Bahtinov Mask Focusing Mask for Telescopes - FM200mm for a Tube Outer Diameter (OD) from 215mm-260mm
The Bahtinov mask has become the preferred method of focusing a telescope, either visually or when imaging with a CCD camera, DSLR or webcam. They are an inexpensive tool which will allow you to achieve pin-sharp levels of focus, saving you time and improving your work. Simply place the mask over the front of your scope, align the scope towards a star. The mask displays a unique diffraction profile; one part of the diffraction pattern moves in response to changes in focus and displays error as a displacement from a clearly defined point. Whether youre doing planetary visual observing, planetary imaging, or deep sky imaging, the Bahtinov Mask is a great accessory to get the best focus for your telescope quickly and easily. These high quality Bahtinov masks are adjustable to fit a wide range of optical tubes, unlike masks which are only able to fit one telescope. The masks grip the telescope tube gently but firmly with three metal posts which have non-scratching silicon sleeves to protect you valued telescope surface. This prevents slippage, whilst allowing the mask to remaining perfectly central. Because of this 3-post mounting, the mask remains centered, whilst fitting a wider range of telescopes. There is a myth about different Bahtinov grating pattern is required for different focal length telescopes. There is no real practical reason for the use of special patterns for different telescope types and focal lengths. In fact, the frequency and angle of Bahtinov mask patterns arent really that important. The diffraction effect is so sensitive to changes in focus, that the results are excellent regardless. Please be assured that these focusing masks will work excellently for both reflectors and refractors with whatever focal length. All you need to do is to measure your telescope tube size and choose the right size of the mask.
2 Inch to 125 Inch Telescope Eyepiece Adapter
Color: 0.965 to 1.25 InchThis is a very high quality anodized aluminum adapter that has filter threads at the bottom for 0.965" telescope filters? It also has an internal brass ring that the set screw hits to hold your 1.25" eyepiece inside? This eliminates marks on your eyepiece barrel? Nice large thumbscrew that is easy to turn even in very cold conditions or with gloves on?
Astronomical T2Extension Tube Kit for Cameras and eyepieces Length 5mm 8mm 10mm 40mm M42x075 on Both Sides
Sometimes you cannot get to the right focal plane for focusing with a camera or eyepiece. This extension tube kit solves this problem. You can use this extender with any camera or eyepiece or with various adapters. The M42* 0.75 threads on both ends make it extremely versatile. Use this extender for obtaining the correct image scale or for the exact spacing required for a reducer or field flattener. You can reach the extension length required by combining several extenders of different lengths.
Stage TMO2B Microphone Table Mount (Black)
Color: BlackPerfect for a variety of applications - mount a microphone or mic boom arm permanently to a desk or table top, amplifier, wall or podium. Tired of mic'ing your amplifier with a mic stand that just gets in the way when you play? Use this microphone mount to secure a boom arm to your amplifier so you never need another stand, an advantage for touring musicians who never know what situatithey'll end up in from venue to venue. Use this stand mount with a gooseneck and you have an excellent podium mic for church services or other meeting halls. This mount can also be used effectively for a desktop mic mount for the many people out there who are podcasting the web from their home PC. Stage Microphone Table Mount Features: 5/8 inch flange with base holes, 1 1/4 inch mounting centers, Available in Black or Chrome.
IEEE 1284 AB Parallel Printer Cable DB25 to Cen36 MM 6ftP606006
s 6-ft. Ieee 1284 A-B gold parallel printer cable connects computers with a DB25 female parallel port to parallel printers with a Centronics 36 female parallel port. It supports high-speed IEEE 1284 Bi-Directional communication. The cable Features gold plated DB25 male/Cent36 male connectors and gold plated copper contacts for superior conductivity. It is manufactured from superior molded cable with integral strain relief and double shielding for maximum EMI/RFI protection. It contains low-capacitance, impedance matched, twisted-pair conductors that protect against cross-talk and other transmission problems. warrants this product to be free from defects in materials and workmanship for life. /P
FSV2442 32ch 5G8 Race Band Receiver Module
32 channel, 5.8G hz receiver module for modular equipped goggles (Attitude V3, Dominator series goggles).
Security Camera System Wireless, 8CH 1080P NVR Camera System with 1TB Hard Drive,6 IP Security Cameras 2.0MP with Night Vision Waterproof, Plug n Play
**********[True Plug-Play]: Wireless Security Cameras and NVR Are Paird Before Shipping, Simply Connect NVR and Cameras to power outlet by provided adapters, picture Shows Up Immediately. No Need to Run Video Cables All Around Your House. No Interference to Your Home Network. *****[VIDEO SECURITY CAMERA SYSTEM]: With Most Advanced Data Compression Technology And Overwrite Function (loop video), Maximize The Use of Hard Drive. 1TB Hard Drive Can Keep More Than 20days 24/7 Continue Recording from 4 Cameras Before Looping. Recording Plan Can Be Customized Based on Your Own Schedule. *****[REMOTE ACCESS]: By Connecting NVR to WAN Router, Free APP and PC-Client Software Can Be Downloaded To Remote View From Your Phone, Tablet, Windows PC and MAC Anywhere Anytime. Motion alert can be sent by App or Email Once Motion Being Detected*****[OUTDOOR SECURITY CAMERA SYSTM]: Equipped with 1080P 8 Channel NVR(1TB Hard Drive Pre-installed), 4pcs 960P IP66 Weatherproof Security Camera, Suitable For All-
Pink Pig Silicone Pot Clip Spoon Rest, 2.25-Inches, Cooking Utensil Holder,6480
Style Name: Pig Need a hand in the kitchen? This cute pig is ready to help! Made of heat-resistant silicone, this Pot Clip/Spoon Holder puts the fun in functional. It features an adorable, colorful pig design, which will add charm and character to your kitchen. To use, simply attach to the edge of your pot or pan, and it's ready to hold your messy spoon. A perfect way to keep your mixing spoon at easy access and keep messes off of your countertops and stovetop! Less cleaning, means more time enjoying. Let this little piggy be your helping hand, she does her job without complaintsitting on the edge of your pot while you work, holding your spoon until youre ready to stir.
