We looked at several aspects when choosing the best lens, from objective measures such as physical dimensions and design to subjective considerations of look and feel. Though we have a variety of recommendations across various styles, all of our picks satisfy criteria that suit most people, thereby reducing the confusion of choice.
While you may find a len for any aesthetic preference, we looked for lens that had simple, elegant designs - ones that would appeal to most people - rather than models that adhered to specific aesthetic choices.
Note: It doesn't mean that the lens that aren't mentioned here are bad. We picked these because these will help most of the people. If you have very specific preferences, we suggest you consider one of the below-mentioned products as a starting point before finalizing your pick.
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The celestron telescope reducer len is the best feature-rich len on the market today. If you have a longer focal length telescope, like a SCT 8” at 2032mm, a focal reducer helps quite a bit on deep space images. This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality. This is threaded for use on Schmidt-Cassagrain telescopes, not Newtonians like the 130 SLT. The F/6.3 reducer corrector offers wider fields of view with any Schmidt-Cassegrain telescope. It provides maximum light transmission with near full-field illumination.
This is a must have for all sct owners at least if you plan on viewing planets only, changing the focal leght to 6.3 make your set of eyepieces to work as a seccond set and is excellent for dso observation. It is extremely high quality and excellent glass.
Why We Like This:
Wider view for sun or moon with dslr camera t mount
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Best part: celestron apparent field costs comparatively low and it is available to ship in 24 hours. This 12 mm eye piece will give you above 100X magnification on your 4SE. It makes a great jump from finder scope to observation, and then you can start narrowing the field with shorter eyepieces. It's definitely beginner friendly and the 40mm size makes for wonderfully bright images.
This eyepiece will give you above 100X magnification on your 4SE. It comes in its own sturdy container for storage. The eyepiece is well made, comes with a short rubber eye cup to keep out stray light and a nice knurled rubber grip. These are well constucted, solid feeling eps that are easily handled with gloved or cold hands. It's a nice step up from the original equipment eyepiece.
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Compared with other len in this category, the svbony focal reducer has a convenient design. If you're looking for an inexpensive 0.75x or 0.8x reducer, then this should be one to consider. This focal reducer is a universal focal reducer. It has a female thread at the rear end to fit filters etc. It has a 1.25" filter screw-in thread. It is threaded for attaching to a c-mount standard for c or cs mount cctv type cameras with telescopes.
This 0.5x focal reducer does increase the field of view for the sv305 camera. It is made of metal, which better protects the product itself and prolongs its service life. The reducer is also great for taking videos of the moon using your webcam.
Why We Like This:
Svbony 1.25" fully multi-coated 0.5x focal reducer for telescope eyepiece photography and observing
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The svbony telescope reducer len should be able to handle its purpose and duties with ease. It is ideal for video astronomy. This reducer halves the focal length of your telescope, giving you a much wider field of view. It has standard 1.25inch telescope threads m28.5x0.6 and fits easily into any 1.25" eyepiece or any 1.25" photo adapter. It is designed to screw into the bottom of a 1.25" barrel eyepiece.
This product has the same threading front and back as a 1.25" filter so it fits on the end of a 1.25" eyepiece. It reduces the focal length for visual and photographic use. It can be used visually with eyepiece and filter.
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The astromania telescope reducer len might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. A barlow lens lets you increase the magnification of any eyepiece you are using. It allows detailed views of the moon especially during the brighter phases. It’s better to use a micro-fiber cloth on your optics than other wipes or tissue, as it does not leave a residue, and can be reused.
This set expands the range of magnifications and lets you discover more details. The black plastic carry case has die-cut foam inside to protect and cushion your accessories. These are made out of steel that make them durable. It cleans optics without scratching or leaving residue. It comes with it come in handy.
Why We Like This:
Useful 1.25 inch accessories for every standard entry-level telescope
Increase the contrast with mars' polar caps or jupiter's bands
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This is a simple lens that reduces the focal length of your telescope. This reducer halves the focal length of your telescope, giving you a much wider field of view. The lens is clear with minimal fringe and otherwise threads well and works as expected. It can be used with additional spacers (available separately) to achieve further focal reduction.
The 0.5 x focal reducer effectively halves the focal length of your telescope, giving you a much wider field of view. This lets you take images of much larger areas of the lunar surface, for example. The reducer is also great for taking videos of the moon using your webcam.
Why We Like This:
Can be used visually with an eyepiece
Expands the image field of your webcam
Cemented together and coated, black-anodized aluminum housing