Site Title

Compare Pentax DA 40mm F2.8 vs Pentax-DA* 16-50mm F2.8 vs Pentax-D FA* 70-200mm F2.8

Reviews

Neo score
68%
40%
40%
Pros
  • Exceptionally light and compact
  • Great rendering
  • Weather-sealed
  • Solid build quality
  • Superb image quality
  • Zoom lock prevents zoom creep
  • Weather-sealed
  • Comes with a tripod collar
  • Very nice construction
  • Well priced
Cons
  • A bit expensive for a pancake lens
  • Exterior designed like a 1990's lens
  • External zoom without zoom lock
  • Lens hood not included
  • Expensive for APS-C
  • Large and heavy

Price

MSRP
400 USD
1300 USD
1700 USD
Offers (incl. referral links)

Construction

Aperture Blades
9 blades, Rounded aperture diaphragm
9 blades
9 blades, Rounded (f/2.8-5.6)
Colors
Black, Silver
Black
Black or Silver
Form Factor
Short Telephoto Prime Lens
Standard Zoom Lens
Telephoto Zoom Lens
Image Size
APS-C
APS-C
Full-Frame
Lens Barrel
Distance scale
Focus limiter, Tripod collar, Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Pentax K-mount
Material
Magnesium alloy
Motor
Screw drive from camera
Stepper motor
Optical Formula | Elements
5 elements
16 elements
19 elements
Optical Formula | Groups
4 groups
10 groups
16 groups
Optical Formula | Special Glass
High-grade multi-layer HD (High Definition) Coating groups
ED + anomalous glass + aspherical elements, HD coating groups
HD, AB, Super Protect coatings groups

Dimensions

Filter Diameter
49 mm / 1.93 in
77 mm / 3.03 in
77 mm / 3.03 in
Size | Diameter
63 mm / 2.48 in
84 mm / 3.31 in
92 mm / 3.62 in
Size | Length
15 mm / 0.59 in
117 mm / 4.61 in
203 mm / 7.99 in
Weight
80 g / 2.83 oz
712 g / 25.16 oz
1755 g / 62.01 oz

Function

Angle Of View
39.7° Diagonal | 33.4° Horizontal | 22.6° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical (tele)
34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (wide) ~ 12.4° Diagonal | 10.3° Horizontal | 6.9° Vertical (tele)
Aperture
f/2.8 ~ f/22
f/2.8 ~ f/22
f/2.8 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
40 mm
16 mm ~ 50 mm
70 mm ~ 200 mm
Focal Length (35mm Equivalent)
60.0 mm
24.0 mm ~ 75.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
Yes
Zoom Type
External zoom
External zoom (zoom lock available)

Performance

Max Magnification
0.13x
0.24x
0.13x
Min Focus Distance
400 mm / 15.75 in
300 mm / 11.81 in
1200 mm / 47.24 in

Production

Accessory
Lens Hood: MH-RE49 (supplied)
Lens Hood: PH-RBN77 (sold separately)
Lens Hood: PH-RBM77 (supplied)
Debut
2013-08-27
2021-07-14
2015-02-04
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