Swami 6000 Golf GPS Blue
***** **********Best Quality Guranteed. *****Preloaded with over 38, 000 global course maps; no subscription fees & free updates*****Accurate distances to Front, Center, Back of green; Layup and Carry distances to hazards and doglegs*****Auto course recognition, Auto hole-advance, Individual shot distance measurement*****Integrated magnet for attaching to cart frame for handsfree and eye-level viewing during the round*****Digital scorekeeper; save round scores*****Large, vibrant 2" color display; easy to read and operate*****Included Components: Quick Start guide
X1S Condenser Microphone
**********Inexpensive large diaphragm condenser Two attenuation and two filter switches Gold-plated XLR connector High dynamic range and sPL handling Low self-noise*****The X1S is a refined version of sE's best-selling X1, tuned for advanced performance*****With the highest dynamic range and SPL handling capabilities in its class, along with expanded features that dramatically increaits flexibility, the X1 S has been improved in every way relative to the original, even in terms of its affordability*****Just like its predecessor, the X1 S utilizes a hand-made condenser capsule, meticulously constructed and tuned in sEs capsule room by technicians with decades of experience
Antenna Compatible with Ford F150 20092020 | 9 inches Rubber Antenna Replacement | Designed for Optimized FMAM Reception
Size: 9" & nbsp; | & nbsp; Color: Ford F150Fit for: Ford Raptor F150 2009-2020Material: Ultra Conductive Metal Cord Coated with Automotive Grade RubberPackage Include: 1 x Antenna Mast1 x Antenna Stud
ClearStream 2V TV Antenna 60+ Mile Range UHFVHF Multidirectional Indoor Attic Outdoor Mast wPivoting BaseHardware Adjustable Clamp Sealing Pads 4K Rea
Style: 60 MileThe ClearStream 2V antenna uses patented technology to receive TV signals 60 miles away from broadcast towers. Rated 4.5 stars, this antenna is ideal for suburban and rural areas where heavy foliage or roofing materials reduce the incoming signal. Dedicated UHF and VHF multi-directional elements deliver range and reception in less than ideal locations. No other antenna can match its performance in such a compact form.
Electronics 506653WHKIT Recessed TV Cable Media Organizer Kit with Duplex Power Receptacle
Style: Kit with Duplex Power ReceptacleDatacom Electronics' 50-6653-WH-KIT Recessed TV Cable & Media Organizer Kit with Duplex Power Receptacle is designed to streamline power and cable management behind your HDTV. The box features a side cover plate with knockouts for conduit or tube making it ideal for rough-in applications while allowing your TV or other display to be mounted flush to the wall.
Security Camera 1080P WiFi Camera Wireless Surveillance Cameras PIR Smart Motion Detection IP Camera with IP66 Waterproof IR Night Vision Activity Ale
***** **********Best Quality Guranteed. *****Smart PIR Motion Detection & ALERT: surveillance camera wireless Smart PIR sensor detects motion by temperature, never again receive thousands of false alarm caused by raining, snowing or Mosquito etc. Instant notification will be sent to your mobile phone when motion detected, motion recording and real-time motion alert via APP, upload snapshots and videos, motion sensibility adjustment, accurate and smart motion detection less false alarm. *****FHD 1080P & Night Vision: High resolution images in 1080p resolution, and combined a 3.6 mm wide lens to cover more spaces clearly even in the pitch dark with a night vision distance up to 32ft. *****Two-Way Audio: outside wireless cameras security allows you to communicate with welcomed guests, and deterrent alarm can get rid of unwanted guests. Store all of your 24/7 recorded security surveillance footage from our camera use a Micro SD card (Max 128GB). *****COMPATIABLE WITH WIFI: wireless securit
Standard Protective Waterproof Dive Housing Case for GoPro Hero 4 Hero 3+ Hero 3 Black Silver Camera 40 Meters 131 Feet Underwater Photography
***** **********Best Quality Guranteed. *****Compatible with GoPro Hero 4 3+ 3 Silver and Black edition cameras. *****Waterproof up to 131' (40m), offer reliable protection for sea diving and extreme activities. *****Large Flat glass lens delivers maximum image sharpness above and below water. *****The metal part on the screw and buckle is made of 316 stainless steel, which is rustproof in seawater. The lens is made of high quality transparent glass and installed professionally which provide you a good shooting experience. *****Made of high quality and lightweight materials, sturdy and durable.
10Pcs 3.5mm Stereo TRRS Audio Video Male / Female to 4 Screw Terminal Balun Converter Adapter Connectors
Package Included Male to 4-Screw Video Balun Terminal Adapter Connector x 5pcs Female to 4-Screw Video Balun Terminal Adapter Connector x 5pcs These male and female terminal-block audio connectors are matched well, mainly used for microphone plug, earphone plug, can also be used for CCTV camera applications
