EXPLORE SCIENTIFIC Dark-Sky Filter 77mm Slim

L-eNhance Filter for deep sky nebula photography from the cityThe relentless spread or urbanization and its associated light pollution have become a growing problem for all amateur astro photographers. The current solutions to the problem can be expensive and might include the purchase of a monochrome camera, several types of narrowband filters and a filter wheel. Especially with inexpensive newtonian telescopes, double-lens ED refractors or even achromats, the L-eNhance filters open up completely new possibilities for the capture of high-class astronomical images even out of the light polluted city. CMOS cameras can deliver images like monochrome cameras. This new generation of filters makes it possible to take amazing astrophotos directly from the light-polluted city with all its artificial light sources. The narrow bandpass for the wavelengths of O-III, H-Beta and H-Alpha and the almost complete attenuation of the interfering light sources of these new filters make this an ideal solution. L-eNhance Description  L-eNhance provides an economical and practical solution for amateurs. It is a tri-band pass filter which has been designed for DSLR (digital SLR), color CMOS and monochrome CCD cameras. The convenience and cost-effectiveness of this filter allows amateurs to take a rich selection of astronomical images, even in bright, heavily light-polluted areas. We believe the design of our L-eNhance filter is a technical innovation among filters. It effectively isolates the H-Alpha, H-Beta, and Oxygen III nebula emission lines and achieves a maximum transmission of up to 90%. The performance of this filter delivers images that superbly control the impact from light polluted skies.  Main Use and PerformanceThis new generation of filters makes it possible to take amazing astrophotos directly from the light-polluted city with all its artificial light sources. The narrow bandpass for the wavelengths of O-III, H-Beta and H-Alpha and the almost complete attenuation of the interfering light sources do not require very large or extremely expensive telescopes. No, especially with inexpensive newtonian telescopes, double-lens ED refractors or even achromats, these filters open up completely new possibilities for high-class astronomical images. Furthermore, with the help of these filters, CMOS colour cameras can deliver an image quality that comes close to CCD monochrome cameras. WARNING: These nebula filters are not designed for sun observation. DO NOT LOOK AT THE SUN WITH THIS FILTER. You will go BLIND if you ignore this warning. Coating technology L-eNhance has a multiple anti-reflective coating on the optical substrate. The L-eNhance filter uses a precision coating based on ion deposition coating technology. This ensures durability and scratch resistance as well as stability on the CWL (central wavelength), which is not affected by temperature changes. Absolute precision and homogeneity of the coatings as well as maximum values for transmission in the passband and optical density in the off-band range are guaranteed for all filters. FEATURES Professional photographic filter for astronomy Improves deep sky emission nebula photography Best choice for enhanced light pollution suppression For taking pictures also from highly light polluted areas Tri-band filter with high transmission for O-III, H-Beta and H-Alpha linesDoes not require very large or extremely expensive telescopesExcellent results also with inexpensive newtonian telescopes, double-lens ED refractors or even achromatsCMOS colour cameras can deliver an image quality that comes close to CCD monochrome cameras Balanced colour for a natural image Filter diameter: 1.25 inch / 31.7mm Connecting thread: M28,5 x 0,6mm (Eyepiece thread 1.25 inch)Selected optical glass material Spectrum: 300-1000nm Off-Band Blocking: > 99% Surface Quality: 60/40 (Refer to MIL-O-13830) Fine-optically polished to ensure accurate 1/4 wavefront and highest parallelism over the both surfacesHigh transmission at major nebula emission lines (i.e. H-alpha 656nm, OIII 496nm&500nm and H-beta 486nm). SCOPE OF DELIVERY L-eNhance filter (1pc) Dust protection box (1pc)

The optics of the VMC260L surpass the traditional Schmidt-Cassegrain and this tube is only 650 mm in length, despite its long focal length of 3000 mm . With its large aperture of 260 mm , the telescope collects light for serious professional observations and photography of the planets, as well as countless deep-sky objects. The dielectrically coated mirrors of the VMV260L guarantee high sharpness and maximum brightness. Thanks to the open tube, this instrument cools down faster than conventional closed Cassegrain systems, and (having no front corrector plate) is not as prone to dewing issues either.An optional 0.62x focal reducer is available for expansion to reduce the focal ratio to 1: 7.1. This results in a shortening of the exposure times and the increasing the field of view, thus increasing the ability to photograph larger objects in the sky. Included accessories feature a finder, dovetail rail and a handle that assists considerably when mounting and de-mounting the scope and can also be used as a camera holder for star field recordings.CHARACTERISTICSAperture: 260 mm precision spherical mirror, multi-coatedLight gathering power: 1380xAdapter and connections: 60 mm on the focuser; 42 mm for T-mount and 31.7 mm with folding mirror; 50.8mm optionPhotography: primary focus and eyepiece projectionWHAT'S INCLUDEDVMC260L reflectorDovetail rail (3 inch for AXD)AXD SaddleplateCarrying handleFinderscope 7x50Flip mirror

