From 73b7e471d141a40a2776731e1672ee10b5e9fed5 Mon Sep 17 00:00:00 2001 From: Natalie Ho Date: Mon, 25 Nov 2024 16:11:12 -0500 Subject: [PATCH 1/4] updates to readability and correctness of filter removal procedure --- .../asciidoc/accessories/camera/filters.adoc | 34 ++++++++----------- 1 file changed, 14 insertions(+), 20 deletions(-) diff --git a/documentation/asciidoc/accessories/camera/filters.adoc b/documentation/asciidoc/accessories/camera/filters.adoc index 676532f8f..483215008 100644 --- a/documentation/asciidoc/accessories/camera/filters.adoc +++ b/documentation/asciidoc/accessories/camera/filters.adoc @@ -30,47 +30,41 @@ The HQ and GS Cameras use a Hoya CM500 infrared filter. Its transmission charact image::images/hoyacm500.png[CM500 Transmission Graph,width="65%"] -== Filter Removal +== IR-Cut Filter -NOTE: This procedure applies to both the HQ and GS cameras. +Both the High Quality Camera and Global Shutter Camera contain an IR-Cut filter, which is used to reduce the camera's sensitivity to infrared light. This ensures that outdoor photos look more natural. However, some nature photography can be enhanced with the removal of this filter; the colours of sky, plants, and water can be affected by its removal. The camera can also be used without the filter for night vision in a location that is illuminated with infrared light. -WARNING: *This procedure cannot be reversed:* the adhesive that attaches the filter will not survive being lifted and replaced, and while the IR filter is about 1.1mm thick, it may crack when it is removed. *Removing it will void the warranty on the product*. Nevertheless, removing the filter will be desirable to some users. - -image:images/FILTER_ON_small.jpg[width="65%"] +=== Filter Removal -Both the High Quality Camera and Global Shutter Camera contain an IR filter, which is used to reduce the camera's sensitivity to infrared light. This ensures that outdoor photos look more natural. However, some nature photography can be enhanced with the removal of this filter; the colours of sky, plants, and water can be affected by its removal. The camera can also be used without the filter for night vision in a location that is illuminated with infrared light. +The filter removal procedure applies to both the HQ and GS cameras. The HQ camera is shown in the demonstration below. WARNING: Before proceeding read through all of the steps and decide whether you are willing to void your warranty. *Do not proceed* unless you are sure that you are willing to void your warranty. -To remove the filter: +WARNING: *This procedure cannot be reversed:* the adhesive that attaches the filter will not survive being lifted and replaced, and while the IR filter is about 1.1mm thick, it may crack when it is removed. *Removing it will void the warranty on the product*. Nevertheless, removing the filter will be desirable to some users. -* Work in a clean and dust-free environment, as the sensor will be exposed to the air. +image:images/FILTER_ON_small.jpg[width="65%"] -* Unscrew the two 1.5 mm hex lock keys on the underside of the main circuit board. Be careful not to let the washers roll away. There is a gasket of slightly sticky material between the housing and PCB which will require some force to separate. +Work in a clean and dust-free environment, as the sensor will be exposed to the air. Unscrew the two 1.5 mm hex lock keys on the underside of the main circuit board. Be careful not to let the washers roll away. image:images/SCREW_REMOVED_small.jpg[width="65%"] -* Lift up the board and place it down on a very clean surface. Make sure the sensor does not touch the surface. +There is a gasket of slightly sticky material between the housing and PCB which will require some force to separate. You may try some ways to weaken the adhesive, such as a little isopropyl alcohol and/or heat (~20-30 C). + +Once the adhesive is loose, lift up the board and place it down on a very clean surface. Make sure the sensor does not touch the surface. image:images/FLATLAY_small.jpg[width="65%"] -* You may try some ways to weaken the adhesive, such as a little isopropyl alcohol and/or heat (~20-30 C). +Turn the lens mount around so that it is "looking" upwards and place it on a table. image:images/SOLVENT_small.jpg[width="65%"] -* Turn the lens mount around so that it is "looking" upwards and place it on a table. +To minimise the risk of breaking the filter, use a pen top or similar soft plastic item to push down on the filter only at the very edges where the glass attaches to the aluminium. The glue will break and the filter will detach from the lens mount. -* Using a pen top or similar soft plastic item, push down on the filter only at the very edges where the glass attaches to the aluminium - to minimise the risk of breaking the filter. The glue will break and the filter will detach from the lens mount. +Given