Imaging Modes
Sona and Marana provide an exceptional dynamic range on account of the combination of low noise floor and high signal handling provided by the large well depth capacity.
A dual amplifier architecture is utilised to enable both low noise, and maximum well depth to be used simultaneously. This delivers a very high linearity of >99.7% across this range allowing for quantitative analyses. When combined with the high frame rates and large sensor area this provides a lot of flexibility for how the camera may be used.
For dynamic images - Use 16-bit mode to provide the data range required to capture full range images. Frame rates will be lower than for 12-bit- however you can use Region of Interest (ROIs) to boost frame rates.
For the fastest frame rates - Use 12-bit mode for applications in which time resolution is the most critical parameter. 12-bit mode allows frame rates 2 times faster than 16-bit mode at the expense of a reduced dynamic range. ROIs can also be used to further increase frame rates
Sona and Marana-11 sCMOS Maximum Frame rates
| Max Frame Rate (fps) | Marana and Sona 4.2B-11 | Sona 2.0B-11 model | ||
|---|---|---|---|---|
| ROI Size (W x H) | 16-bit | 12-bit | 16-bit | 12-bit |
| 2048 x 2048 | 24 | 48 | - | - |
| 1608 x 1608 | 30 | 61 | - | - |
| 1400 x 1400 | 35 | 70 | 35 | 70 |
| 1200 x 1200 | 41 | 81 | 41 | 81 |
| 1024 x 1024 | 48 | 95 | 48 | 95 |
| 512 x 512 | 95 | 190 | - | - |
| 256 x 256 | 190 | 378 | - | - |
| 128 x 128 | 378 | 750 | - | - |
| 2048 x 8 | 5415 | 9747 | - | - |
| 1200 x 8 | 5415 | 9747 | 5415 | 9747 |
| 2048 x 2 | 16244 | 24367 | - | - |
| 2048 x 1 | 24367 | 24367 | - | - |
Another consideration is data storage. High frame rate, full frame images at 16-bit can quickly generate many gigabytes worth of data. Using 12-bit, smaller ROIs or frames rates can help to reduce the amount of image data produced.