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Compare Pentax DA 21mm F3.2 vs Pentax DA 40mm F2.8

Construction

Aperture Blades
7 blades, Rounded aperture diaphragm
9 blades, Rounded aperture diaphragm
Colors
Black, Silver
Black, Silver
Form Factor
Wide-Angle Prime Lens
Short Telephoto Prime Lens
Image Size
APS-C
APS-C
Lens Barrel
Distance scale, DoF scale
Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Motor
Screw drive from camera
Screw drive from camera
Optical Formula | Elements
8 elements
5 elements
Optical Formula | Groups
5 groups
4 groups
Optical Formula | Special Glass
High-grade multi-layer HD (High Definition) Coating groups
High-grade multi-layer HD (High Definition) Coating groups

Dimensions

Filter Diameter
49 mm / 1.93 in
49 mm / 1.93 in
Size | Diameter
63 mm / 2.48 in
63 mm / 2.48 in
Size | Length
25 mm / 0.98 in
15 mm / 0.59 in
Weight
134 g / 4.73 oz
80 g / 2.83 oz

Function

Angle Of View
69.0° Diagonal | 59.5° Horizontal | 41.7° Vertical
39.7° Diagonal | 33.4° Horizontal | 22.6° Vertical
Aperture
f/3.2 ~ f/22
f/2.8 ~ f/22
Autofocus
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
21 mm
40 mm
Focal Length (35mm Equivalent)
31.5 mm
60.0 mm
Image Stabilization
No
No

Performance

Max Magnification
0.17x
0.13x
Min Focus Distance
200 mm / 7.87 in
400 mm / 15.75 in

Production

Accessory
Lens Hood: MH-RBB43 (supplied)
Lens Hood: MH-RE49 (supplied)
Debut
2013-08-27
2013-08-27

Reviews

Neofiliac score
59%
68%
Pros
  • Very compact
  • Very light
  • Exceptionally light and compact
  • Great rendering
Cons
  • Dark aperture
  • A bit expensive for an f/3.2 pancake
  • A bit weak on IQ
  • A bit expensive for a pancake lens

Price

Offers (incl. referral links)
Remove
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