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====Terminology====

====Terminology====

* FPS - Frames per second, also known as frame rate; a measure of how quickly the camera captures images. Standard frame rates are between 24 and 60FPS. The Cronos is capable of filming at up to 38,500FPS.  

*FPS - Frames per second, also known as frame rate; a measure of how quickly the camera captures images. Standard frame rates are between 24 and 60FPS. The Cronos is capable of filming at up to 38,500FPS.

* Exposure - How long a frame of video is actually gathering light, given in seconds. This is called Shutter Speed on most consumer cameras.

*Exposure - How long a frame of video is actually gathering light, given in seconds. This is called Shutter Speed on most consumer cameras.

* Analog Gain - Called ISO in consumer cameras, digitally controls the brightness of the image. More gain means a brighter image, but also more noise (manifests as grain, especially noticeable in dark areas of the image). For the best image quality, use a low gain and compensate by increasing the amount of light where you’re filming or open the aperture if the image is too dark.

*Analog Gain - Called ISO in consumer cameras, digitally controls the brightness of the image. More gain means a brighter image, but also more noise (manifests as grain, especially noticeable in dark areas of the image). For the best image quality, use a low gain and compensate by increasing the amount of light where you’re filming or open the aperture if the image is too dark.

* Aperture - Measures the diameter of the lens's iris, given in F-stops (F1.4, F2.8, F4, etc.). The lower the number, the larger the diameter of the iris (called a wider or more open aperture) and the more light that hits the sensor. A wider aperture also decreases the depth of field (how much is in focus at a time), making the background blurry. This is bad if you are trying to film a lot of things far away from each other, but good if you need lots of light and are only filming one thing.

*Aperture - Measures the diameter of the lens's iris, given in F-stops (F1.4, F2.8, F4, etc.). The lower the number, the larger the diameter of the iris (called a wider or more open aperture) and the more light that hits the sensor. A wider aperture also decreases the depth of field (how much is in focus at a time), making the background blurry. This is bad if you are trying to film a lot of things far away from each other, but good if you need lots of light and are only filming one thing.

* H.264 - A common video encoding standard used commonly in online video. Generally you want to pick this one.

*H.264 - A common video encoding standard used commonly in online video. Generally you want to pick this one.

* Focus Peaking - A feature that makes it easier to see what is in focus. Highlights edges that are in focus in a color (usually red).

*Focus Peaking - A feature that makes it easier to see what is in focus. Highlights edges that are in focus in a color (usually red).

[[File:Pasted image2.jpg|none|thumb|400x400px]]

[[File:Pasted image2.jpg|none|thumb|400x400px]]

* White Balance - Controls the color temperature of light the camera is filming, measured in degrees kelvin. (Seriously, color temperature was originally defined by the color of light a bar of lead glows with at a particular temperature) Incandescent lights are around 3200K, outdoor daylight is around 5900K, LED lighting is around 5600K. Generally just adjust this by eye. If the image appears too blue, increase the color temperature. If the image appears too orange, decrease the color temperature. If adjusted correctly, white objects in the image should appear, well… white.

*White Balance - Controls the color temperature of light the camera is filming, measured in degrees kelvin. (Seriously, color temperature was originally defined by the color of light a bar of lead glows with at a particular temperature) Incandescent lights are around 3200K, outdoor daylight is around 5900K, LED lighting is around 5600K. Generally just adjust this by eye. If the image appears too blue, increase the color temperature. If the image appears too orange, decrease the color temperature. If adjusted correctly, white objects in the image should appear, well… white.

[[File:Color Temp.jpg|none|thumb|400x400px]]

[[File:Color Temp.jpg|none|thumb|400x400px]]

* Trigger - Tells the camera when to stop recording. High speed cameras are always recording, and only stop and save video when stopped.

*Trigger - Tells the camera when to stop recording. High speed cameras are always recording, and only stop and save video when stopped.

* Ring buffer - The camera records frames in a “ring”, with each frame filling a new spot on the ring. When the ring is full, the next frame overwrites the first frame in the buffer. Each subsequent frame is also overwritten. This means you can start recording whenever you want, and the camera will only save the buffer when you press the trigger. By default, when you press the trigger it immediately stops recording. By going to the Trigger Delay menu, you can change it so the camera continues to record after you press the trigger (this does not work for the red record button).

*Ring buffer - The camera records frames in a “ring”, with each frame filling a new spot on the ring. When the ring is full, the next frame overwrites the first frame in the buffer. Each subsequent frame is also overwritten. This means you can start recording whenever you want, and the camera will only save the buffer when you press the trigger. By default, when you press the trigger it immediately stops recording. By going to the Trigger Delay menu, you can change it so the camera continues to record after you press the trigger (this does not work for the red record button).

[[File:Ring buffer.jpg|none|thumb|400x400px]]

[[File:Ring buffer.jpg|none|thumb|400x400px]]

==Safety==

==Safety==

There is almost nothing you could do that would result in injury from using the high speed camera. Obviously things you could be filming (e.g. explosions) could be dangerous, and you must use common sense in what you decide to place in front of the camera. In most every situation, the camera is at risk of damage more than you are. Always observe the following precautionary guidelines when using the camera.

There is almost nothing you could do that would result in injury from using the high speed camera. However, things you might be filming (fast moving objects, explosions, etc.) could be dangerous. You must exercise common sense in what you decide to place in front of the camera. In most every situation, the camera is at greater risk of damage than you are. Always observe the following precautionary guidelines when using the camera.

