Compare Pentax-D FA 70-210mm F4 vs Pentax DA 55-300mm F4.0-5.8 vs Nikon Z DX 50-250mm F4.5-6.3
Construction
Aperture Blades
9 blades
6 blades
7 blades
Colors
Black
Black
Black
Form Factor
Super Telephoto Zoom Lens
Super Telephoto Zoom Lens
Super Telephoto Zoom Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Focus limiter, Distance scale
Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Nikon Z-mount
Material
Magnesium alloy
Motor
Ring-type ultrasonic
Screw drive from camera
Stepper motor
Optical Formula | Elements
20 elements
12 elements
16 elements
Optical Formula | Groups
14 groups
8 groups
12 groups
Optical Formula | Special Glass
2 anomalous dispersion and 3 ED elements + HD coating groups
ED glass elements groups
1 ED element, Super Integrated Coating groups
Dimensions
Filter Diameter
67 mm / 2.64 in
58 mm / 2.28 in
62 mm / 2.44 in
Size | Diameter
79 mm / 3.11 in
71 mm / 2.80 in
74 mm / 2.91 in
Size | Length
175 mm / 6.89 in
112 mm / 4.41 in
110 mm / 4.33 in
Weight
819 g / 28.94 oz
466 g / 16.47 oz
405 g / 14.31 oz
Function
Angle Of View
23.3° Diagonal | 19.5° Horizontal | 13.0° Vertical (wide) ~ 7.9° Diagonal | 6.5° Horizontal | 4.4° Vertical (tele)
29.4° Diagonal | 24.6° Horizontal | 16.6° Vertical (wide) ~ 5.5° Diagonal | 4.6° Horizontal | 3.1° Vertical (tele)
32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical (wide) ~ 6.6° Diagonal | 5.5° Horizontal | 3.7° Vertical (tele)
Aperture
f/4 ~ f/32
f/4–5.8 ~ f/22–32
f/4.5–6.3 ~ f/16
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
1.5
Focal Length
70 mm ~ 210 mm
55 mm ~ 300 mm
50 mm ~ 250 mm
Focal Length (35mm Equivalent)
105.0 mm ~ 315.0 mm
82.5 mm ~ 450.0 mm
75.0 mm ~ 375.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Yes (5 stops)
Weather Resistance
Yes
Yes
No
Zoom Type
Internal zoom
External zoom
External zoom
Performance
Max Magnification
0.32x
0.28x
0.23x
Min Focus Distance
950 mm / 37.40 in
1400 mm / 55.12 in
500 mm / 19.69 in
Production
Accessory
Lens hood included
Lens Hood: PH-RBI 58mm (supplied)
Debut
2020-01-22
2013-10-07
2019-10-10
Reviews
Neofiliac score
31%
50%
50%
Pros
- Weather-sealed
- Beautifully built
- Very useful focal range
- Weather-sealed
- Great price for the price
- Optically stabilized
- Great telephoto reach
Cons
- Dark maximum aperture
- Dark and variable maximum aperture
- External zoom without zoom lock
- Not the best from Pentax
- Dark maximum aperture
- External zoom without zoom lock
- Lacks weather sealing
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