BRESSER Reduction lens 0.75x variable (Refurbished)

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.Excellent for entering into the hobby of astronomy: 90mm aperture delivers 200 times more light than the naked eye! Observe craters, valleys and rims on the moon from nearly 400,000km away just as you would look out of the window of a spaceship! The MESSIER AR-90L does not only provide highly detailed views of the moon: Gaze at the division of the rings of saturn millions of kilometers away or explore the Great Red Spot of Jupiter, a giant tornado in Jupiter's atmosphere. Watch the seasons on Mars and find the sickle of Venus. The MESSIER AR-90L gives you images that are many times brighter than the instrument Galileo Galilei was using for his famous explorations almost 400 years ago. This telescope is an optical tube without mount and tripod. FEATURESOptical design: refractor telescopeLens diameter: 90 mm / focal length: 1200 mm / F/13.3Maximum recommended magnification: 180xTelescope for night and solar observationHigh quality BRESSER refractor opticsIdeal telescope for planets, double stars and planetary nebulae31.7 mm (1.25") diagonal mirror6x30 straight through viewfinder reticleoptimized finder socket for comfortable useCradle ring with piggyback camera holder (1/4 thread)Smartphone camera adapter for sky navigation includedUniversal 44mm Dovetail adapter (fits LXD75/Great Polaris/EQ5)Rack and Pinion focuser 31,7 mm / 1,25" SCOPE OF DELIVERY: 90mm refractor telescope tube assemblyAperture solar-filter26 mm Super Plössl eyepiece 31,7 mm (1.25")Diagonal mirror 31,7 mm (1.25") Tube clamps with universal 44 mm Dovetail plate (fits LXD75/Great Polaris/EQ5)Smartphone adapter for celestial navigation 6x30 optical finderAstronomy software StellariumRotatable star map

This set contains especially well made, thin preparations, nicely colored and with very fine detail. The use of high quality sample material makes them very useful in school or for amateur microscopists. They are a real joy to look at!The set contains the following slides:DiatomsVolvoxZea Mays Stem c.s.Mouth SmearHuman Sperm SmearMitosis of Animal CellOnion Root TipsFly HeadLily AntherTomato leaf. c.s.

The Researcher Trino offers observing fun for an unbeatable price. Based on a solid metal body and equipped with DIN eyepieces and objectives, this transmission-type microscope fulfils even professional demands with its optical and mechanical quality. Many details, for example the cross table for optimal object positioning or the focuser with coarse and fine drive for dead-sharp images. Instead of a binocular head, the Trino Researcher has a trinocular head. With this equipment, the observer can make binocular obseravtions and - at the same time! - take photographs or use a PC eyepiece Features Type: Biological microscope View: Trinocular Application range: Biology, Education, Teaching, Imaging Solutions, Botany Illumination: LED with dimmer Level: Intermediate, Expert Warranty: 2 years Double-lens condensor with iris diaphragm Incl. mechanical stage Adjustable eye relief Specifications Comfortable binocular view, 360° turnable head Magnifications: 1000x, 400x, 100x, 40x Illumination: LED Eyepieces: 10x Eyepiece diameter: 23.2 mm Objectives: 4x, 10x, 40x, 100x (oil immersion) Power supply: 220/240V Included Accessories 4 DIN-objectives 2 eyepieces Mechanical stage Condensor Trinocular head

