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User Manual for Pentax SMC XW 3.5mm Wide Angle Eyepiece Click to enlarge the picture
Contents of the user manual for the Pentax SMC XW 3.5mm Wide Angle
- Product category: Eyepieces Pentax
- Brand: Pentax
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Pentax Eyepieces
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User manual for the Pentax SMC XW 3.5mm Wide Angle contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Pentax product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Pentax user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Pentax product will considerably shorten its lifespan!
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Product description Pentax eyepieces are a near consensus choice amongst serious amateur and professional astronomers as the best that's out there, quite an accomplishment indeed given the fervent passion of the collective. Pentax eyepieces are JIS Class 4 waterproof, rather impressive particularly given the fact that this includes their zoom model.The XW line represents an even further improvement upon the venerable XL series. The apparent field of view has been expanded to a whopping 70°, but remarkably this was achieved without reducing their impressive eye relief of 20mm. There are eyepieces available with wider apparent viewing fields, but to take advantage of that wider field you'll have to be much closer to the eyepiece. This isn't exactly conducive to extended observing sessions. Additionally, there are lesser eyepieces with similar claims of 70° apparent viewing fields, but the performance upon the edge of these eyepieces isn't on par with the Pentaxes. If you're using a telescope with a fast aperture, this is of particular importance. These are large and expensive eyepieces, but that's the price to pay for such an enviable combination of viewing field and eye relief. Buy the best once, and you'll still be enjoying the quality long after you've forgotten the price. Should you ever need to painfully part with your purchase, the best always has the most liquidity on the used market because they're rarely ever offered. - Continuous helicoid eyecup design gives perfect eye relief for all
- Accepts conventional 1.25" diameter filters for astronomical and terrestrial applications
- Usable for digiscoping when combined with PF-DS1 adapter(and appropriate Pentax Optio digital camera)
UPC: 027075075191 In the Box Pentax SMC XW 3.5mm Wide Angle Eyepiece (1.25") Front & Rear Push-On Lenscaps Helicoid Case Limited Lifetime Warranty Table of Contents
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Technical parametersPentax 70511 Specs | Focal Length | 3.5mm | | Eye Relief | 20.0mm | | Apparent Field of View | 70° | | Dimensions | 2.4 x 5.4" (61 x 137mm) WxH | | Weight | 0.89 lb (405 g) | | | | Package Weight | 1.35 lb | | Box Dimensions (LxWxH) | 7.5 x 4.0 x 3.5" |
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