Zeiss LSM 900 Bedienungsanleitung

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

Zeiss LSM900 Room Be311

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

A few points of attention:

- Do not use too much oil

- Do not use oil on the dry-lenses

- Clean the oil-lenses (40X, 63X) after use

with a tissue and ethanol

- Do not eat or drink behind the microscope

- Throw away your garbage

- Be careful with the microscope

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

Turning on the system

1. Turn on the ‘system’-switch behind the table, box above the box with the key. DO NOT TOUCH

OTHER SWITCHES OR THE KEY!

2. Turn on the connector box on the microscope-table. DO NOT TURN ON OR OFF THE

MICROSCOPE.

3. Turn on the computer

4. Double click ‘Zen Blue’. If the whole system has been turned on click ‘Yes’ when asked to

calibrate. The calibrate question will not appear if the system is on and only the software is

started.

Looking and searching through the microscope

1. First use the 5X-, 10X- or 20X-lens!!

a. Choose a lens by clicking on the right lens in the

‘Microscope’-window on the right of the screen.

2. In the Zen-program click ‘locate’

3. On the microscope touch screen touch ‘load position’

4. Put a slide under the microscope and touch

5. In the Zen-software click on one of the excitation wavelenghts

(DAPI, 488 561). This will automatically choose the correct

settings and open the shutter.

6. At ‘Reflected light’ you can close the shutter with ‘Off’

7. Push the slider on the microscope in (right side of the oculairs)

and focus your slide

8. If necessary change to the 40X- or 63X-lens: a message ‘Change

immersion” appears on the screen. Put a little bit oil on your

slide, press ‘done’ and focus again

9. Switching to other lenses from an oil-lens or from a dry lens to an oil-lens will result in a

message ‘Change immersion’: please apply immersion or clean objective/specimen’. After

applying oil or removing oil press ‘Done’.

BE SURE TO REMOVE THE OIL WHEN SWITCHING TO THE 20X-LENS!!

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

Making a new configuration and a quick first confocal image

Tip: undock the channels window by clicking on the arrow pointing up to the right

1. Click ‘acquisition’ and pull the slider on the microscope totally out

(right side of the oculars on the microscope)

2. Click ‘Smart setup’

3. Click on ‘+Dyes & Contrast Methods’

4. Double-click on a dye. The dye will appear in

the Smart Setup

5. To set up your acquisition channels you have

to select all the dyes that are in your sample.

6. When done, close the ‘Add dye or contrast

Method’ window

7. If you want you can change the colors of the

channels by clicking on the arrowhead next to

the color

8. Choose one of the proposals (fastest, best

signal, smartest) and click ‘OK’. Best signal

takes longer but gives better results (less

crosstalk). Smartest (line-switching) is fast but also very accurate.

9. Go to the ‘Acquisition Mode’-window, choose an ‘Averaging number’.

The higher the number, the less noise but also the longer it will take to

make the image: quality vs. time, your decision.

10. Click on the button ‘Confocal’: sampling will be set to 1 and the frame

size will be adjusted to get the best pixel size calculated from the

numerical aperture and Nyquist rate. You can always change the

frame size by clicking on ‘Presets’ and choose another setting.

11. Go to the channels window and turn one track on for focussing

12. Click ‘Set exposure’

13. Click ‘Live’ and adjust the focussing

14. Turn on all tracks and click ‘Set exposure’

15. Click ‘Snap’: a first confocal image will appear.

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

Zooming in

1. In the ‘Acquisition Mode’-window click on ‘Crop Area’: a square will appear on screen

2. Click on the little cross, hold and move the square over the object of interest

3. The square is already zoom 2. You can increase the zoom by clicking on a corner, hold it and

move the mouse so a smaller square will be made. Another way is using the slider or

arrowheads next to ‘Crop Area’

4. The frame size will be automatically adjusted, to get the best pixel size.

5. Click ‘Live’ to see if the image is OK or/and click Snap’.

Adjusting tracks manually

Set-exposure can result in too high signals for some specimens. You have to adjust the settings

by hand

1. Make a channel active in the ‘Channels’- window. You can leave all tracks

on!

