Compare PENTAX-D FA 28-105mm F3.5-5.6 vs Pentax-D FA 24-70mm F2.8
Construction
Aperture Blades
9 blades
9 blades
Colors
Black
Black
Form Factor
Standard Zoom Lens
Standard Zoom Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Motor
Micromotor
Ultrasonic
Optical Formula | Elements
15 elements
17 elements
Optical Formula | Groups
11 groups
12 groups
Optical Formula | Special Glass
One ED and two aspherical elements + HD and SP coatings groups
Three ED + four aspherical elements + HD Coating groups
Dimensions
Filter Diameter
62 mm / 2.44 in
82 mm / 3.23 in
Size | Diameter
73 mm / 2.87 in
89 mm / 3.50 in
Size | Length
87 mm / 3.43 in
110 mm / 4.33 in
Weight
440 g / 15.55 oz
787 g / 27.81 oz
Function
Angle Of View
75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical (wide) ~ 23.3° Diagonal | 19.5° Horizontal | 13.0° Vertical (tele)
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (tele)
Aperture
f/3.5–5.6 ~ f/22–38
f/2.8 ~ f/22
Autofocus
Yes
Yes
Focal Length
28 mm ~ 105 mm
24 mm ~ 70 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
Yes
Yes
Performance
Max Magnification
0.22x
0.2x
Min Focus Distance
500 mm / 19.69 in
380 mm / 14.96 in
Production
Accessory
Lens Hood: PH-RBC62 (supplied)
Lens Hood: PH-RBD82 (supplied)
Debut
2016-02-17
2015-09-24
Reviews
Neofiliac score
59%
59%
Pros
- Weather-sealed
- Weather-sealed
- Good autofocus performance
- Well priced for f/2.8 standard zoom
Cons
- Not Pentax's best build quality
- Not the best optical performance
- Not as well built as newer Pentax lenses
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