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The Baader Laser Collimator has a precision-etched reticule featuring hundreds of tiny cross-hairs which light up brightly when the reflected laser beam touches them.  Easily visible from any viewing angle.  Even if the optics are off to a large degree, the reflected beam can be traced right through to the reticule and the telescope optics adjusted until the beam falls back on itself.

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Why Use LEDs for Photos?LEDs can provide continuous light, as opposed to the off-and-on flashes of strobe lighting. For photography and videography, choose continuous light when you need to mimic certain types of illumination sources, or you need to see the result of composition before shooting an image. LEDs convert 90 percent of their energy into light. This makes them not only a cost-effective choice, but environmentally friendly as well. Like the tungsten light kits that are still popular in videography, LEDs come grouped with accessories in LED lighting kits. If you need convenience, some kits are built around battery LED lights.LEDs offer a choice of styles. You can use a small panel on a light stand to highlight a face in a portrait, while larger LED panel lights would provide soft light for a full body image. Single LED lights are too small to light a photo, but used as accents, they could add interest to a picture. How to Use LED Photography LightsEnergy-efficient LEDs are cooler than traditional studio lights. You can place them close to a subject without causing discomfort. You can also use them in spaces that are too small to be safe for lights that run hot. These characteristics make LEDs useful for portrait photography. For drama in your portrait, put a light on either side of your subject. This results in an all-over highlight. If your design calls for only one highlight, place a light on just one side. Use colored LEDs to alter the mood in your photograph. Since LEDs are continuous light, you can move around as you compose a shot, or use a remote camera control. If you're a videographer, this constant light is suitable for action shots. LED lighting provides a convenient and cost-efficient light source for photography and videography. Whether you need just one item or a complete kit, you can find great options at B&H Photo Video.

The Baader Laser Collimator was easy to use , and gives additional confirmation of the collimation provided by the collimation cap . It will be especially useful to tweak the collimation ( if necessary) when the telescope is on the mount at night by small adjustment of the primary mirror screws . I have no issues with this product ..

Note 1: Prior to using a laser you will need to first check/set a Newtonian telescope's secondary mirror using a sight-tube. Fortunately once set it rarely needs further adjustment.

This is the best Budget Laser Collimator I have used. It's not going to break the bank. Most important of all, the collimator fires a single tight round laser dot. I have found it very good when collimating my F5 Newtonians.

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Energy-efficient LEDs are cooler than traditional studio lights. You can place them close to a subject without causing discomfort. You can also use them in spaces that are too small to be safe for lights that run hot. These characteristics make LEDs useful for portrait photography. For drama in your portrait, put a light on either side of your subject. This results in an all-over highlight. If your design calls for only one highlight, place a light on just one side. Use colored LEDs to alter the mood in your photograph. Since LEDs are continuous light, you can move around as you compose a shot, or use a remote camera control. If you're a videographer, this constant light is suitable for action shots.

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LED lighting provides a convenient and cost-efficient light source for photography and videography. Whether you need just one item or a complete kit, you can find great options at B&H Photo Video.

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LEDs offer a choice of styles. You can use a small panel on a light stand to highlight a face in a portrait, while larger LED panel lights would provide soft light for a full body image. Single LED lights are too small to light a photo, but used as accents, they could add interest to a picture.

As best as I have been able to tell, it arrived in good collimation itself (adjusting its rotation in the focuser did not change the location of the dot on the primary mirror), and the results in my images on an F4 scope reveal it is genuinely creating a well collimated setup, as the tolerance at F4 is rather tight.The only way it would be better, is if the laser were a bit brighter, and if the beam were more consistently sharp when showing up on the acryllic screen when it returns from the secondary mirror. Sometimes it shows up as a nice dot and other times it seems rather smudgy. Still, results speak for themselves and it seems to be a very good product.

LEDs can provide continuous light, as opposed to the off-and-on flashes of strobe lighting. For photography and videography, choose continuous light when you need to mimic certain types of illumination sources, or you need to see the result of composition before shooting an image. LEDs convert 90 percent of their energy into light. This makes them not only a cost-effective choice, but environmentally friendly as well. Like the tungsten light kits that are still popular in videography, LEDs come grouped with accessories in LED lighting kits. If you need convenience, some kits are built around battery LED lights.

LED lights can be your best choice for lighting your studio. They're inexpensive, don't put out the amount of heat that other studio lights do, and come in a variety of configurations. Their illumination is similar to natural light, and has the versatile color balance. When tungsten lights or fluorescent lights don't fit the situation or the budget, consider LEDs.

Note 2: For any laser collimator to be effective it needs to be fitted to a well-made focuser. The regular rack-and-pinion style focuser fitted to many beginner/intermediate telescopes lacks precision and rigidity. If in doubt please contact us for advice.

The Baader Laser Collimator is a great peice of kit, well engineered, and make's collumating a breeze. It has been designed well so not to loose columation itself! Only slight negative is that the batteries are very small and will sometimes flip when trying too drop them in toget the right polarity.

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Having struggled with an ordinary Cheshire I decided to try a laser after seeing videos. Adjusting the secondary was a breeze, but due to the flat screen it took two of us to collimate the main mirror on my 12 inch Newtonian. The red dot on the screen was nice and bright and showed up clearly on the centre of the main mirror for the secondary adjustment. With lasers you can make the small adjustments as the locking nuts are tightened and re -check so easily any time. I didn't time it but it felt that the whole job took only a couple of minutes. Brilliant.

Light-emitting diodes are semiconductors that convert electricity to light. Although you might think of this type of light as new technology, an engineer at General Electric invented the first one in 1962. The original lights were red, followed by yellow, green, and blue. White lights debuted in the 1990s. While colored lights had been used only in things such as clocks and traffic lights, white LEDs gained widespread use in photography and video.