Pentax D FA 645 25mm F4 is a Fixed aperture Auto Focus (AF)
Ultra-Wideangle Prime lens with 645 max sensor coverage, and it is designed to be used with Pentax 645AF2 mount cameras.
What type of photography is the Pentax D FA 645 25mm F4 lens good for?
The type of photography that you are planning to use the Pentax D FA 645 25mm F4 is an important decision factor. Here we have evaluated its suitability to various photography scenarios:
| Photography Type |
Suitability |
| Bird/Wildlife | Poor |
| Sports | Poor |
| Portrait | Fair |
| Travel | Average |
| Street | Average |
| Wedding | Fair |
| Walk Around | Average |
| Vlogging | Very Good |
| Landscape | Good |
| Macro | Poor |
Reasons to Buy Pentax smc D FA 645 25mm F4 AL IF SDM AW Lens
Here, we've included a summary of the advantages and disadvantages of the Pentax smc D FA 645 25mm F4 AL IF SDM AW lens in a list form to help you determine whether it offers the features you need.
| Weather Sealed |
| Autofocus |
| Distance Scale |
| DoF(Depth of Field) Scale |
| Hood supplied |
| Full-time Manual Focusing |
| 9 Diaphragm Blades |
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| Not so fast for a short Prime Lens |
| Heavy |
Lens Mount
Pentax D FA 645 25mm F4 is compatible with cameras that have Pentax 645AF2 lens mount. Some of the latest released cameras that are compatible with the Pentax 645AF2 lenses are Pentax 645Z, Pentax 645D and .
Size, Weight and Filter Thread
Size and weight is a very important decision factor when searching for your next lens. Pentax D FA 645 25mm F4 has a maximum diameter of 90mm and total length of 140mm. It weighs 1070g / 37.7 oz.
Pentax D FA 645 25mm F4 has a filter thread of 41mm.
Focal Range
Pentax D FA 645 25mm F4 has a fixed focal lenght of 25mm.
Weather Sealings
Pentax D FA 645 25mm F4 is a weather sealed lens which provides an extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have an effective protection, you have to pair the Pentax D FA 645 25mm F4 with a weather sealed camera body such as Pentax 645Z, Pentax 645D and .
Optical Image Stabilization
Pentax D FA 645 25mm F4 doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Maximum Magnification Ratio
Pentax D FA 645 25mm F4 has a Max Magnification Ratio of 0.11x and has a minimum focusing distance of 0.4m. 0.11x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
Aperture
Pentax D FA 645 25mm F4 has a max aperture of F4.0 and a minimum aperture of F32.0.
Optical Formula
Pentax D FA 645 25mm F4's optical formula consists of 12 elements in 8 groups .
Lens Hood
Pentax D FA 645 25mm F4 comes with a built-in lens hood which is handy to reduce lens flare and glare in your photos.
Body Colour
Pentax D FA 645 25mm F4 is available in Black color.
Popular Comparisons of Pentax D FA 645 25mm F4
Here is the eight most popular comparisons of Pentax D FA 645 25mm F4 amongst Camera Decision readers.