Mirror Lens Mount Looking for Cheap Tracking Mount for Olympus DSLR for Star Gazing?
I'm looking for a cheap mount that will track stellar objects for me so I can take long exposure photos with my Olympus Evolt E-410 DSLR with 500mm Mirror and/or 500mm telephoto lens. Please help!
Cipa Tri Lens Ski Mirror . 4" x 12" convex tri-lens mirror is designed specifically for recreational boating. Middle mirror is stationary. Two side mirrors can be adjusted for enhanced field of vision. Universal, quick-mount design allows for fast, easy installation.
Lens for Nikon Mount is of highest optical qualityPowerful Rokinon mirror lens comes with a faster F stop than most mirror lensesTake beautiful sports and wildlife photos with the Rokinon 500mm f/6.3 mirror lensNew Black Diamond colorIncludes lens cap and caseCamera accessory ideal for everyday useLens includes a Nikon T-Mount adapter to attach it to all Nikon cameras Compatible with all Nikon digital SLR cameras Aperture is F6.3 fixedOptical construction with seven elements in six groups Angle of view is five degrees Manual focus typeMinimum focusing distance is 6.1 feet Front filter size is 95mmLens measures 4.7 inches long x 3.86 inches maximum diameter Model number ED500M-B1 + T2-AI
500 mm ultra-telephoto, multi-coated mirror lens is incredibly compact and lightweightAdvanced reflex design makes lens perfect for wildlife and sports photographyLets you take incredibly close shots from long range distancesCamera lens mounts to all Nikon SLR and digital SLR cameras with the included t-mount adapterSimply attach t-mount adapter to your camera, then attach the lens to the adapter and you're ready to goLightweight camera lens only weighs 12.7 ouncesLens construction: 7 elements in 6 groupsAngle of view: 5 degreesMinimum focusing distance: 5.6 feetFocus modes: manual focusFilter size (rear): 30.5 mmFilter size (front): 72 mmFixed aperture: f/8Macro magnification: 1:2.7T-mount adapter required and includedIncludes ND-2X, ND-4X and Skylight rear-mount filtersComes with a case and instruction manualMeasures 3.4 inches long x 3 inches in diameter
Mirror lens for Pentax mount is of highest optical qualityLens is multi-coated and provides crisp, clear and sharp telephoto picturesHigh-definition telephoto lens is ideal for sports and wildlife photography New Black Diamond colorIncludes lens cap and case Aperture is F8.0 fixed T-mount (Included for Pentax) Optical construction with eight elements in eight groups Angle of view is three degrees Minimum focusing distance is 11 feet Front filter size is 105mmRear filter size is 30.5mmDimensions: 111mm in diameter x 5.7 inches longModel number 800M-B1 + T2-PK
Rokinon 800mm F/8.0 Mirror Lens for Nikon Mount is of highest optical qualityLens is multi-coated and provides crisp, clear, and sharp telephoto picturesRokinon high definition telephoto accessory is ideal for sports and wildlife photography Aperture: F8.0 Fixed Optical construction: Eight elements in eight groups Angle of view: 3 degrees Minimum focusing distance: 11 feet Filter size: Front=105mm Rear=30.5mm Length: 144.5mm(Max) Maximum Diameter: 111.0mm Weight: 2 pounds Mount: T-Mount (included for Canon EOS) Lens coating: Multi coated]
The Rokinon 500mm f/8.0 Multi-Coated Mirror Lens is incredibly powerful. It's an excellent addition to any photographer's collection. This lens is a high-quality, computer designed product that incorporates the merits of both reflex optics and refraction optics. This combination provides the user with an extremely sharp picture with minimum color abberation. With its tremendous power, this lens is ideally suited for wildlife and sports photography. Multi-coated high definition optics and an integrated lens hood combine to maintain maximum contrast with reduced glare and reflections. It produces sharper, more intense pictures. Take incredibly close shots from long range distances. While this lens is designed for high definition telephoto photography, it is also one of the most affordable precision optics available, which allows anyone on any budget to enjoy shooting crisp, clear pictures. Aluminum alloy construction provides for a lightweight and rugged design that includes a rotating tripod mount, for balance and stability when mounted on a tripod or monopod. Comes in a beautiful Diamond Black body finish.
