William Optics is proud to introduce the SPL (Super Planetary Long eye-relief) eyepieces. This new Planetary Eyepiece series is designed for users with needs of a high-power, sharp and contrasty views for planetary observations. The long eye relief is a bonus for people with eyeglasses and for people who do not want to strain their eyesight during observing sessions.
High Quality Optical Lens
- Special glasses and perfect multi-coatings make the optical performance of SPL eyepieces amazing in almost any telescope. A very well corrected field of view, free from optical aberrations allows you to finally enjoy planets as they deserve.
- Good transmittance and excellent color rendition will allow you to enjoy planetary details you had missed so far.
- Leave ghosting and flares to other eyepieces: your William Optics SPL will not disappoint you.
High Power and High Contrast
- Available in three focal lengths, 3mm, 6mm, and 12.5mm, these eyepieces will satisfy any power requirement. Easy to barlow, they will yield amazing results even at the highest powers (provided that atmospherical conditions and your telescope can hold such high powers!).
- Great contrast and sharp to the edge.
- Distortion-free extra details is not a miracle: it all goes down to quality construction and design. SPL give you just what you always wanted.
Long Eye Relief
- All three focal lengths boast very long eyerelief for maximum view comfort even for eyeglass wearers.
- Mechanically beautiful and functional tapered barrel.
- Blackened lens edges and flat black paint in the barrel to minimize sources of potential reflections.
- The very competitive price of these planetary eyepieces will encourage you to get the whole series to add to your collection!
Aug 4, 2017
Excellent 3mm EyepiecePros: Cons: Comments:
The Williams Optics 3mm has proved itself to be a great addition to my set of eyepieces. It maximizes the magnification for my AT 72mm refractor to 144x and it delivers a clear sharp image of double stars that are 2 arcseconds apart. It's a quality product for a very reasonable cost of $108.
This review was provided courtesy of AgenaAstro.comSep 27, 2013
Quality Lenses,Lightweight,Compact,Accurate,Strong Construction,Easy to UseCons:
Do Not HaveComments:
As in the center and along the field both 1:4 and 1:10 for - anything but rather regular pattern diffraction pattern Erie. This is partly to be explained very small focal length of the eyepiece, but also shows the high quality of correction of aberrations. Not bad for this "gray horse" from Taiwan. Eyepiece shows a significant positive distortion. Moderate glare. Chromatism is not noticeable. Eye relief for the observations in glasses is not enough, but without the glasses - quite convenient.
Compared to 4 mm eyepiece radians has a slightly larger light scattering and a real comfortable eye relief. But then the price is more than half the size!
A great short throw downsider for "fast" Newtonian, and for moderate luminosity apochromats - recommend.
This review was provided courtesy of AgenaAstro.comJun 17, 2013
Excellent Eyepiece at Reasonable CostPros:
Great Eye Relief,LightweightCons: Comments:
While one could get higher power with a Barlow (I have a Televue "Big Barlow") the ease and weight saving by going to a short FL eyepiece cannot be overlooked. Since getting this eyepiece, I've been viewing Saturn most nights the skies are open. The views offered with this eyepiece are exceptional, particularly at this price point. You cannot go wrong picking up one of these guys.
This review was provided courtesy of AgenaAstro.comMar 5, 2013
High power at its bestPros:
Quality LensesCons: Comments:
Best used on a short focal length scope. I read a review for the explore scientific 80mm triplet (which I own), the reviewer used this eyepiece. Could not be happier with the results. Crystal clear views of the tightest double stars
This review was provided courtesy of AgenaAstro.comMay 26, 2009
Nice solid eyepiece at a great pricePros: Cons: Comments:
The WO 3mm SPL is a nice eyepiece. It offers generous eye relief and good high power views. The price at Agena astroproducts beat everyone and having bought from them before I knew the sale would be great again. Definitely a good deal.
This review was provided courtesy of AgenaAstro.comSort by
Apparent Field of View 55° Barrel Size 1.25" (31.7mm) Bolt Case Included Yes - Free Agena Eyepiece Container Bolt Case Size Agena 52x120mm Coatings Fully Multi-Coated End Caps 2 Eye Relief by Design 20mm Focal Length 3mm Lens Elements 7 Lens Groups 4 Blackened Lens Edges Yes Manufacturer William Optics Eyepiece Focal Length 5mm and Under Eyepiece Field of View 51 - 60 degrees Eyepiece Series William Optics SPL Barrel Type Tapered barrel Filter Threads Standard 1.25" Filter Thread (M28.5 x 0.6) Eyepiece Weight 7.05oz (200g)