Pentax HD Pentax-FA 77mm F1.8 Limited Full-Frame Lens (2021)
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Product Overview
Pentax HD Pentax-FA 77mm F1.8 Limited is a short telephoto prime lens for Pentax K-mount. It covers the full-frame image circle. Introduced by Pentax in 2021, it has 7 elements in 6 groups.
Unfortunately, Pentax has opted to omit weather sealing for this lens, so owners should pay extra attention when shooting in incremental weathers. On the lens barrel, one can find a physical aperture ring. Those who wish to focus manually can have the best of both worlds (with the usual caveats).
A telephoto prime lens, the HD Pentax-FA 77mm F1.8 Limited is well suited for portrait photography.
Ratings
What we found**
Neofiliac score 68% (not directly comparable across industries)
Pros
- Rather compact
- Beautifully crafted
- Comes with physical aperture ring
- Good image quality
- Smooth rendering
Cons
- Lacks weather sealing
Price Comparison
Specifications
Construction
Aperture Blades
9 blades
Colors
Black, silver
Form Factor
Short Telephoto Prime Lens
Image Size
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Pentax K-mount
Material
Aluminum
Motor
Screw drive from camera
Optical Formula | Elements
7 elements
Optical Formula | Groups
6 groups
Optical Formula | Special Glass
HD + Super Protect coatings groups
Dimensions
Filter Diameter
49 mm / 1.93 in
Size | Diameter
64 mm / 2.52 in
Size | Length
48 mm / 1.89 in
Weight
270 g / 9.54 oz
Function
Angle Of View
31.4° Diagonal | 26.3° Horizontal | 17.7° Vertical
Aperture
f/1.8 ~ f/22
Autofocus
Yes
Focal Length
77 mm
Focus Type
Internal
Image Stabilization
No
Weather Resistance
No
Performance
Max Magnification
0.14x
Min Focus Distance
700 mm / 27.56 in
Production
Accessory
Lens hood included
Debut
2021-02-24
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Scores are not directly comparable across industries.
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