Observatorio del Roque de Los Muchachos (La Palma, Canary Islands, Spain): Swedish Solar Tower (SST) in the center, Dutch Open Telescope (DOT) on the left with the dome of the William Heschel Telecope (WHT).

Swedish Solar Tower (SST) - left picture and Dutch Open Telescope (DOT) - right picture). Colleagues are removing coverings of the SST entrance 1-m lens and coverings of the finder telescopes.

Control rooms of the Swedish Solar Tower (SST) - left picture and Dutch Open Telescope (DOT) - right picture - with Pit Sutterlin operating the DOT.

Adaptice optics (AO) of the Swedish Solar Tower (SST). Bright spot on the top of pictures is the primary focus of the telescope, black structure below it holds the tip/tilt mirror of the correlation tracker and the deformable mirror of the adaptive optics and the reimaging lens sending the light to the spectrograph seen through the hole in the wall on the lest picture.

Left: close look on the setup of the slit-jaw cameras and optical components directing the beam to these cameras as well to CT and wavefront sensor (WFS) of the AO system, all situated in front of the entrance spectrograph slit. Right: general view of the setup from the opposite side - black box is the Littrow spectrograph, CT and WFS are seen on the left.

Two close looks of the setup in front of the spectrograph: left to right - WFS, CT, optical components feeding them with light, spectral cameras.

Examples of two monitors used for operation of the slit-jaw and spectral cameras: left - 6302/3 SJ ans SP, right - Ca II H line filtergram.

Special event of the campaign: cleaning of the evelation endoders of the SST turret: left - Rolf Kever, ALes Kucera and Jan Rybak umounting the rings covering the encoders, right - cleaning of the encoders: Julius Koza, Rolf Kever and Peter Gomory.

Left - Peter Gomory and Jan Rybak cleaning the encoders, right: Ales Kucera with his camera taking this picture and Rolf Kever turning the telescope for checking of the encoders.

Cleaning of the 1m lens of the SST: left - Rolf Kever washing the lens, right: again Rolf cleaning and drying the lens.

Very special event: excursion to the DOT with its 'father' Dr. Rob Hammerschlag: primary mirror and mounting of the DOT on its 15m tall platform (left), Dr. Hammerschlag working on closing the telescope (right).

Very special event: excursion to the DOT with its 'father' Dr. Rob Hammerschlag: primary focus of the DOT with its assembly of filters and cameras for solar tomography (left), Dr. Hammerschlag explaining details of the DOT when its dome is already covered (right).

Other activities during the campaign: ESMN seminar - Rob Rutten during his lecture on observational diagnostics of the magnetic bright points in the solar photosphere (left), Jan Rybak during his lecture on how to compare numerical simulations and spectroscopic observations of the solar photoshere (right).

Other activities during the campaign: ESMN seminar - Peter Gomory during his lecture on CDS observations of the C-class flare (left), Julius Koza during his lecture on response functions of the spectral lines (right).

Other activities during the campaign: ESMN seminar - Ales Kucera during his lecture on multiwavelength study of a M5.4 flare (left), Pit Sutterlin during his introduction to the speckle image reconstruction (right).

Very special in-situ activity: excursion to the WHT - William Herschel Telescope (4.5m) - (left) and to the Isaak Newton Telescope (2.5) - (right).

Very special in-situ activity: excursion to the GTC - Gran Telescopio Canarias - the largest telescope in the world (11.35m) - under construction (left) and to the Carlsber Meridian Circle - (right).

Very special in-situ activity: excursion to the DOT speckle processor with Pit Sutterlin explaining the details (left) and Rob Rutten and Jan Rybak planning relaxing activities (right).