Manual focus mirror lens is an ultra-telephoto lensExtremely compact and lightweight for its focal lengthThis lens is ideally suited for outdoor photographyIt has a fixed aperture of f/8Includes the Nikon T-Mount
Manual focus mirror lens is an ultra-telephoto lensExtremely compact and lightweight for its focal lengthThis lens is ideally suited for outdoor photographyIt has a fixed aperture of f/8Includes the Canon T-Mount
Rokinon 800mm F/8.0 Mirror Lens for Canon EOS Mount is of highest optical qualityLens is multi-coated and provides crisp, clear, and sharp telephoto picturesRokinon high definition telephoto lens is ideal for sports and wildlife photographyAperture: F8.0 FixedOptical construction: Eight elements in eight groups Angle of view: 3 degrees Minimum focusing distance: 11 feet Filter size: Front= 105mm Rear=30.5mm Length: 144.5mm (Max) Maximum diameter: 111mm Weight: 2 pounds Mount: T-Mount (Included for Canon EOS) Lens coating: Multi coated
Rokinon ultra-telephoto, multi-coated mirror lens is incredibly compact and lightweightLens is ideally suited for sports, nature and wildlife photographyPhoto accessory has a powerful focal length of 800mmFeatures a fixed aperture of f/8T-mount adaptor for Olympus/Panasonic is included to attach the lens to your cameraPackage includes lens case and lens capFeatures:Lens construction: 8 elements in 8 groupsDimensions: 5.7 inches long x 4.4 inches in diameterFront filter size: 105mmRear Filter Size: 30.5mmMinimum focusing distance: 11 feetFixed aperture: F/ 8Focus type: ManualWeight: 2 pounds
Equip yourself for the outdoors with this powerful Rokinon mirror lens Perfect for camping and hunting, this mirror lens comes with a new faster F stop Ideally suited for sports and wildlife photography, this lens can also be used for everyday use Lens includes a Nikon T-Mount adapterCompatible with all Nikon digital SLR camerasAperture Range: F6.3 fixedOptical construction: 7 elements in 6 groupsAngle of view: 5 degreesLens type: manualMinimum focusing distance: 6.1 feetFront filter size: 95 mmLength: 4.7 inchesMaximum diameter: 3.86 inchesWeight: 24.9 ounces Lens coating: multi-coatedT-mount adapter required and included
Equip yourself for the outdoors with this powerful Rokinon mirror lens Perfect for camping and hunting, this mirror lens comes with a new faster F stop Ideally suited for sports and wildlife photography, this lens can also be used for everyday use Lens includes a Sony Alpha/Minolta T-Mount adapterCompatible with all Sony Alpha and Minolta digital SLR camerasAperture Range: F6.3 fixedOptical construction: 7 elements in 6 groupsAngle of view: 5 degreesLens type: manualMinimum focusing distance: 6.1 feetFront filter size: 95 mmLength: 4.7 inchesMaximum diameter: 3.86 inchesWeight: 24.9 ounces Lens coating: multi-coatedT-mount adapter required and included
Equip yourself for the outdoors with this powerful Rokinon mirror lens Perfect for camping and hunting, this mirror lens comes with a new faster F stop Ideally suited for sports and wildlife photography, this lens can also be used for everyday use Lens includes a Pentax PK T-Mount adapterCompatible with all Pentax digital SLR camerasAperture Range: F6.3 fixedOptical construction: 7 elements in 6 groupsAngle of view: 5 degreesLens type: manualMinimum focusing distance: 6.1 feetFront filter size: 95 mmLength: 4.7 inchesMaximum diameter: 3.86 inchesWeight: 24.9 ounces Lens coating: multi-coatedT-mount adapter required and included
Lighted magnifier lamps with a 5X desk magnifying optical lens. Lamp magnifiers are white and have a goose neck arm on a flat base of the desk magnifier lamp. Illuminated light has an on off switch on base, and the glass lens is 3...
Designed for double duty, the Broan Ceiling-Mount Ventilation Fan with Light removes stale, humid air and brightens your room at the same time. Broan ceiling-mounted fan/light combos are available in a variety of sizes and shapes, so you'll be sure to find the perfect fixture for your home...
Kichler 5371 Pocelona, Bath and Vanity 100-W. Max. (M) Width 36" , Height 24" , Extension 9" . Height from center of wall opening 2-1/2" . Back plate size: 4-3/4" x 7" . U.L. listed for damp location. TheKichler Bath and Vanity Collections bring an exciting new dimension to bathroom lighting...
This is a great travel mirror! Mount with suction cups on a smooth surface or permanently attach anywhere with magnetic metal base provided for hands free use. Can also be mounted directly on to a metal locker by magnet inside housing...
IDEAL FOR CRAFTS HOBBIES OR DETAILED WORKHANDS-FREE OPERATION2X MAGNIFIER WITH A 3X FLIP-DOWN LENSADJUSTABLE HEADBANDUPC : 750668004086Shipping Dimensions : 11.05in X 8.55in X 3.50inEstimated Shipping Weight : 1...
Personalize and protect your HTC phone with this two peice cover case, made for the T-Mobile myTouch 4G. This case cover prevents scratches, chips and fingerprints from accumulating on your mobile phone...
Personalize and protect your HTC phone with this two peice cover case, made for the T-Mobile myTouch 4G. This case cover prevents scratches, chips and fingerprints from accumulating on your mobile phone...