that changing lenses will expose the sensor, at this point you could affix a clear filter (for example, OHP plastic) to minimize the chance of dust entering the sensor cavity. image:images/REMOVE_FILTER_small.jpg[width="65%"] -* Given that changing lenses will expose the sensor, at this point you could affix a clear filter (for example, OHP plastic) to minimize the chance of dust entering the sensor cavity. - -* Replace the main housing over the circuit board. Be sure to realign the housing with the gasket, which remains on the circuit board. - -* The nylon washer prevents damage to the circuit board; apply this washer first. Next, fit the steel washer, which prevents damage to the nylon washer. - -* Screw down the two hex lock keys. As long as the washers have been fitted in the correct order, they do not need to be screwed very tightly. +Realign the housing with the gasket, which remains on the circuit board. Replace the main housing over the circuit board and secure it in place. Apply the nylon washer first to prevent damage to the circuit board. Next, fit the steel washer, which prevents damage to the nylon washer. Screw down the two hex lock keys. As long as the washers have been fitted in the correct order, they do not need to be screwed very tightly. image:images/FILTER_OFF_small.jpg[width="65%"] From f51dd8e9a1395af5985dcd8b7fed1d7393bfad5a Mon Sep 17 00:00:00 2001 From: Natalie Ho Date: Mon, 25 Nov 2024 16:21:47 -0500 Subject: [PATCH 2/4] update link to IR filters on camera page --- .../asciidoc/accessories/camera/camera_hardware.adoc | 2 +- documentation/asciidoc/accessories/camera/filters.adoc | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/documentation/asciidoc/accessories/camera/camera_hardware.adoc b/documentation/asciidoc/accessories/camera/camera_hardware.adoc index 5ec22d36d..6470e0fb7 100644 --- a/documentation/asciidoc/accessories/camera/camera_hardware.adoc +++ b/documentation/asciidoc/accessories/camera/camera_hardware.adoc @@ -20,7 +20,7 @@ The Raspberry Pi AI Camera uses the Sony IMX500 imaging sensor to provide low-la image::images/ai-camera-hero.png[The Raspberry Pi AI Camera] -Finally, there is the Global Shutter camera, which was http://raspberrypi.com/news/new-raspberry-pi-global-shutter-camera[released in 2023]. There is no infrared version of the GS Camera, however the IR Filter can be removed if required. +Finally, there is the Global Shutter camera, which was http://raspberrypi.com/news/new-raspberry-pi-global-shutter-camera[released in 2023]. There is no infrared version of the GS Camera, however the xref:camera.adoc#filter-removal[IR Filter can be removed] if required. .Global Shutter Camera image::images/gs-camera.jpg[GS Camera] diff --git a/documentation/asciidoc/accessories/camera/filters.adoc b/documentation/asciidoc/accessories/camera/filters.adoc index 483215008..bb480a8b6 100644 --- a/documentation/asciidoc/accessories/camera/filters.adoc +++ b/documentation/asciidoc/accessories/camera/filters.adoc @@ -30,9 +30,9 @@ The HQ and GS Cameras use a Hoya CM500 infrared filter. Its transmission charact image::images/hoyacm500.png[CM500 Transmission Graph,width="65%"] -== IR-Cut Filter +== IR Filter -Both the High Quality Camera and Global Shutter Camera contain an IR-Cut filter, which is used to reduce the camera's sensitivity to infrared light. This ensures that outdoor photos look more natural. However, some nature photography can be enhanced with the removal of this filter; the colours of sky, plants, and water can be affected by its removal. The camera can also be used without the filter for night vision in a location that is illuminated with infrared light. +Both the High Quality Camera and Global Shutter Camera contain an IR filter, which is used to reduce the camera's sensitivity to infrared light. This ensures that outdoor photos look more natural. However, some nature photography can be enhanced with the removal of this filter; the colours of sky, plants, and water can be affected by its removal. The camera can also be used without the filter for night vision in a location that is illuminated with infrared light. === Filter Removal From 287f859dfe4e94c418a418846366fcbf5242fc76 Mon Sep 17 00:00:00 2001 From: Natalie Ho Date: Tue, 26 Nov 2024 16:17:44 -0500 Subject: [PATCH 3/4] updates per feedback --- .../asciidoc/accessories/camera/filters.adoc | 43 +++++++++---------- 1 file changed, 21 insertions(+), 22 deletions(-) diff --git a/documentation/asciidoc/accessories/camera/filters.adoc b/documentation/asciidoc/accessories/camera/filters.adoc index bb480a8b6..3b701079f 100644 --- a/documentation/asciidoc/accessories/camera/filters.adoc +++ b/documentation/asciidoc/accessories/camera/filters.adoc @@ -32,40 +32,39 @@ image::images/hoyacm500.png[CM500 Transmission Graph,width="65%"] == IR Filter -Both the High Quality Camera and Global Shutter Camera