2. Click live and check on the ‘Range indicator’. A black and white image

appears where blue has the grey value 0 and red has the grey value 255

(overexposed)

3. When necessary put the ‘Digital Gain’ back to 1

4. When necessary lower the ‘Digital Offset’ to a negative value to put the

background to 0. Normally the current value (0) is OK. It is also possible to

get rid of auto-fluorescence or a-specific staining by lowering the ‘Digital

Offset’ more. But don’t go too low or you will remove your positive

signal!

5. Change the ‘Master Gain’ to a value that your positive signal has just a

few red pixels.

6. The higher you put the ‘Master Gain’ the more noise will appear.

7. Avoid the horizontal stripes that appear when the ‘Master Gain’

is set too high! When this happens, raise the ‘Digial Gain’ to make weak signals visible

8. You can also raise the laser-power to get more signal, but don’t go too high or you will bleach

your slide. This differs per fluorochrome.

9. When done, activate another channel and do the adjustments again.

10. Be aware: when using line switching per track instead of frame-switching, the channels that are

shown on the same detector (see the tracks in the ‘Imaging Setup’-window) have the same

‘Master Gain’ setting. Set a common gain for both channels and do a fine adjustment with the

laser power.

11. When all channels are set, click ‘Snap’.When switching to a different lens, check the settings

again. They will also change between lenses.

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

Saving the image

There are 2 ways of saving your image in .CZI format: uncompressed or compressed

Uncompressed:

1. Click ‘File’ and choose ‘Save as CZI’

2. Go to the right network-folder, give your image a name and press ‘Save’

Compressed:

1. Go to ‘File’ and choose ‘Save with options’

2. Go to the right network-folder, give your image a name

3. Choose a compression method at ‘Compression’ and press ‘Save’

Making images with old or the same settings

- Open a CZI-image that was made earlier; NOT a tif or jpg image!

- Go to the left top of the screen next to ‘Smart setup’ and press ‘Reuse’.

- Activate a track, press ‘Live’ and if necessary adjust ‘Master Gain’, ‘Digital Offset’ and if

necessary ‘Digital Gain’ per Track. Press ‘Stop’ and go to the next track for adjusting.

- Check on all tracks and press ‘Snap’

Making a Z-stack

1. Check in ‘configuration’ the ‘Z-stack’ on

2. Click on the ‘Z-stack’ bar: the settings appear

3. At ‘Interval’ set a value; this is the space between 2

consecutive slides. If you press ‘Optimal’ that value will be

taken over in ‘Interval’ (half of the pinhole-setting)

4. Press ‘Center’, the other ‘Center’, press “First last’

5. Activate the track with the biggest volume

6. Click ‘Live’

7. Move the fine coarse adjustment knob of the microscope

forwards until there is no more signal. The figure in ‘Z-

stack’ shows a blue square going up towards ‘L’.

8. Click ‘Set last’

9. Move the fine coarse adjustment knob of the microscope

towards you until there is no more signal. The figure in ‘Z-

stack’ shows a blue square going down towards ‘F’.

10. Click ‘Set first’; the number of slices will be automatically

set

11. Move the fine coarse adjustment back to put the current level to the middle and click ‘Stop’

12. Select “full Z-Stack per Track” to speed up the acquisition

13. Be sure all tracks are on, set ‘Averaging’ to 2 or 4 and click

‘Start experiment’

14. A series of images will be taken with a distance of ‘interval’

between every slice. Save the series. On the left of the image

a series of buttons appear (2d, Gallery, 3D etc.): try them out,

see what happens. Nothing can go wrong.