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Lightweight and portable, the Carson MM-200 MicroMax pocket microscope is ideal for on-the-go science. The MicroMax offers a powerful 60 to 100x magnification range, making it easy to examine blood samples, bugs, and anything else that's worthy of a closer look...
SCREEN FEATURES:3.5" SLIM TFT LCD STAND MONITORAUTOMATICALLY SWITCHES ON WHEN REVERSINGPAL/NTSC COMPATIBLEAUTO SWITCHINGBRIGHTNESS: 200 CD/M2CONTRAST RATIO: 200:12 VIDEO INPUTSDIM: 3.7"W X 3.3"H X .67"D;CAMERA FEATURES:PAL/NTSC COMPATIBLE380 TV LINES RESOLUTION X 60 FIELDSIMAGE SENSOR: OV7910 COLOR CMOSLENS: 6MM 92 NIGHT VISIONBACKUP CAMERALOW LIGHT ILLUMINATION: 1...
3.5'' TFT LCD stand monitor 2 video inputs NTSC system Brightness: 200 cd/m2 Contrast: 200:1 Universal mount Backup CMD camera 1/3'' Water proof/night vision Distance scale line camera 17' male to male RCA video cable Image sensors: 580 x 540 Resolution: 420 TV lines Power supply: DC 12 V
This Tutorial Text examines the various ways in which prisms and small mirrors typically are designed and mounted in optical instruments. It provides analytical tools for evaluating different designs and discusses advantages and disadvantages of various techniques...
Key Features:Aspherical lenses eliminate virtually all distortion _ Quick, smooth central focusing _ Tripod adaptable (with Product #7650) _ Diopter control to regulate vision imbalance _ BaK4 high index prisms _ Precision aligned sharp multicoated optics for bright, clear images _ Standard-size armored bodyThe new Nikon Action Extreme" binoculars feature an all-metal chassis with lens fittings housed in a tough, lightweight polycarbonate body shell...
ViewPoint is an adjustable rear view mirror for a variety of sports. The mirror sticks to the inside of your sunglasses where it's invisible to others. Its tiny 3/8-inch diameter mirror mounts with a ball and socket arrangement so you can use it on a variety of eyewear designs and still find the best viewing angle...
The Celestron(r) 400x Laboratory Biological Microscope comes with many scientific essentials such as a diaphragm and a condenser. Its efficient charm comes in its power and precision, with 3 different objective lenses and a monocular, adjustable head that rotates from 0 to 60 degrees for comfortable viewing.
This tried-and-true refractor goes the extra distance in introducing the novice to the wonders of the night sky. The Observer 70 features a 70mm fully anti-reflection coated achromatic objective lens, which provides 36% more light-gathering ability than a 60mm...
Our Observer 70 is the perfect telescope for that budding astronomer in your family. This scope excels in both quality and performance. Its 70mm multi-coated achromatic objective lens - focal length 700mm focal length (f/10) - gathers 36% more light than a 60mm...
Canon Camera Shutter and Mirror action in slow motion
Camera 500D - A Wonderfully Full-Featured Camera At An Unbeatable Price!
I've had the Camera 500D for about almost week now and after some extensive use, here are my thoughts:
1. 15.1 megapixel sensor. Yes, the high megapixel count is impressive, but keep in mind that, as you approach higher resolutions, you need to ensure the lens on the SLR can resolve that much detail. Sadly, the included 18-55mm IS lens is functional, but the high resolution really shows the so-so quality of the lens. Even if taken at the proper focus, pictures can appear soft with this kit lens. Shots I have taken with Canon EF-S 17-85mm and EF 70-200mm L lenses are crisp. I don't have any gripes on image quality. There are some issues with noise on the higher ISOs that don't seem to show up on the Nikon digitals, but overall, the quality is amazing for the price. Skin tones, textures, colors are reproduced very accurately.
2. Digic 4. The Digic 4 processor appears to process/save the 15 megapixel images in the same time (if not faster) than the Digic III processor on the XSi (even in RAW+Jpg mode). I have also noticed that at higher ISOs, the sensor and the Digic 4 produce images with less overall noise compared with its predecessors.
3. LCD. The 920,000 pixel LCD screen is large (3"), crisp, vibrant and fully visible even in bright sunlight. In comparison, the Canon XSi SLR (which the Camera 500D replaces), also has a 3" LCD, but with 230,000 pixels. The viewing angle is great as well and the LCD can easily be seen nearly 180 degrees around.
4. ISO 12800. Canon and Amazon are correctly identifying that the Camera 500D maxes out at ISO 3200. Some less reputable dealers are listing an ISO 12800, which you should disregard. The ISO 6400 and 12800 settings are expanded ISO settings. The pictures taken on these two settings are ISO 3200 images pushed to ISO 6400 or 12800 by the Digic 4 chip before saving to the memory card. These pictures are extremely grainy and contain a lot of noise to the point of only being usable as for snapshots or adding an artistic effect to certain compositions.
