diff --git a/source/tutorials.rst b/source/tutorials.rst
index c548fb372..8c96f6276 100644
--- a/source/tutorials.rst
+++ b/source/tutorials.rst
@@ -299,34 +299,49 @@ Docker has a lamentable use of space and by default does not clean up excess dat
Using Singularity
*****************
-[Singularity](https://sylabs.io/) is another container platform able to run Docker images. Singularity can be run both on local machins and in instances where the user does not have root access. Instances where a user may not have root privlidges include HPC clusters and cloud cluster resources.
+`Singularity `__ is another container platform able to run Docker images.
+Singularity can be run both on local machins and in instances where the user does not have root access.
+Instances where a user may not have root privlidges include HPC clusters and cloud cluster resources.
A container is a single file without anything else to install.
-Downloading image
-=================
-Singularity can use ODM Docker container after their download. It creates .sif images
+Build Singularity image from Docker image
+=========================================
+Singularity can use Docker image to build SIF image.
-For latest ODM Docker image (Recommended)
+For latest ODM Docker image (Recommended) :
.. code:: bash
- singularity pull --disable-cache docker://opendronemap/odm:latest
-For latest ODM GPU Docker image
+ singularity build --disable-cache -f odm_latest.sif docker://opendronemap/odm:latest
+
+For latest ODM GPU Docker image :
.. code:: bash
- singularity pull --disable-cache docker://opendronemap/odm:gpu
+
+ singularity build --disable-cache -f odm_gpu.sif docker://opendronemap/odm:gpu
Using Singularity SIF image
===========================
-Once you have used one of the above commands to download and create the `odm_latest.sif` image, it can be ran using singularity.
-Place your images in a directory named “images” (for example /my/project/images) , then simply run
-..code:: bash
+Once you have used one of the above commands to download and create the `odm_latest.sif` image, it can be ran using singularity.
+Place your images in a directory named “images” (for example /my/project/images) , then simply run :
+
+.. code:: bash
- singularity run --bind /my/project:datasets/code odm_latest.sif --project-path /datasets
+ singularity run --bind /my/project:/datasets/code odm_latest.sif --project-path /datasets
+
+Like with docker, additional `Options and Flags `_ can be added to the command :
+
+.. code:: bash
-Like with docker, additional Options and Flags can be added to the command.
+ singularity run --bind /my/project:/datasets/code \
+ --writable-tmpfs odm_latest.sif \
+ --orthophoto-png --mesh-octree-depth 12 --ignore-gsd --dtm \
+ --smrf-threshold 0.4 --smrf-window 24 --dsm --pc-csv --pc-las --orthophoto-kmz \
+ --ignore-gsd --matcher-type flann --feature-quality ultra --max-concurrency 16 \
+ --use-hybrid-bundle-adjustment --build-overviews --time --min-num-features 10000 \
+ --project-path /datasets
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Using ODM from low-bandwidth location