#sony)
* [DJI](#dji)
  * [Drone](#drone)

## ESP32

<https://github.com/espressif/esp32-camera/blob/master/README.md#supported-sensor>

| model  | max resolution | color type | output format                                                                                | Len Size |
| ------ | -------------- | ---------- | -------------------------------------------------------------------------------------------- | -------- |
| OV2640 | 1600 x 1200    | color      | <p>YUV(422/420)/YCbCr422<br>RGB565/555<br>8-bit compressed data<br>8/10-bit Raw RGB data</p> | 1/4"     |

## Sony

| Feature                    | IMX323                        | IMX335                           | IMX415                           | IMX678                                         |
| -------------------------- | ----------------------------- | -------------------------------- | -------------------------------- | ---------------------------------------------- |
| **Technology**             | Exmor (Older BSI)             | STARVIS                          | STARVIS (Stacked)                | STARVIS 2 (Stacked)                            |
| **Max. Resolution**        | Approx. 2.1MP (1080p/Full HD) | Approx. 5.1MP (5MP/2.5K)         | Approx. 8.4MP (4K/UHD)           | Approx. 8.4MP (4K/UHD)                         |
| **Sensor Size (Diagonal)** | Type $1/2.9"$                 | Type $1/2.8"$ ($6.52 \text{mm}$) | Type $1/2.8"$ ($6.43 \text{mm}$) | Type $1/1.8"$ (Larger)                         |
| **Pixel Size**             | $\sim 2.8 \mu \text{m}$       | $2.0 \mu \text{m}$               | $1.45 \mu \text{m}$              | $2.0 \mu \text{m}$ (Often larger than IMX415)  |
| **Dynamic Range (HDR)**    | Basic/Limited                 | DOL-HDR                          | DOL-HDR                          | Enhanced/Superior (DOL HDR, Clear HDR support) |

* **IMX678** uses **STARVIS 2**, the successor to STARVIS, which offers superior low-light performance, much higher dynamic range, and better motion clarity
* The **IMX415** is competent but is often overshadowed by the IMX335 in pure low-light sensitivity due to its smaller pixel pitch

## DJI

### Drone

| inch   | type | 视角  | 等效焦距  | 光圈       | 对焦点   | 变焦     | Model         |
| ------ | ---- | --- | ----- | -------- | ----- | ------ | ------------- |
| 1/0.75 | 哈苏   | 72° | 28mm  | f/2.0-11 | 2m+   | 1-2.5倍 | Mavic4P       |
| 1/1    | 广角   | 84° | 24mm  | f/1.8    | 0.5m+ | 1-2.9倍 | Mini5P/Air3S  |
| 1/1.3  | 中长焦  | 35° | 70mm  | f/2.8    | 3m+   | 3-9倍   | Air3S/Mavic4P |
| 1/1.5  | 长焦   | 15° | 168mm | f/2.8    | 3m+   | 6-24倍  | Mavic4P       |


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