Vixen Dew Cap for 200mm Aperture Telescopes

Astrophotographers generally use two different focal lengths: Short focal lengths for overview photos and extensive deep-sky objects, and long focal lengths for objects which are further away. Our aspherical mirror optics offer the perfect solution for these scenarios. The VISAC primary mirror (Vixen Sixth-Order Aspheric Cassegrain) is specially designed for astrophotography and provides a fully flat and true-colour image over the entire image frame. Thanks to the three-element field corrector in front of the convex secondary mirror, there is no spherical aberration, coma or field curvature. Although the device is designed for astrophotography, it is also suitable for visual observations. FEATURES Photographically optimized thanks to field flattener lens Revolutionary coating technology High light-gathering power Photographically optimised optical system Built-in field flattener lens 200 mm aperture and 1800 mm focal length Optional reducer availableBackfocus without Reducer: 142,9 mmBackfocus with Reducer: 63,5 mmWeight: 6.9 kg DELIVERY CONTENT VC200 reflector telescope Carry handle 7x50 finder scope (illuminated) Flip mirror Dovetail adapter

The Vixen dew cap heater prevents your optics from fogging up due to dew.A must-have accessory for cold and damp nights.FEATURES Consumption: 16.2 Ohm (12 V, 8.9 W) Dimensions: 655 mm long heater with 2.2 m cable Connection: 2.1 socket with medium-negative polarity Weight: 120 g DELIVERY CONTENT Battery box Vixen dew cap heater

The longest focal length in the 52° Series with the longest eye relief, the 40mm is also the only 2.0-inch O.D. eyepiece in this series. Explore Scientific now has three 40mm eyepieces in its collection, the other two are the 40mm 62° Series, and the 40mm 68° Series. At this focal length, this eyepiece is generally reserved for deep sky observers who challenge themselves to observe near the faintest observable limit of their telescopes. The huge true field of view is perfect for deep sky objects like the Andromeda Galaxy, the Rosette Nebula, as well as large star clusters, and comets.Comfort, Quality, Value. The Explore Scientific 52° LER Series mid-range focal length eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality and value versus a comparably priced Plossl.  These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patented EMD-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.SPECIFICATIONSLarge eye distance, large field and great image sharpnessExcellent viewing position for people with glassesExcellent field sharpness even with fast optics52° apparent field of viewArgon-purging prevents internal fogging, the sealing facilitates cleaningPatented EMD-coating to maximize contrastBlackened lens edges to avoid reflexesAll eyepieces of this series are parfocalStainless steel barrel with conical security cutoffDust covers and protective bag includedSCOPE OF DELIVERY52° EyepieceDust coversProtective bag

This Bresser Messier RA+DEC-Motor + Controller MON2 lets you control your Messier telescope more comfortably. Including controller. Suitable for Bresser Messier telescopes or mount with Exos-2 or Mon-2 equatorial mount.Motorkit for both axes (RA und DEC). Handcontrol with 3 preset speeds (1x (sidereal speed); 8x; 32x). Suitable for entry level astrophotography.Included with the delivery: Stepping motor for RA- and DEC axis, mounting material and clutches; handcontrol, battery holder for 8x batteries type D (batteries not included)

NOTE: This item is a used or returned product. This means: The item may show slight signs of use; some accessories may be missing; the packaging may differ from the original packaging. Please note that refurbished items generally come with a 12-month warranty.

