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User Manual for Viltrox PFU RBMH 20mm f 1.8 ASPH Lens for Sony E Click to enlarge the picture
Contents of the user manual for the Viltrox PFU RBMH 20mm f 1.8
- Product category: Mirrorless System Lenses Viltrox
- Brand: Viltrox
- 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 Viltrox Mirrorless System Lenses
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User manual for the Viltrox PFU RBMH 20mm f 1.8 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 Viltrox 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 Viltrox 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 Viltrox product will considerably shorten its lifespan!
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Product description Offering a broad field of view and a bright design, the PFU RBMH 20mm f/1.8 ASPH from Viltrox is an ultra-wide prime lens for Sony E-mount mirrorless cameras. The wide-angle design and fast f/1.8 maximum aperture make it well suited to astrophotography use, as well as landscape, interior, and architectural shooting. Its optical design incorporates a series of aspherical and low dispersion elements, which reduce spherical and chromatic aberrations for sharp, well-corrected imagery with accurate color rendering. An HD Nano multi-layer coating has also been applied to suppress flare and ghosting for improved contrast when working in strong lighting conditions. The lens has a manual focus design, which permits working with subjects as close as 9.8" away, and its 14-blade diaphragm contributes to a pleasing bokeh quality. Additionally, it is constructed from brass for durability and smooth operation. - Ultra-wide prime is designed for full-frame Sony E-mount mirrorless cameras; however, it can also be used with APS-C models where it provides a 30mm equivalent focal length.
- Bright f/1.8 maximum aperture suits working in difficult lighting conditions and also offers increased control over depth of field.
- Four extra-low dispersion elements, one double-sided aspherical element, and one element made from highly transparent glass all contribute to reducing a variety of aberrations in order to produce a well-corrected image with accurate color and high sharpness.
- HD Nano multi-layer coating has been applied to individual elements to reduce flare and ghosting for improved contrast. Also, this coating is water resistant to help protect the exposed surfaces from moisture.
- Manual focus design, with a 148.5° focus throw, permits working with subjects as close as 9.8" away.
- Engraved focus distance and depth of field scales benefit working with prefocus and hyperfocal focusing techniques.
- A 14-blade diaphragm contributes to a pleasing bokeh quality.
- Brass lens barrel construction realizes a physically durable design that also affords smooth operation.
- Included lens hood helps to prevent flare and also affords some protection to the bulbous front element. Additionally, a filter adapter ring is included for mounting 82mm screw-in filters.
In the Box Viltrox PFU RBMH 20mm f/1.8 ASPH Lens for Sony E Front and Rear Lens Caps Lens Hood Filter Adapter Table of Contents
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Technical parametersViltrox 20mm f/1.8 Specs | Focal Length | 20mm | | Maximum Aperture | f/1.8 | | Minimum Aperture | f/16 | | Lens Mount | Sony E | | Format Compatibility | Full-Frame | | Maximum Magnification | 0.12x | | Minimum Focus Distance | 9.84" / 25 cm | | Optical Design | 12 Elements in 9 Groups | | Diaphragm Blades | 14 | | Focus Type | Manual Focus | | Image Stabilization | None | | Filter Size | 82 mm (via Adapter) | | Weight | 1.7 lb / 775 g |
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