Pentax DFA645 Macro 90mm F2.8 is a Fixed aperture Auto Focus (AF)
Macro Prime lens with Optical Image stabilization and 645 max sensor coverage, and it is designed to be used with
645AF2 Mount cameras.
What type of photography is the Pentax DFA645 Macro 90mm F2.8 lens good for?
The choice of photography type for which you intend to use the Pentax DFA645 Macro 90mm F2.8 is a crucial decision factor. Below, we have assessed its suitability for various photography scenarios:
Reasons to Buy the Pentax HD DFA645 Macro 90mm F2.8 ED AW SR Lens
Here we've included a summary of the advantages and disadvantages of the Pentax HD DFA645 Macro 90mm F2.8 ED AW SR lens in a list form to assist you in determining whether it offers the features you need.
| Optical Image Stabilization |
| Autofocus |
| 9 Diaphragm Blades for Smooth Bokeh |
| High Max Magnification ratio of 0.5x |
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Lens Mount
Pentax DFA645 Macro 90mm F2.8 is compatible with cameras that have a 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
The size and weight are crucial factors to consider when searching for your next lens. Pentax DFA645 Macro 90mm F2.8 has a maximum diameter of 91mm and a total length of 117mm. It weighs 1040g / 36.7 oz.
Pentax DFA645 Macro 90mm F2.8 has a filter thread of 67mm. Below are links to the filters that we recommend you to consider for your Pentax DFA645 Macro 90mm F2.8:
You can also check All Pentax 645AF2 Mount Lenses with 67mm Filter Thread Size to find the matching lenses.
Focal Range
Pentax DFA645 Macro 90mm F2.8 has a fixed focal length of 90mm.
Optical Image Stabilization
The Pentax DFA645 Macro 90mm F2.8 features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Maximum Magnification Ratio
Pentax DFA645 Macro 90mm F2.8 has a Max Magnification Ratio of 0.5x with a minimum focusing distance of 0.41m. For a non-macro lens, the 0.5x is considered a high magnification and will come handy for close-up shots.
Aperture
The Pentax HD DFA645 Macro 90mm F2.8 ED AW SR features a maximum aperture of F2.8 and can be stopped down to a minimum aperture of F22. An aperture of F2.8 provides a solid balance, offering capable low-light performance and giving you plenty of flexibility when shooting indoors or during golden hour. The combination of a longer 90mm focal length and a bright F2.8 opening makes it incredibly easy to isolate your subject, melting away busy backgrounds into smooth, professional bokeh. The minimum setting of F22 is excellent for deep depth of field work like macro photography, though you may want to avoid the absolute smallest settings to skip the sharpness loss caused by optical diffraction.
Optical Formula
Pentax DFA645 Macro 90mm F2.8's optical formula consists of 11 elements in 9 groups .
Popular Comparisons of Pentax DFA645 Macro 90mm F2.8
Here are the 8 most popular comparisons of the Pentax DFA645 Macro 90mm F2.8 amongst Camera Decision readers.
Top Alternatives of Pentax DFA645 Macro 90mm F2.8 Lens
In addition, it would be interesting to check which lenses from other mounts are most commonly compared with the Pentax HD DFA645 Macro 90mm F2.8 ED AW SR.
Top Alternatives of Pentax DFA645 Macro 90mm F2.8 in Other Lens Mounts
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