Pentax 40mm F2.8 L is a Fixed aperture Auto Focus (AF)
Standard Prime lens with APS-C / DX max sensor coverage, and it is designed to be used with
KAF Mount cameras.
What type of photography is the Pentax 40mm F2.8 L lens good for?
The type of photography that you are planning to use the Pentax 40mm F2.8 L is an important decision factor. Here we have evaluated its suitability to various photography scenarios:
Lenses in Pentax KAF Mount with Same Focal and Aperture Range
Reasons to Buy Pentax smc DA 40mm F2.8 Limited Lens
Here we've included a summary of the advantages and disadvantages of the Pentax smc DA 40mm F2.8 Limited lens in a list form to help you determine whether it offers the features you need.
| Autofocus |
| Distance Scale |
| Hood supplied |
| Full-time Manual Focusing |
| 9 Diaphragm Blades for Smooth Bokeh |
| Light weight at only 90g / 3.2 oz |
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Buy Pentax 40mm F2.8 L from Amazon or B&H PHOTO
We couldn't find any significant Cons for the Pentax smc DA 40mm F2.8 Limited
Lens Mount
Pentax 40mm F2.8 L is compatible with cameras that have a Pentax KAF lens mount. Some of the latest released cameras that are compatible with the Pentax KAF lenses are Pentax K-3 III Monochrome, Pentax KF and Pentax K-3 III.
Pentax 40mm F2.8 L is also available in Pentax KAF mount.
Size, Weight and Filter Thread
Size and weight is a very important decision factor when searching for your next lens. Pentax 40mm F2.8 L has a maximum diameter of 63mm and total length of 15mm. It weighs 90g / 3.2 oz.
Pentax 40mm F2.8 L has a filter thread of 49mm. Below are links to the filters that we recommend you to consider for your Pentax 40mm F2.8 L:
Focal Range
Pentax 40mm F2.8 L has a fixed focal length of 40mm which has a 35mm equivalent focal range of 60mm when used on a APS-C / DX format camera.
Optical Image Stabilization
Pentax 40mm F2.8 L 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 40mm F2.8 L has a Max Magnification Ratio of 0.13x and has a minimum focusing distance of 0.4m. 0.13x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
Below are the 3 Standard Prime type Pentax KAF mount lens alternatives with highest max magnification ratios:
Aperture
Pentax 40mm F2.8 L has a max aperture of F2.8 and a minimum aperture of F22.0.
Optical Formula
Pentax 40mm F2.8 L's optical formula consists of 5 elements in 4 groups .
Lens Hood
Pentax 40mm F2.8 L comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Body Colour
Pentax 40mm F2.8 L is available in Black color.
Popular Comparisons of Pentax 40mm F2.8 L
Here are the eight most popular comparisons of the Pentax 40mm F2.8 L amongst Camera Decision readers.
Top Alternatives of Pentax 40mm F2.8 L Lens
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