contain an IR filter, which is used to reduce the camera's sensitivity to infrared light. This ensures that outdoor photos look more natural. However, some nature photography can be enhanced with the removal of this filter; the colours of sky, plants, and water can be affected by its removal. The camera can also be used without the filter for night vision in a location that is illuminated with infrared light. +Both the High Quality Camera and Global Shutter Camera contain an IR filter to reduce the camera's sensitivity to infrared light and help outdoor photos look more natural. However, you may remove the filter to: -=== Filter Removal - -The filter removal procedure applies to both the HQ and GS cameras. The HQ camera is shown in the demonstration below. +* Enhance colours in certain types of photography, such as images of plants, water, and the sky +* Provide night vision in a location that is illuminated with infrared light -WARNING: Before proceeding read through all of the steps and decide whether you are willing to void your warranty. *Do not proceed* unless you are sure that you are willing to void your warranty. +=== Filter Removal WARNING: *This procedure cannot be reversed:* the adhesive that attaches the filter will not survive being lifted and replaced, and while the IR filter is about 1.1mm thick, it may crack when it is removed. *Removing it will void the warranty on the product*. Nevertheless, removing the filter will be desirable to some users. +You can remove the filter from both the HQ and GS cameras. The HQ camera is shown in the demonstration below. + image:images/FILTER_ON_small.jpg[width="65%"] -Work in a clean and dust-free environment, as the sensor will be exposed to the air. Unscrew the two 1.5 mm hex lock keys on the underside of the main circuit board. Be careful not to let the washers roll away. +NOTE: Make sure to work in a clean and dust-free environment, as the sensor will be exposed to the air. +1. Unscrew the two 1.5 mm hex lock keys on the underside of the main circuit board. Be careful not to let the washers roll away. ++ image:images/SCREW_REMOVED_small.jpg[width="65%"] - -There is a gasket of slightly sticky material between the housing and PCB which will require some force to separate. You may try some ways to weaken the adhesive, such as a little isopropyl alcohol and/or heat (~20-30 C). - -Once the adhesive is loose, lift up the board and place it down on a very clean surface. Make sure the sensor does not touch the surface. - +2. There is a gasket of slightly sticky material between the housing and PCB which will require some force to separate. You may try some ways to weaken the adhesive, such as a little isopropyl alcohol and/or heat (~20-30 C). +3. Once the adhesive is loose, lift up the board and place it down on a very clean surface. Make sure the sensor does not touch the surface. ++ image:images/FLATLAY_small.jpg[width="65%"] - -Turn the lens mount around so that it is "looking" upwards and place it on a table. - +4. Turn the lens mount around so that it is "looking" upwards and place it on a table. ++ image:images/SOLVENT_small.jpg[width="65%"] - -To minimise the risk of breaking the filter, use a pen top or similar soft plastic item to push down on the filter only at the very edges where the glass attaches to the aluminium. The glue will break and the filter will detach from the lens mount. - -Given that changing lenses will expose the sensor, at this point you could affix a clear filter (for example, OHP plastic) to minimize the chance of dust entering the sensor cavity. - +5. To minimise the risk of breaking the filter, use a pen top or similar soft plastic item to push down on the filter only at the very edges where the glass attaches to the aluminium. The glue will break and the filter will detach from the lens mount. ++ image:images/REMOVE_FILTER_small.jpg[width="65%"] - -Realign the housing with the gasket, which remains on the circuit board. Replace the main housing over the circuit board and secure it in place. Apply the nylon washer first to prevent damage to the circuit board. Next, fit the steel washer, which prevents damage to the nylon washer. Screw down the two hex lock keys. As long as the washers have been fitted in the correct order, they do not need to be screwed very tightly. - +6. Given that changing lenses will expose the sensor, at this point you could affix a clear filter (for example, OHP plastic) to minimize the chance of dust entering the sensor cavity. +7. Replace the main housing over the circuit board. Be sure to realign the housing with the gasket, which remains on the circuit board. +8. Apply the nylon washer first to prevent damage to the circuit board. +9. Next, fit the steel washer, which prevents damage to the nylon washer. Screw down the two hex lock keys. As long as the washers have been fitted in the correct