AXD2 GoTo mount with VMC260L telescope set The AXD2 mount comes with the new STARBOOK TEN controller and the PFL polar viewfinder, which allows you to configure the mount quickly and easily via reference stars. This telescope set has everything that you need for hobby astronomy. The set includes a telescope, a mount with automatic tracking and a stable tripod. Featuring the STARBOOK TEN controller, the telescope locates celestial objects automatically so that you don’t need to search for them manually. Even if you’re not an expert, you can still give your friends an exciting tour through the night sky! The AXD 2 mount in detail: Robust construction and lightweight housing with 30 kg load capacity (photographic) The RA and DEC axes are made using the A7075 superalloy, one the strongest aluminium alloys. The stability of the A7075 superalloy is stronger than titanium, which is known for its strength as a lightweight material. Its thickness is 38% less than titanium. Using the A7075 superalloy for the axes ensures that the AXD mount is both lightweight and stable. 21 bearings The rotating parts of the AXD mount have a total of 21 bearings. These ensure uniform motion in order to swivel the telescope and track objects. Stepper motors Vixen uses precise stepper motors for the mount in order to ensure optimal performance. The motors are controlled via a micro-step motion control system, which eliminates the disadvantage of stepper motors with large steps. The system generates 400 impulses per second at a high speed. This results in very quiet scanning with no vibrations. The stepper motors on the AXD mount have sufficient torques. This is most significant when working at high magnifications and photographing with a CCD camera with small pixel sizes. Worm gears The sizes of the worm gears were increased in the latest Atlux version. The AXD mount has 270 teeth in the RA axis and 216 teeth in the DC axis. Both axes are 50 mm in diameter. This ensures that the mount operates with precision and stability. Low backlash The Vixen micro-step motion control system ensures that the stepper motors run uniformly at low and high speeds. This eliminates the need for reduction gears in the motor and therefore reduces the backlash in the gears. Elegant design The flat sides of the mount were designed based on previous generations of the New Atlux range. The white and silver housing provides a modern and elegant exterior with high functionality. The AXD is the flagship model in the Vixen mount range. Original motor layout The solid RA and DEC motor units are arranged in the lower part of the mount. This means that they automatically act as a counterweight. As a result, you require far fewer weights on the counterweight bar. On small devices, no counterweight is required. The counterweight bar can be slid fully into the housing. Polar finder scope The AXD mount is equipped with a 6x20 polar finder as standard. The polar finder features an integrated scale, which provides a quick and easy way to polar align the telescope in the northern hemisphere. For observations in southern latitudes, the polar finder features an image of the Octans constellation, which can be aligned with the night sky. VPEC periodic error correction Periodic errors on mounts are usually measured and corrected by the user. Unlike the old StarBook controller, the STAR BOOK TEN controller saves these errors permanently. The periodic error of the mount is measured in the factory and corrected before delivery. This is known as VPEC and functions automatically as soon as you use the mount. It delivers an accuracy of +/- 2.8 arc seconds. You can increase the tracking accuracy further by saving your own recorded periodic errors. The VMC 260 in detail The optics of the VMC260L are significantly better than the traditional Schmidt-Cassegrain telescope. Despite its high 3000 mm focal length, it is just 650 mm long. Featuring a large 260 mm aperture, the telescope collects large amounts of light for serious professional observations and photography of the planets and countless deep-sky objects. Thanks to the dielectric mirrors, the VMV260L guarantees razor-sharp images and maximum brightness. The open lens barrels cool the telescope quicker than conventional closed Cassegrain systems. The telescope can be used with an optional 0.62x focal reducer to reduce the aperture ratio to 1:7.1. This shortens the exposure times and allows you to photograph large objects. The telescope comes with a standard dovetail bar and a carry handle that doubles up as a camera holder for night sky photography. FEATURES AXD2 GoTo mount with VMC260L telescope Professional telescope kit with TR102 tripod Mount with 30 kg load capacity (photographic) Modern STARBOOK TEN controller with autoguider input More than 270,000 pre-installed celestial objects Illuminated polar finder with direct star alignment Professional Maksutov-Cassegrain with 260 mm aperture Very stable metal observatory column Total weight: 70.1 kg WHAT’S INCLUDED P85 observatory column 2 counterweights (1.5 kg and 7.0 kg) 7x50 finder scope Folding mirror Carry handle