15. In ‘Dimensions’ a slider appears at ‘Z-position for stepping through the series

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

Tile module

See Picture A next to microscope for yellow numbers

Making an overview: Decide if you want to make an overview. If not: go to Tile-scan with high

magnification

1. Decide if you want to make an overview with the 5X-lens (mostly used to see where tissue or

cells are with 1 color) or the 10X-lens (more detailed information and better if you want to see

more than 1 color)

2. Change to the correct lens (make sure you remove any oil if necessary)

3. Click on the arrowhead next to ‘Default-EMC’ (1) and open either ‘5X-overview-diag-coupe’

(whole slide, rectangle coverglass), ‘5X-overview-cells’ (round coverglass) or ‘10X-overview-line-

4colors’

4. Turn off the colours you don’t want to use in ‘Channels’ (2)

5. When necessary check on ‘Tiles’ (3), open the ‘Tiles’ window and click on ‘Show viewer’ (4)

6. Zoom out until you see the contours of the slide; the blue cross is where the image will be made

at this moment.

7. You can move the table by double clicking in the contour of the slide

5X-overview:

1. When necessary click on the tile and adjust the size with the white edges (5). You can move the

tile by clicking on the cross (6), hold it and move it.

2. In ‘Channels’ (2) activate a track you want to record, press ‘Live’, focus and adjust the settings.

Do this for all tracks you want to record.

3. In the ‘Tiles’-window right-click on the tile (TR1) (7) and click ‘Set current Z for selected tile

regions’.

4. In the Tile-viewer click ‘Preview’ (8), check off ‘Use experiment settings’ (9) and choose if you

want to ‘Delete Existing Preview Images’ (10)

5. Turn off the channels (11) you don’t want to record by clicking on the name and click ‘Start’

(12). You can stop the scanning whenever you want.

10x-overview:

6. In ‘Channels’ (2) activate the channel you want to record, press ‘Live’, focus and adjust the

settings.

7. Make a new tile by doing one of these options:

8. Click on the square with the plus (13) and define a tile by numbers at x and y, click ‘Add tile

region’

9. Click on the square with the plus (13), click on the circle and define a tile by either number of

tiles or diameter in um, click ‘Add Tile Region’

10. Click on the square without the plus (14), choose rectangle, circle or freehand and draw a region

11. You can define more than 1 region

12. In the tile-window at ‘tile-regions’ (4) a new tile appears. When the tile is checked off the tile

will not be visible in the tile-viewer and will not be recorded.

13. In the ‘Tiles’-window right-click on the tile (TR+nr, 7) and click ‘Set current Z for selected tile

regions’. When you have more regions/tiles you can click “verify” and check the Z-settings for

every region or tile.

14. In the Tile-viewer click ‘Preview’ (8), check off ‘Use experiment settings’ (9) and choose if you

want to ‘Delete Existing Preview Images’ (10)

15. Turn off the channels (11) you do not want to record by clicking on the name and click ‘Start’.

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

A preview will be made and showing on the screen. The preview image can

be saved by right-clicking on the image and choose ‘Save preview images’:

the image will appear in the main window and can be saved with ‘Save as

CZI’. When more preview images are made with ‘Delete Existing Preview

Images’ checked off, they will be saved as different scenes. Saved overview

images can be reloaded by right-clicking in the Tile-viewer and choose

‘Import Preview Image’ or by dragging an image from ‘Images and

Documents’ into the Tile Viewer.

When you check off the tile in the Tiles-window (7) you will only see the preview image. When

you double click on an area in that image the stage will go to that area.

