BRESSER Extension Tube 37,5 mm for 2.5" HEXAFOC

Are you having trouble focusing your eyepiece or camera? Then use this BRESSER 25 mm extension sleeve to increase the distance between the 2.5 inch HEXAFOC eyepiece extension and the eyepiece or camera. The extension sleeve has an M68x0.75 mm internal and external thread and can therefore be screwed directly onto the HEXAFOC draw tube.SPECIFICATIONSIncreases the distance to the eyepiece/camera Suitable for 2.5 inch HEXAFOC Optical length: 25 mm Internal and external thread: M68x0,75 mmInside black matt coated Material: aluminium, black anodized SCOPE OF DELIVERYExtension sleeve 25 mm (1 piece)

Enables you to connect a camera to telescopes that accept 2" barrel eyepieces. You will need a T2-ring for your special camera type also. The very special feature of this adaptor is the very short mechanical design (2.0mm) which enables the camera use also on telescopes with a short focal range. This adapter is also prepared to use with 2" filters.   

A very good diagonal mirror for telescopes with 2" focuser and for the BRESSER Messier telescopes with a 2.5"- HEX focuser. Enables the use of eyepieces and accessories with 2" barrel, so that a wider field of view can be reached. A larger light beam and a comfortable observation position is achieved by this 2 inch zenith mirror. Especially for use with refractors and for zenith observations a useful accessory.  The clamping ring is made of brass, so there will be no scratch marks on your high-quality eyepiece. The precise clamping is another advantage. The BRESSER 2" Diagonal Mirror is completely made of metal and has a very accurate flat mirror. The dielectrical coating delivers a 93% reflectance and is very durable against enviromental influences. FEATURES Star diagonal mirror for focuser with 2" barrel High quailty flat mirror Dielectrical mirror coating delivers a 93% reflectance Very durable against enviromental influencesEyepiece adapter 1.25/2.0 inch includedBrass eyepiece clamping ring Housing completely made of metal Dust caps included SCOPE OF DELIVERY diagonal mirroreyepice adapter 1.25/2.0 inch dust caps

BRESSER Solar Filter 244.8mm for Messier NT-203Category: Spare Part for Messier Telescope SeriesDescription: The high-quality Solar Filter with a diameter of 244.8mm is suitable for Messier NT-203 Telescopes (models 4803800, 4803100, 4803120, 4716420 NT203). It enables safe solar observations with impressive detail accuracy and is compatible with the BRESSER Messier Telescope series. Please check compatibility using the product number on your optical instrument.

Universally usable variable polarizing filter with a  2" filter thread.This variable polarizing filter allows for a continuous adjustment of the image brightness. This is very helpful to level strong differences in contrast of different observation objects individually. Particularly for lunar and planetary observations but also for solar observations this filter prevents an outshining of details.Solar observations ONLY together with an adequate solar filter !!! Particularly when a Herschel wedge is used and with large objective lens apertures the use of the variable polarizing filter can reduce the brightness of the observation object to a confortable level. The large adjustment range of 40% to 1% light transmission and the neutral grey filter effect create a comfortable and unadulterated image.The handling is very simple. The desired filtering level is set by turning the two sides of the housing against each other.A 2.0" filter thread on both sides (female/male) allow for the simultaneous use of additional colour filters.FEATURESvariable polarizing filterindividually adjustable image brightnessmade from high-quality optical glassblack anodized aluminium housing2.0" filter thread on both sidesSCOPE OF DELIVERYpolarizing filterprotective box

Are you having trouble focusing your eyepiece or camera? Then use this BRESSER 25 mm extension sleeve to increase the distance between the 2.5 inch HEXAFOC eyepiece extension and the eyepiece or camera. The extension sleeve has an M68x0.75 mm internal and external thread and can therefore be screwed directly onto the HEXAFOC draw tube.SPECIFICATIONSIncreases the distance to the eyepiece/camera Suitable for 2.5 inch HEXAFOC Optical length: 25 mm Internal and external thread: M68x0,75 mmInside black matt coated Material: aluminium, black anodized SCOPE OF DELIVERYExtension sleeve 25 mm (1 piece)

NEW - now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation. The BRESSER Messier 6 inch Planetary Dobson is something very special. Despite its low price, it offers a variety of functions and quality, which you sometimes look for in the considerably more expensive devices in vain. With an aperture diameter of 150 mm and a focal length of 1200 mm of this high quality BRESSER newtonian optics, the observation of the moon, the planets and planetary nebulae is particularly well possible.  Craters and grooves of the moon as well as the fast changing shadows cast by the so-called terminator line are exciting observation targets. Saturn with its impressive ring, Jupiter with its bands of clouds and the movement of its easily visible moons, the crescent shape of Venus and the glowing red Mars are good examples of what this telescope can be used for. Because of the long basic focal length you can easily achieve the high magnifications required for this purpose with this telescope. You do not need expensive special eyepieces. In short, this is a telescope primarily for detailed observation. Nevertheless bright deep sky objects like the Orion Nebula or the galaxies Messier 81 and 82 etc. can be observed as well. Also photography is no problem with this tube. Here is another strength of this telescope: if you want to take pictures, you can simply unscrew the altitude wheels from the tube and put them on a EQ mount with an optionally available dovetail rail - and nothing more stands in the way of astrophotography. The included eyepiece adapter has the common T2 connection thread (M42x0.75mm), to which almost every standard camera can be attached. Only the camera specific T2 adapter ring is additionally required. Of course, also common USB planetary cameras with 1.25 inch or 2 inch plug diameter can be used directly with this telescope. With the original equipment you can observe immediately - an optical 6x30 viewfinder and a 25 mm SPL eyepiece are included. For those who want to transport the device as compact as possible, the new 6'' BRESSER Messier Planet Dobson makes it very easy - the rocker box can be disassembled in a few easy steps, because the parts are assembled with metal quick connectors. So a bulky rocker box quickly turns into a handy flat package of boards. A telescope whose versatility, performance and user-friendliness set new standards in this price class. Please note that Newtonian reflector telescopes are very good for astronomical observations of the starry sky, but are not well suited for observing nature and landscapes during the day. For nature and landscape observations we therefore recommend BRESSER lens telescopes. FEATURES Optical design: reflector telescopeMirror diameter: 150 mm / focal length: 1200 mm / F/8Maximum recommended magnification: 300xTelescope for night and solar observation High quality BRESSER Newton optics Ideal telescope for planets, moon, double stars and planetary nebulae Sun observation through the included sun filter possibleStable and smooth 2 inch 50.8mm Rack and Pinion focuser Main mirror made of special glass with low thermal expansion Easy to move metal tube for balancing Demountable rocker box with accessory tray Tube mounting on altitude wheels using tube clamps Use of the optics also on other mounts Different sized adjustment and counter screws on the mirror cell Viewing height at zenith: approx. 115cm (suitable for children and teenagers) Tube weight: 8.3 kg Basic weight: 7,8 kg Total weight: 16,1 kg Dimensions ready to use telescope: 45 x 45 x 128 cm Shipping dimensions 1 carton: 47x47x84cm, 18kg SCOPE OF DELIVERY Optical tube Dobson Telescope Mount (disassembled for self assembly) Aperture Solar Filter Optical 6x30 viewfinder 25mm SuperPlössl eyepiece (Ø 31.7 mm / 1.25 inch') 1 Extension tube 25mm for 2 inch focuser 1 Eyepiece adapter diameter 31.7 to 50.8 mm 2 Tube clamps 2 Altitude wheels

Connects accessories with the M68x1 male thread to the imaging side of the 0.7x Reducer/Corrector 0510360.