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Pentax Eyepiece SMC XW 16.5
Product Code: 6360209C
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The Pentax Eyepiece SMC XW 16.5 provides a particularly wide field of view when using telescopes for exciting observation of nebulae and star clusters with high-quality images, thanks to an advanced optical system.
£549.00
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Pentax Eyepiece SMC XW 16.5 Summary
Particularly large field of view
The two new eyepieces of the XW series have the largest field of view in the series at 85°. In combination with an eye relief of 20 mm, they provide a particularly wide field of view for exciting observation of nebulae and star clusters.
High-quality optics for exceptional image quality
The new eyepieces feature an optical system with 7 elements in 5 groups that surpasses the conventional XW series to deliver sharp star images right to the edge of the field of view. The high-performance optics consist of lanthanum glass elements with high refractive power and particularly low dispersion, which produce a balanced image with minimal aberrations. It is specially designed to reduce the annoying blackout effect by effectively compensating for the spherical aberration of the pupil.
PENTAX original multi-coating for outstanding light transmission
All lens surfaces that come into contact with the air are treated with the original multi-coating, while all laminated surfaces are treated with the innovative partial coating to achieve light transmission of more than 90 per cent (an astonishing 96 per cent at 550nm) across the visible light spectrum.
Advanced light-shielding technology for improved image contrast
Thanks to PENTAX's advanced computer simulation technology, the XW series features a lightshielding diaphragm in the most effective position to dramatically reduce internal reflections and provide a brighter, higher contrast image.
Weatherproof construction for all-weather viewing
The XW Series features a JIS Class 4* weatherproof construction that allows use even in drizzle or nighttime dew.
Specifications
| Focal Length | 16.5mm |
| Lens construction | 44747 |
| [Elements/Groups] | |
| Eye Relief | 20mm(12mm) |
| Figures in parentheses are the | |
| distance from the viewing rubber | |
| Apparent Angle of View | 85° |
| Coating* | Multi coating |
| Weatherproof | JIS class 4 equivalent (splash-proof) |
| Sleeve size | 50.8mm |
| Diameter & Length | 76mm×142mm |
| (minimum) | |
| inch | 3.0in. x 5.6in. |
| Weight (+/- 5%) | 745g |
| onz | 26.3 oz. |
| Accessories | Eyepiece lens cap,Objective lens cap |
| Offers: Astronomy |
| Offer Category: N/A |
| Offer Product Type: N/A |
| Colour: N/A |
| Diameter (mm): N/A |
| Height (mm): N/A |
| Length (mm): N/A |
| Width (mm): N/A |
| Weight (g): N/A |
| Environmental Sealing: N/A |
| Scope Close focus (m): N/A |
| Scope Eyerelief (mm): N/A |
| Focal length (mm): N/A |
| Scope Lens coating: N/A |
| Max magnification: N/A |
| Min magnification: N/A |
| Scope Objective lens (mm): N/A |
| Scope Type: N/A |
| Notes: N/A |
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Condition guide
Our used products are subject to wear and tear in comparison to brand new products. This also applies to accessories that are supplied with the camera including batteries which may have a lower optimum performance level/life expectancy.
- Like New – The equipment is in a condition as if you have just bought it from the manufacturer. The item is still considered to be ‘Like New’ even without the original packaging and accessories. The product has been fully tested and is in perfect working order. Lenses are optically clear. There may be light dust present that will not effect the imagery.
- Excellent – The equipment should be close to being ‘Like New’ but there may be some small cosmetic blemishes that lower its grade. The product has been fully tested and is in perfect excellent order.
- Cameras – Should have no marks on the LCD screen
- Lenses – Should have no marks on the elements and optically clear. There may be light dust present that will not effect the imagery.
- Very Good – The equipment may have some slight cosmetic wear to the paintwork and cosmetic blemishes with only light signs of use and the product has been fully tested and is in great working order.
- Cameras – The LCD screen may have small signs of wear that does not affect its display
- Lenses – The mount of the lens will start to show signs of wear
- Good – The equipment is showing more obvious signs of cosmetic wear and blemishes, but the product has been fully tested and is in great working order.
- Cameras – LCD screen may have scratches or wear that is starting to affect the display.
- Lenses – May have slight dust inside that does not affect images. The mount shows signs of use.
- Well Used – The equipment will show significant signs of wear. The paintwork will be coming away in large areas exposing the metal work, but the product has been fully tested and is in great working order.
- Cameras – LCD screen is heavily worn either by de-lamination or has scratches to it. Rubber grips are starting to come away from the body.
- Lenses – The lens has dust inside that may affect images. The rubber zoom/focus ring is coming away from the barrel of the lens.
*All of our used items are listed with the accesories that are included. If they are not listed then they will not be supplied at eh epoint of purchase.