*The camera should always be securely mounted or held so it is not at risk of falling/being knocked over

*The camera should always be securely mounted or held so it is not at risk of falling/being knocked over

*Don’t put any stress on the lens, the mount is fragile

*Don’t put any stress on the lens, the mount is fragile

*If the lens is ever disconnected, the sensor cap must be immediately attached

*If the lens is ever disconnected, the sensor cap must be immediately attached

*When not being used, the camera should be stored in its pelican case with latches secured. Latches should always be secured, even if you’re coming right back!

*When not being used, the camera should be stored in its pelican case with latches secured. The case should '''always''' be latched when you step away to prevent the possibility of the camera falling out.

==Certification==

==Certification==

!Solution

!Solution

|-

|-

| rowspan="3" | Camera won’t turn on

| rowspan="3" |Camera won’t turn on

| No power || Insert battery or connect to mains power using power adapter.

|No power||Insert battery or connect to mains power using power adapter.

|-

|-

| Crash || Remove battery and AC adapter for 10 seconds, then reconnect and power on.

|Crash||Remove battery and AC adapter for 10 seconds, then reconnect and power on.

|-

|-

| AC Adapter voltage wrong || Ensure that AC adapter is providing between 17 and 20V DC, positive tip.

|AC Adapter voltage wrong||Ensure that AC adapter is providing between 17 and 20V DC, positive tip.

|-  

|-  

| rowspan="2" | Battery won't charge

| rowspan="2" |Battery won't charge

| Battery inserted after AC connected || Unplug AC adapter from camera then replug.

|Battery inserted after AC connected||Unplug AC adapter from camera then replug.

|-

|-

| AC Adapter voltage wrong || Ensure that AC adapter is providing between 17 and 20V DC, positive tip.

|AC Adapter voltage wrong||Ensure that AC adapter is providing between 17 and 20V DC, positive tip.

|-

|-

| Battery indicator drops very fast || Low quality or failing battery || Replace battery.

|Battery indicator drops very fast||Low quality or failing battery||Replace battery.

|-

|-

| rowspan="2" | Power status indicator flashes red/green continuously

| rowspan="2" |Power status indicator flashes red/green continuously

| Power controller in recovery mode || Turn camera off, then remove the battery and disconnect AC adapter for 10 seconds. When reconnecting power or inserting battery, ensure power button is not pressed until after the LED flashing stops.

|Power controller in recovery mode||Turn camera off, then remove the battery and disconnect AC adapter for 10 seconds. When reconnecting power or inserting battery, ensure power button is not pressed until after the LED flashing stops.

|-

|-

| Power controller firmware corrupt || If the above does not fix the problem, contact Kron Technologies for assistance. A power controller recovery update may need to be applied.

|Power controller firmware corrupt||If the above does not fix the problem, contact Kron Technologies for assistance. A power controller recovery update may need to be applied.

|-

|-

| Horizontal or vertical lines show up in video || Black cal not done after changing shutter speed (especially at resolutions below 1280 pixels horizontal) || Perform black cal after every shutter speed or resolution change.

|Horizontal or vertical lines show up in video||Black cal not done after changing shutter speed (especially at resolutions below 1280 pixels horizontal)||Perform black cal after every shutter speed or resolution change.

|-

|-

| Extremely blurry image, can't get close to proper focus. Except possibly when lens zoomed in || Incorrect lens adapter installed || Check if lens is CS or C mount to determine proper adapter to use.

|Extremely blurry image, can't get close to proper focus. Except possibly when lens zoomed in||Incorrect lens adapter installed||Check if lens is CS or C mount to determine proper adapter to use.

|-

|-

| rowspan="2" | Focus slightly wrong, proper focus out of range

| rowspan="2" |Focus slightly wrong, proper focus out of range

| Backfocus misadjusted || Readjust backfocus, see Backfocus Adjustment section in User Manual.

|Backfocus misadjusted||Readjust backfocus, see Backfocus Adjustment section in User Manual.

|-

|-

| Lens limitation || The Computar 12.5-75mm lens as well as some others are slightly soft at fully wide aperture. Close aperture slightly and retry. Try f/2 or smaller.

|Lens limitation||The Computar 12.5-75mm lens as well as some others are slightly soft at fully wide aperture. Close aperture slightly and retry. Try f/2 or smaller.

|-

|-

| rowspan="2" | Lens doesn't maintain consistent focus while zooming

| rowspan="2" |Lens doesn't maintain consistent focus while zooming

| Backfocus misadjusted || Readjust backfocus, see Backfocus Adjustment section in User Manual.

|Backfocus misadjusted||Readjust backfocus, see Backfocus Adjustment section in User Manual.

|-

|-

| Lens is not parfocal || Some lenses, especially lower end lenses such as the 6-60mm and 2.8- 12mm lenses, do not maintain focus during zoom, Focus needs to be adjusted after zooming.

|Lens is not parfocal||Some lenses, especially lower end lenses such as the 6-60mm and 2.8- 12mm lenses, do not maintain focus during zoom, Focus needs to be adjusted after zooming.

|-

|-

| Black ring around image || Lens too small for sensor || Some lenses (such as the 6-60mm and 2.8-12mm lenses) don't cover the full image sensor. The black ring around the outside is called Vignetting. Change to a different lens to eliminate.

|Black ring around image||Lens too small for sensor||Some lenses (such as the 6-60mm and 2.8-12mm lenses) don't cover the full image sensor. The black ring around the outside is called Vignetting. Change to a different lens to eliminate.

|-

|-

| Negative ghost image visible over normal image || Black cal done without lens cap on or with aperture open || Perform black cal again by closing aperture fully, or covering lens.  

|Negative ghost image visible over normal image||Black cal done without lens cap on or with aperture open||Perform black cal again by closing aperture fully, or covering lens.

|}

|}