HD Pentax-DA 11-18mm F2.8 is a Fixed aperture Auto Focus (AF) Ultra-Wideangle Zoom
lens with APS-C / DX max sensor coverage, and it is designed to be used with KAF3 Mount
What type of photography is the HD Pentax-DA 11-18mm F2.8 lens good for?
The choice of photography type for which you intend to use the HD Pentax-DA 11-18mm F2.8 is a crucial decision factor. Below, we have assessed its suitability for various photography scenarios:
Reasons to Buy the HD Pentax-DA 11-18mm F2.8 Lens
Here we've included a summary of the advantages and disadvantages of the HD Pentax-DA 11-18mm F2.8 lens in a list form to assist you in determining whether it offers the features you need.
Report a correction
| AF/MF Switch on Lens
| Distance Scale
| Hood supplied
| Full-time Manual Focusing
| Fast Aperture at Wide end
| Fast Aperture at Tele end
| Constant f2.8 aperture throughout the range
| 9 Diaphragm Blades for Smooth Bokeh
| Extreme Wide-angle capability
Buy HD Pentax-DA 11-18mm F2.8 from Amazon or B&H PHOTO
| Lens Extends while zooming
HD Pentax-DA 11-18mm F2.8 is compatible with cameras that have a Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with the Pentax KAF3 lenses are Pentax K-3 III Monochrome, Pentax KF and Pentax K-3 III.
Size, Weight and Filter Thread
The size and weight are crucial factors to consider when searching for your next lens. HD Pentax-DA 11-18mm F2.8 has a maximum diameter of 90mm and total length of 100mm when not extended. It weighs 704g / 24.8 oz.
HD Pentax-DA 11-18mm F2.8 has a filter thread of 82mm. Below are links to the filters that we recommend you to consider for your HD Pentax-DA 11-18mm F2.8:
HD Pentax-DA 11-18mm F2.8 has a focal range of 11-18mm and 1.6X zoom ratio which has a 35mm equivalent focal range of 16.5-27mm when used on a APS-C / DX format camera.
The HD Pentax-DA 11-18mm F2.8 is a weather-sealed lens, which provides extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have effective protection, you have to pair the HD Pentax-DA 11-18mm F2.8 with a weather-sealed camera body such as the Pentax K-3 III Monochrome, Pentax KF and Pentax K-3 III.
HD Pentax-DA 11-18mm F2.8 features Rotary (extending) zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.
Maximum Magnification Ratio
HD Pentax-DA 11-18mm F2.8 has a Max Magnification Ratio of 0.1x and has a minimum focusing distance of 0.3m. 0.1x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
Below are the 3 Ultra-Wideangle Zoom type Pentax KAF mount lens alternatives with highest max magnification ratios:
HD Pentax-DA 11-18mm F2.8 is a fixed aperture lens with a constant max aperture of f2.8 from 11mm all the way to the 18mm .
HD Pentax-DA 11-18mm F2.8's optical formula consists of 16 elements in 11 groups .
HD Pentax-DA 11-18mm F2.8 comes with a removable petal shaped lens hood which is handy to reduce lens flare and glare in your photos. The model number of the hood is PH-RBF82.
HD Pentax-DA 11-18mm F2.8 is available in Black color.
Popular Comparisons of HD Pentax-DA 11-18mm F2.8
Here are the eight most popular comparisons of the HD Pentax-DA 11-18mm F2.8 amongst Camera Decision readers.
Top Alternatives of HD Pentax-DA 11-18mm F2.8 Lens
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate, I earn from qualifying purchases.