The high-quality combination set consisting of the professional Science TRM-301 microscope and the powerful MikroCamII 4K 9MP is the ideal solution for demanding applications in the laboratory. It combines precise optics with modern camera technology – perfect for research, teaching, and documentation at the highest level.The Microscope in DetailThe BRESSER Science TRM-301 is a trinocular transmitted light microscope of top class: Excellent image reproduction, good ergonomics, high stability, and an appealing design characterize it. As a fully usable laboratory microscope, it finds wide application in medicine, biology, agriculture, and industry. It is also highly recommended for the dedicated hobby microscopist as a ''microscope for life''.A particularly important feature of the TRM-301 is its ability for so-called Köhler illumination. Through this optimal specimen illumination, which is exceptionally bright, cool (specimen-friendly), uniform, glare-free, and high-contrast, the performance of the microscope optics is fully utilized. It therefore represents the standard in scientific work and microphotography. The Köhler illumination is adjustable with the fixed built-in field diaphragm and the height-adjustable and centering Abbe condenser (numerical aperture 1.25; with iris diaphragm).Of course, the TRM-301 also features the further equipment typical for high-quality microscopes: with a cross table that moves transversely and longitudinally with Nonius scales, ergonomic coaxial focusing drives (the fine drive achieves 200 µm/revolution), stepless lamp dimmer, plan achromatic objectives (4x, 10x, 40x, 100x-oil spring), 10x wide-field eyepieces (in 30° inclined eyepiece tubes), inter-pupillary distance and diopter adjustment, as well as a photo tube.FEATURES OF THE MICROSCOPETransmitted light microscopeHead type: TrinocularMagnification: 40x - 1000x2 eyepieces: both WF 10x (23mm)4 objectives: 4x, 10x, 40x, 100x oilObjective type: Plan achromaticCondenser: Abbe N.A. 1.25Illumination: 12V/30W halogen with dimmerSCOPE OF DELIVERY OF THE MICROSCOPEMicroscope2x eyepiece4x objectivecoaxial cross table with Nonius adjustmentImmersion oilDust coverPower supply 12V, 4AThe Microscope Camera in DetailWith the BRESSER MikroCamII 9MP 4K, 4K videos can be recorded at up to 30 fps (depending on the system used). Due to the global shutter, there are no image distortions during movement. The large image sensor (14.13 x 7.45 mm) provides a very large field of view.The very high light sensitivity of the Sony® IMX305 CMOS sensor enables very good image quality even in dark field or phase contrast.The BRESSER MikroCam Lab II software offers a variety of different functions, such as measurement in live image (calibration specimen required), mosaic creation, focus stacking (for increased depth of field). Furthermore, almost all automatic functions (exposure time, sensitivity, white balance, etc.) can also be set manually.The functions: mosaic and focus stacking (EDF) can be generated directly from the live image. This can save a lot of time.Even if you are not a professional, you will achieve quick success. To optimally use the mosaic function, a cross table is required.Due to the large sensor, the camera is not optimally suitable for every microscope. There may be edge shading (vignetting) in some cases. This shading is usually prevented by a 1x optic (Art. No. 5914001) that is screwed into the camera.This camera is not designed for the trinocular tube of the ETD-201. In this microscope, not the entire part of the field of view can be used.FEATURES OF THE MICROSCOPE CAMERAModern Sony® IMX305 sensor 14.13mm x 7.45 mm (1'')8.85 MP resolution (4096x2160 pixels)Many software functions, such as measurement, focus stacking (to overlay multiple recordings for increased depth of field), mosaic (to display larger fields of view)Image and video recording, including time-lapse function4K videos at up to 30 fpsVery large field of view in the microscopeHigh-quality metal housingGood compatibility with various microscopesC-Mount thread: for easy adaptability, also suitable for C-Mount objectives1/4'' tripod thread, e.g. for a photo tripodHigh-speed USB 3.0 connectionSYSTEM REQUIREMENTSWindows 10 or 11Intel i3, i5, i7 or i9 processor from 6th generation orAMD Ryzen processorOptical drive or internet connection for software downloadUSB 3.0, 3.1SCOPE OF DELIVERY OF THE MICROSCOPE CAMERACamera headUSB 3.0 cable23.2 mm adapter, 30 mm and 30.5 mmRecording and image processing software (for Windows)