5. Penta-mirror. That Canon is still using one in the Camera 500D is disappointing. The penta-mirror viewfinder image is functional, but still noticeably darker than that of the penta-prism viewfinder in the Nikon D90 (which is the Camera 500D's main competitor). I really would have preferred if Canon had kept the XSi's 12.2 megapixel sensor, forgone 1080p video altogether, and maybe upped the cost of the camera slightly to cover the production cost of using a penta-prism in the Camera 500D. Honestly, unless you are massively cropping your images, or creating large photos, the difference between 12.2 and 15.1 megapixels really is negligible.
6. Size. This is the same body as the XSi, and therefore a bit on the smaller side compared to other digital SLRs. I have small hands, so the Camera 500D is comfortable for me. If you have big hands, I can see this being a very difficult camera to use over an extended period of time. If you haven't handled a Canon XT, XTi or XSi, I would suggest you go to a store and hold the Camera 500D yourself before purchasing it online. (I will upload a picture of the Camera 500D in my hands to the user gallery for a size reference.) 7. HD Video. Yes, the Canon marketing department made a horrible marketing decision and pushed the Camera 500D onto shelves limiting the 1080p recording to 20fps (frames per second). Recognize this as a marketing gimmick that allows them put a 1080p sticker on the camera box. The 1080p @ 20fps is fine most times, but seems a choppy if you have a lot of action in the frame or are panning quickly. The Camera 500D's 720p video is recorded at 30fps and is clean, smooth, and sufficient for all but the most discerning consumers. One major criticism though is that the sound is recorded in mono, AND there is NO input for an external microphone.
A lot of pre-production reviews of the Camera 500D criticize its inability to automatically autofocus while recording. I wouldn't put much weight in this criticism, mostly because neither of the other two SLR cameras with HD recording capabilities (Canon 5D Mark II and Nikon D90) can automatically autofocus while recording either. What you can do with the Camera 500D is pan/zoom the lens and then press the AE lock (*) button to make the camera autofocus on the new subject (all while recording). A problem with using the AE lock button to have the camera autofocus is that the microphone for the camera is on the front upper left of the body near the lens mount. Therefore, the lens motor noise is picked up just as much as ambient sounds. Even with my quietest Canon USM (ultasonic motor) lenses, this lens motor sound is pretty loud in video playback. Although, remember, you can always manually turn the focusing ring on the lens to get your subject back into focus. It's not easy, but after a little practice, it's not all too hard, either.
Ultimately, you shouldn't let the HD recording limitations sway you one way or the other. This is an SLR camera -- not a video camera. The HD video is a great feature, but if you're looking for something primarily to take video, look elsewhere. There are much better, cheaper VIDEO cameras out there which can record true 1080p.
8. Record button. For some reason, the record video button is next to the LCD screen (the same button used for direct printing). The first few times you take video, you'll intuitively find yourself using the shutter release button used to take pictures. The reason for this switch is that you can take a still picture while recording video, although, doing so will interrupt the recording.
9. Battery life. My first fully charged battery only lasted about 250 shots (no flash), but all charges since have given me in the range of 500-700 shots per charge. I'm guessing the first charge had such a short life because I spent quite a bit of time learning the camera, its menus, and settings.
10. Live View. I honestly can't review this as I haven't used it too much yet -- I prefer using the viewfinder. One feature I can say is nice is that, on the LCD, you can digitally zoom in (up to 10x) on a section of your shot to ensure it is properly focused. This, and the fine focusing, can really help if you're into macro-photography.
11. HDMI cable. The Camera 500D has an HDMI Type C output on the body to allow you to directly display pictures and video on an HDTV. A minor criticism is that the HDMI Type C cable is not included in the box. You have to buy it separately. It would have been nice if it were included, as it's not an expensive cable.
Conclusion. The Camera 500D is a bit on the light end, yet the construction still feels solid. For the camera's price point, you'd be hard pressed to find any digital SLR out there which gives you all the capabilities and growth range of the Canon Camera 500D. The camera is intuitive enough for those new to photography to pick and learn easily, yet configurable enough for advanced amateurs. If video is not a big deal for you, then get the Canon XSi.
There is very little the Camera 500D has (other than ISO 3200 and a sharper screen) that the XSi doesn't. Plus, with the release of the Camera 500D, you can probably pick up a used XSi for a great price on eBay. My wife recently gave birth, and I'm not looking to record endless (never to be watched) tapes of video footage of our son, but I do want several minute clips of him as he grows through the years. I've always been more inclined towards photography, so this camera gives me a very versatile digital SLR that I need with the wonderful capability of recording HD video that I want.
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