order, they do not need to be screwed very tightly. ++ image:images/FILTER_OFF_small.jpg[width="65%"] NOTE: It is likely to be difficult or impossible to glue the filter back in place and return the device to functioning as a normal optical camera. From ac8f8db5da6fdaa93dc3fe9e0dfc8d0c8c3c655e Mon Sep 17 00:00:00 2001 From: Natalie Ho Date: Wed, 27 Nov 2024 10:22:43 -0500 Subject: [PATCH 4/4] bit more feedback --- .../asciidoc/accessories/camera/filters.adoc | 20 +++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/documentation/asciidoc/accessories/camera/filters.adoc b/documentation/asciidoc/accessories/camera/filters.adoc index 3b701079f..32ac70e02 100644 --- a/documentation/asciidoc/accessories/camera/filters.adoc +++ b/documentation/asciidoc/accessories/camera/filters.adoc @@ -39,7 +39,7 @@ Both the High Quality Camera and Global Shutter Camera contain an IR filter to r === Filter Removal -WARNING: *This procedure cannot be reversed:* the adhesive that attaches the filter will not survive being lifted and replaced, and while the IR filter is about 1.1mm thick, it may crack when it is removed. *Removing it will void the warranty on the product*. Nevertheless, removing the filter will be desirable to some users. +WARNING: *This procedure cannot be reversed:* the adhesive that attaches the filter will not survive being lifted and replaced, and while the IR filter is about 1.1mm thick, it may crack when it is removed. *Removing it will void the warranty on the product*. You can remove the filter from both the HQ and GS cameras. The HQ camera is shown in the demonstration below. @@ -47,23 +47,23 @@ image:images/FILTER_ON_small.jpg[width="65%"] NOTE: Make sure to work in a clean and dust-free environment, as the sensor will be exposed to the air. -1. Unscrew the two 1.5 mm hex lock keys on the underside of the main circuit board. Be careful not to let the washers roll away. +. Unscrew the two 1.5 mm hex lock keys on the underside of the main circuit board. Be careful not to let the washers roll away. + image:images/SCREW_REMOVED_small.jpg[width="65%"] -2. There is a gasket of slightly sticky material between the housing and PCB which will require some force to separate. You may try some ways to weaken the adhesive, such as a little isopropyl alcohol and/or heat (~20-30 C). -3. Once the adhesive is loose, lift up the board and place it down on a very clean surface. Make sure the sensor does not touch the surface. +. There is a gasket of slightly sticky material between the housing and PCB which will require some force to separate. You may try some ways to weaken the adhesive, such as a little isopropyl alcohol and/or heat (~20-30 C). +. Once the adhesive is loose, lift up the board and place it down on a very clean surface. Make sure the sensor does not touch the surface. + image:images/FLATLAY_small.jpg[width="65%"] -4. Turn the lens mount around so that it is "looking" upwards and place it on a table. +. Face the lens upwards and place the mount on a flat surface. + image:images/SOLVENT_small.jpg[width="65%"] -5. To minimise the risk of breaking the filter, use a pen top or similar soft plastic item to push down on the filter only at the very edges where the glass attaches to the aluminium. The glue will break and the filter will detach from the lens mount. +. To minimise the risk of breaking the filter, use a pen top or similar soft plastic item to push down on the filter only at the very edges where the glass attaches to the aluminium. The glue will break and the filter will detach from the lens mount. + image:images/REMOVE_FILTER_small.jpg[width="65%"] -6. Given that changing lenses will expose the sensor, at this point you could affix a clear filter (for example, OHP plastic) to minimize the chance of dust entering the sensor cavity. -7. Replace the main housing over the circuit board. Be sure to realign the housing with the gasket, which remains on the circuit board. -8. Apply the nylon washer first to prevent damage to the circuit board. -9. Next, fit the steel washer, which prevents damage to the nylon washer. Screw down the two hex lock keys. As long as the washers have been fitted in the correct order, they do not need to be screwed very tightly. +. Given that changing lenses will expose the sensor, at this point you could affix a clear filter (for example, OHP plastic) to minimize the chance of dust entering the sensor cavity. +. Replace the main housing over the circuit board. Be sure to realign the housing with the gasket, which remains on the circuit board. +. Apply the nylon washer first to prevent damage to the circuit board. +. Next, fit the steel washer, which prevents damage to the nylon washer. Screw down the two hex lock keys. As long as the washers have been fitted in the correct order, they do not need to be screwed very tightly. + image:images/FILTER_OFF_small.jpg[width="65%"]