If you want to make a tile-scan with a higher magnification:

Tile-scan with high magnification

1. Change the lens

2. Make a new configuration (smart setup) or load an image and press ‘Reuse’ (right below 1)

3. If necessary change the image settings in the ‘Acquisition Mode’ window

4. Check on ‘Tiles’ (3) and click ‘Show viewer’ (4) in the Tiles-window

5. If necessary right-click in the viewer, choose ‘Import preview image…’ and load your previously

saved preview image

6. Double-click on an area you want to image or go to an area by eye (locate)

7. Click ‘Live’ and adjust the focus and settings (laser, ‘Master Gain’ etc.) of all channels you want

to record

8. Make a new tile by doing one of these options:

9. Click on the square with the plus (13) and define a tile by numbers at x and y, click ‘Add tile

region’

a. Click on the square with the plus (13), click on the circle and define a tile by either

number of tiles or diameter in mm, click ‘Add Tile Region’

b. Click on the square without the plus (14), choose rectangle, circle or freehand and draw

a region; right-click for ending freehand drawing

c. In the ‘Tiles’-window right-click on the tile (TR+nr, 7) and click ‘Set current Z for selected

tile regions’. When you have more regions/tiles you can click “verify” and check the Z-

settings for every region or tile. When you have very big images which are not

completely straight, you can add multiple focus points (see below).

10. You can define more than 1 region

11. Check on ‘Automation’ (15)

12. In the automation-window check on ‘Run macro after experiment

execution’, click on the dots and choose ’01

Automated_Stitching_Active-Image.py’

13. Start the imaging by clicking ‘Start Experiment’ (16).

14. Save the result as CZI

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

The result images can also be reloaded in the tile-viewer in a later stage, even on another day.

Be sure to put the right slide in the same way under the microscope!

Images with more scenes can be split into separate images at ‘Processing’-‘Utilities’-‘Split

Scenes’, also possible with the freeware Zen-software you can install on your own computer.

Adding multiple focus points

1. In the tile module click “Focus Surface and Support Points”

2. Make the tile where you want to add support points active by

clicking on the name

3. Scroll down to “Add Multiple Support Points”

4. There are 2 ways of adding support points:

a. Generic: choose the number of coloumns and rows

and press ‘Distribute’

b. Onion skin: choose density and margins and press

‘Distribute’.

5. When you are not happy with the distribution you can press

, choose ‘Delete all support points from selected tile

regions’ and try again.

6. In the Tile small circles with dots appear that indicate the focus points.

7. You can verify the support points or do an autofocus before scanning

Verify

8. Click “Verify” and click “Live” to see the live image.

9. Click “Move to Current Point” and set the correct focus. When the focus of this point is correct,

press “Set Z & Move to Next”. The system will go through all the points and remember the Z-

position.

10. When all points have been verified, click close and press Stop.

Autofocus:

11. Open the ‘Focus strategy’ window

12. At the first arrowhead choose ‘Use Z values/Focus surface defined in Tiles

setup’

13. At the second arrowhead choose ‘By software autofocus’

Manual Zeiss LSM 900

Erasmus Optical Imaging Centre document version #1

14. Open the ‘Software autofocus’ window

15. Activate ‘Intensity’, ‘Smart’, ‘Default’, ‘Relative Range’ and check

on ‘Automatic Range’

Now you can image as before:

16. Check on ‘Automation’ (15)

17. In the automation-window check on ‘Run macro after experiment

execution’, click on the dots and choose ’01

Automated_Stitching_Active-Image.py’

18. Start the imaging by clicking ‘Start Experiment’ (16).

19. Save the result as CZI

It is possible to combine a tile-scan with z-stacks! Be aware of the time this will take.

Shutting down the system

1. On the microscope touchscreen press ‘Load position’

2. Remove your slide and press

Always end with the table in the up (= working) position!

3. If necessary clean the oil lenses

4. Save the images you want to save

5. Close the Zen software

6. Have a look in the agenda and see if there will be someone after you

7. Someone after you:

8. Leave the system as it is

9. Last user of the day:

10. Shut down the computer

11. Turn off the connector box on the microscope table

12. Turn off the ‘system’-switch behind the table, box above the box with the key. DO NOT TOUCH

OTHER SWITCHES OR THE KEY!

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