Above-average contrast The Reducer HD features the optical coating that was developed by Vixen for our high-end VSD100F3.8 astrograph. The AS coating provides light transmission of up to 99.9% per lens surface. The special matte surface in the interior also minimizes ghosting, light loss and lens flares. Reducer HD in combination with SD telescopes The Reducer HD can be used on telescopes from the SD series (SD81S, SD103S and SD113S) with the SD Flattener HD Kit (item #37246) . The Reducer HD reduces the focal length by a factor of 0.79x (f/7.7 to f/6.1) and delivers a razor sharp image over the entire 44 mm image sensor surface on DSLR cameras. Reducer HD in combination with AX103S and VC200L telescopes In addition to the SD telescopes, the Reducer SD is also compatible with the AX103S and VC200L telescopes. With these telescopes, the focal length is reduced by a factor of 0.77x.FEATURESUp to 99.9% light transmission per lens surfaceReduces the focal length by a factor of 0.79xAlso suitable for full-frame DSLR camerasFor the ED/SD 81S, 103S, 115SAS coating with light transmission of up to 99.9% DELIVERY CONTENTVixen Reducer HDDust caps

The BRESSER 0.75x reduction lens is used to change the image field of a microscope camera. Itallows to zoom in or out. The brightness becomes more intensive, to reduce the exposure time.For trinocular microscopes the adapter allows to adjust the focus to get the same focus for every eyepiece. It is compatible with 23.2 mm eyepiece holders. This adapter is designed for cameras with sensor sizes from 2/3". The connection is made via 1 " C-mount thread.

Capture 4K video with the BRESSER MikroCamII 9MP 4K microscope camera. The video can be up to 30 fps depending on the PC used. The camera uses a global shutter, which captures moving objects without distortion. The big image sensor (14.13 x 7.45mm) captures a big field of view. The high light sensitivity of the Sony® IMX305 CMOS-sensor produces excellent images even when using darkfield or phase contrast.The BRESSER MikroCamLabII software includes a variety of useful functions, e.g. measuring in live mode (optional calibration slide needed), mosaic/stitching, focus stacking (for extended depth of field). All camera parameters (exposure time, gain, white balance) can be set manually.Mosaic and focus stacking can be done in live mode, which gives instant results even for unexperienced users. The method is also much faster than the normal procedure where a set of images is rendered afterwards. To use the mosaic function in live mode, a crosstable / mechanical desk is highly recommended to move the sample.The big camera sensor is not compatible with all microscope models. It might lead  to vignetting (dark edges). To compensate this, a 1.0x optical adapter (item code 5914001) is recommended.This camera will not work with the ETD-201 stereo microscope as the microscope will illuminate only a part of the sensor. For this microscope, we recommend the model MikroCamII 12MP item code 5914912. SPECIFICATIONSmodern Sony® IMX305 sensor 14,13mm x 7,45 mm (1'')8,85 MP resolution (4096x2160 pixels)software included, which contains measuring, focus stacking, mosaic / stitching for results with bigger fields or extended focus depthcapture images and video, incl. slow motion and timelapse4K video with up to 30 fpsbig field of viewPrecisely machined metal housingcompatible with numerous microscope modelswith c-mount connector, which is widely used.Compatible  with c-mount lenses.1/4" connector, for photo tripods, clamps etc.Highspeed USB 3.0 port SYSTEMANFORDERUNGENWindows 10 oder 11Intel i3, i5, i7 oder i9 Prozessor ab 6. Generation bzw.AMD Ryzen ProzessorOptisches Laufwerk oder Internetverbindung für SoftwaredownloadUSB 3.0, 3.1 SCOPE OF DELIVERYcamera bodyUSB 3.0 cable3 adapters: 23.2mm  30.0 mm and 30.5 mmsoftware CD (Windows)

BRESSER Planachromat 20x - this DIN-Objectives are processed with the highest quality materials to enhance the image replication.Plan correction minimizes refocus between center and edge of field and is especially useful for imaging.Fits the following models:• Erudit DLX (5102000, 5102060)• Researcher Bino (5722100)• Researcher Trino(5723100)• Science TRM 301 (5760100)• BioScience Trino (5750600)• Science ADL 601 P (5770200) only for observations with transmitted illumination• Science MPO 401 (5780000)Not recommended for models Erudit Basic Mono and Bino (5102100, 5102200) and Erudit MO (5110000) as those have a different parfocal length.