Besides air turbulence, the brightening of the night sky is the biggest obstacle to observing faint objects beyond the solar system. Street lamps and other artificial lighting mean that the sky in human settlements is no longer really black. This affects the contrast and thus the perception of deep-sky objects. Depending on the type of celestial object, however, part of disturbing artificial light can be filtered out, making it easier to observe fainter targets.The EXPLORE SCIENTIFIC CITY LIGHT SUPRESSION - or CLS - filter uses the fact that the artificial lighting is not evenly distributed over the entire spectrum. These colours - in the case of the EXPLORE SCIENTIFIC CLS nebula filter, above all the typical colours of mercury and high-pressure lamps, used in street lighting - are suppressed, but the emissions of deep-sky objects are allowed through. With a slightly brightened sky, some relatively bright deep-sky objects are practically invisible with a telescope, for example the large galaxy M101. Using this filter makes observation much easier. A must have for any visual amateur astronomer.  The CLS can also be used as a useful photographic filter - helping to improve the quality of your telescopic deep sky photos.The EXPLORE SCIENTIFIC nebula filters are delivered with an individual test report - so you can be sure of receiving high-quality filters.SPECIFICATIONS:eliminates disturbing light - e.g. from street lightingenables observation of faint deep sky objectsWHAT'S INCLUDED:1x nebula filter

With the NATIONAL GEOGRAPHIC 4K Ultra-HD 60fps WIFI Action Cam Explorer 7, your videos and photos really take off. Whether it's mountain biking, skating, or skiing – it captures everything that comes into the view of the 170° wide-angle lens in breathtaking images and high-detail videos at up to 60fps. The right mount and setup for every situation is already included – ensuring a secure fit on helmets, bikes, belts, and more. The action cam with image stabilization always ensures the right balance for ultra-high-definition videos and photos with up to 30 MP image resolution (interpolated). Heading on vacation to dive into the sea? No problem: the action cam is waterproof up to 10 m – without an extra case. Perfect for snorkeling and surfing!Dual display for optimal controlThe camera features two displays: a 2.0-inch touchscreen for easy and intuitive operation, and a 1.5-inch front display so that even during the most daring maneuvers with selfie sticks and more (not included), you can always stay in control.The Explorer 7 – an action cam with stamina When it comes to unforgettable experiences, we want to capture every second. That's why this small camera, especially when used with a 128 GB Micro-SD memory card (not included), shows remarkable endurance. Of course, cards with less storage capacity also fit. Review, transfer, and share with the Action Camera Explorer 7 All videos shot and enough snapshots taken? Then check the results right on the 2-inch color display (5.08 cm). Back at home, you can dive into the details. Thanks to the WIFI function, your memories can be transferred quickly and easily to your phone or tablet – ready to view and share. By the way, via WIFI, you can also conveniently control the Action Cam via an app on your mobile device.Impress your friends, family, and followers – with the NATIONAL GEOGRAPHIC 4K Ultra-HD 60fps WIFI Action Cam Explorer 7. FEATURES Action Cam with 4K resolution WIFI functionIncludes Bluetooth remote/microphone High-resolution 2'' touchscreen (5.08 cm) on the back1.5” front display 170° wide-angle lens (fisheye) Aperture: F=2.5 mm Waterproof up to 10 m without extra case Electronic image stabilization Image resolution: 30 MP (interpolated) /20 MP/16 MP/14 MP/12 MP/8 MP/5 MP Image format: .JPG Video resolution: 4K 30 fps (EIS)/4K 60 fps (EIS)/30 fps (EIS)/2.7K 60 fps (EIS)/30 fps (EIS)/2K 30 fps (vertical 9:16)/1080P 60 fps (vertical 9:16) /120 fps/60 fps (EIS)/30 fps (EIS) 720P 240 fps/120 fps/60 fps (EIS) Video format: .MOV Camera sensor: Sony IMX376 24.8 MP 1/2.78“ Chipset: Sunplus i-catch V35AX Storage: Micro-SD memory card up to 128 GB (not included) Shooting modes: Single shot / Loop recording / Time-lapse / Duration time-lapse / Burst mode / Self-timer Interfaces: USB-C, Micro-SD card slot SCOPE OF DELIVERY4K waterproof action camera Camera case Belt mount Bike mount Wing screws Base connector Multi-function connector Base mount for flat surfaces and adhesive pads USB cable ¼-inch tripod adapter (male/female) Straps 1 rechargeable 9000-mAh battery

This compact and handy body enable the BRESSER Hunter 16x50 Binoculars to be the perfect companion on just about any outdoor activity. The fully coated optics and its solid mechanics enable a true colour picture replication. The convenient proportion between objective aperture and magnification makes observations during dawn phases possible. Diopter adjustment and foldable rubberized eyecups are included. The handy and touch-proofed surface of the BRESSER Hunter 16x50 provides a comfortable grip. The tripod connection is standardized for these models.FEATURESType: Standard binocularsApplication range: Sports, Nature, HikingPrism glass: BK-7Focus type: CenterExtras: Tripod adapter thread, Rubber armouringColour: blackPrism and lens materials made of BaK-7 glass materialOptical surfaces are blue fully coated Centre-wheel focusingIndividual eyepiece dioptre adjustmentTripod adapter threadRobust, rubber armoured binocular body SCOPE OF DELIVERYBinocularsNylon bagCarrying strapProtective lens capsProtective eyepiece caps

These eyepieces with their huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods. These ultra-wide angle eyepieces played a critical role in the military for aiming at targets, and their long eye-relief counterparts helped reduce eye injury from recoil. Each 100° Series Nitrogen-Purged Waterproof eyepiece is internally sealed and purged with inert, dry nitrogen gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus, and to maximize the life of the internal coatings. To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes. All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.

The Vixen white tube ring pair is designed to support telescopes. The inner sides feature a felt coating to prevent your telescope from getting scratched. The tube rings can be used with the following telescopes: A80M, A80Mf, ED81S and SD81S.FEATURES Vixen SX 90 mm tube ring pair, white Felt-lined interior Compatible telescopes: A80M, A80Mf, ED81S and SD81S Weight: 350 g DELIVERY CONTENT Vixen SX 90 mm tube ring pair, white Mounting screws