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Compare Pentax-DA 55-300mm F4.5-6.3 vs Pentax-FA 77mm F1.8

Construction

Aperture Blades
9 blades, Rounded blades
9 blades
Colors
Black
Black, silver
Form Factor
Super Telephoto Zoom Lens
Short Telephoto Prime Lens
Image Size
APS-C
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Pentax K-mount
Pentax K-mount
Material
Aluminum
Motor
Stepper motor
Screw drive from camera
Optical Formula | Elements
14 elements
7 elements
Optical Formula | Groups
11 groups
6 groups
Optical Formula | Special Glass
ED elements + HD and SP coatings groups
HD + Super Protect coatings groups

Dimensions

Filter Diameter
58 mm / 2.28 in
49 mm / 1.93 in
Size | Diameter
77 mm / 3.03 in
64 mm / 2.52 in
Size | Length
89 mm / 3.50 in
48 mm / 1.89 in
Weight
471 g / 16.64 oz
270 g / 9.54 oz

Function

Angle Of View
29.4° Diagonal | 24.6° Horizontal | 16.6° Vertical (wide) ~ 5.5° Diagonal | 4.6° Horizontal | 3.1° Vertical (tele)
31.4° Diagonal | 26.3° Horizontal | 17.7° Vertical
Aperture
f/4.5–6.3 ~ f/22–32
f/1.8 ~ f/22
Autofocus
Yes
Yes
Crop Factor
1.5
Focal Length
55 mm ~ 300 mm
77 mm
Focal Length (35mm Equivalent)
82.5 mm ~ 450.0 mm
Focus Type
Extending front
Internal
Image Stabilization
No
No
Weather Resistance
Yes
No
Zoom Type
External zoom

Performance

Max Magnification
0.3x
0.14x
Min Focus Distance
950 mm / 37.40 in
700 mm / 27.56 in

Production

Accessory
Lens Hood: PH-RBK58 (supplied)
Lens hood included
Debut
2016-06-08
2021-02-24

Reviews

Neofiliac score
50%
68%
Pros
  • Weather-sealed
  • Very affordable for the reach it provides
  • Rather compact
  • Beautifully crafted
  • Comes with physical aperture ring
  • Good image quality
  • Smooth rendering
Cons
  • Dark maximum aperture
  • External zoom without zoom lock
  • Lacks weather sealing

Price

Offers (incl. referral links)
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