![]() ![]() ![]() From the eyepiece view no, I repeat NO false light should reach the eyepiece.You are not even allowed to see the inside tubewall as a result of the baffles. The same as telescope builders did in the forgoing centuries:ġ- Adding baffles in order to prevent extraneus reflected light to reach the eyepiece: result: less misty and more contrast.Ģ- Blackening or flocking the inside tube. There is no way your lens can reach the values you want. What you want is the image of a triplet apochromat.Ī f/5 doublet achromatic lens suffers 9 times more from CA and unsharpness at the edges of the field. So, a f/15 doublet achromat, deeply blackened at the inside and with internal baffles gives acceptable images with some CA. Later on, triplet lenses were used for even more sharpness and CA suppression. In order to give an acceptable image f/15 or so was still necessary. (less milky or misty images)ĭollond made the first commercial achromatic doublet lenses, what meant that only two colors were more or less united in one focuspoint. In order to prevent all incident light, baffles were found out. Not to mention the light that is reflected along the telescope 's inside tube. As a result single lenses with f/30 to f/50 or even slower( f/100 )to accomplish an image with less spherical aberration (more sharpness) and less chromatic aberration.Ĭhristiaan Huygens already knew that the inside of the telescope should be blacker than black in order to prevent incident light from falling into the eyepiece. As a result he introduced his "invention": an internal diafragm that stopped the opening down. Give you an amazing visual experience! 【Perfect Gift For Lovers And Kids】This handheld telescope is a unique gifting option for kids on occasions like birthday, Thanksgiving, Christmas, friendship’s day, Easter, engagements, weddings, anniversaries and more, it comes with a real premium leather bag, be a incredible collection and never missing any important or beautiful scenes.Lensmakers in the seventeenth century (for example Hans Lipperhey) found out that the center of a lens gives a sharper image. It is suitable for a variety of outdoor sports: bird watching, hunting, hiking trips, observing animals, camping, travelling, water sports, ball games, watching scenery, concert, outdoor exploration and other activities. 【Ideal For Outdoor Enthusiasts】 Monocular specially designed for outdoor enthusiasts, durable & waterproof. 【Premium Leather Bag & Ease for Carrying】 The handheld mini telescope is in a premium leather cylinder bag, it is a telescopic designed for outdoor enthusiasts and easy to carry, allowing you to take the pirate telescope with you anywhere you go. The transmittance of the monocular lens is increased, improve the light transmission rate and resolution, giving the clear, crisp images. The HD monocular telescope uses advanced BAK-4 optics prism and fully multi coated lens. 【FMC Lens & BAK-4 Prism】 Using FMC Superior BAK4 green film prism and high quality precision design. The design of the monocular allows the wearer to get close to the eyepiece without interfering with the viewing experience and feel more comfortable.Both adults and children can use it. It provides large field of view (352ft/1,000Yds), extending your adventures to greater possibilities. 【High Power & Comfortable 】 25x magnification and 50mm large objectives lens, the best magnification for distance watching, which provides a more comfortable functionality and larger view. And if you have any pirate enthusiasts in your life, they'll absolutely love it! ![]() If you're looking for something that's not just a toy but a real optical tool, this is definitely the one for you. Overall, I think this is a really cool and high-quality spyglass that is well worth the price. But if you can brace it on a branch or trekking pole, it's not a problem. However, I do have to admit that using a spyglass does require some patience and a steady hand since it is longer and therefore exerts more leverage over you. It does take a little practice to get the focus right, but once you get the hang of it, the glass is crystal clear and the magnification is amazing, better than what you can get from most binoculars at this price point. The matte metal finish looks great and the fact that it comes with a leather carrying case makes it easy to take with me on any outdoor adventure. The telescope itself is made of high-quality materials and has a nice weight to it, giving it a really solid feel. I just got my hands on this awesome spyglass and it's everything I was hoping for. ![]()
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