Site Title

Compare Pentax-DA 10-17mm F3.5-4.5 vs Pentax-D FA 21mm F2.4ED vs Pentax-D FA* 85mm F1.4

Reviews

Neo score
31%
76%
68%
Pros
  • Ultra-wide fisheye offers unique creative possibilities
  • Weather-sealed
  • Great image quality
  • 8-bladed aperture for sunstars
  • Bright maximum aperture
  • Weather-sealed
  • Premium design and construction
Cons
  • Lacks front filter thread
  • External zoom without zoom lock
  • Lacks weather sealing
  • Not the strongest optical performance
  • Large diameter
  • On the heavy side

Price

MSRP
500 USD
1400 USD
Offers (incl. referral links)

Construction

Aperture Blades
6 blades
8 blades, Rounded diaphragm
9 blades
Colors
Black
Black, Silver
Black
Form Factor
Ultra Wide-Angle Zoom Lens
Ultra Wide-Angle Prime Lens
Short Telephoto Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Distance scale, DoF scale
Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Pentax K-mount
Material
Aluminum
Motor
Screw drive from camera
Ring-type ultrasonic
Optical Formula | Elements
10 elements
11 elements
12 elements
Optical Formula | Groups
8 groups
8 groups
10 groups
Optical Formula | Special Glass
ED element, HD + Super Protective coatings groups
4 ED elements, 1 Super ED element groups
1 aspherical + 3 Super ED elements, HD coating groups

Dimensions

Filter Diameter
67 mm / 2.64 in
82 mm / 3.23 in
Size | Diameter
68 mm / 2.68 in
74 mm / 2.91 in
95 mm / 3.74 in
Size | Length
70 mm / 2.76 in
89 mm / 3.50 in
124 mm / 4.88 in
Weight
317 g / 11.20 oz
416 g / 14.70 oz
1255 g / 44.35 oz

Function

Angle Of View
180° Diagonal (wide) ~ 100° Diagonal
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
28.6° Diagonal | 23.9° Horizontal | 16.1° Vertical
Aperture
f/3.5–4.5 ~ f/22–32
f/2.4–22 ~ f/2.4–22
f/1.4 ~ f/16
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
Focal Length
10 mm ~ 17 mm
21 mm
85 mm
Focal Length (35mm Equivalent)
15.0 mm ~ 25.5 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes
Yes
Zoom Type
External zoom

Performance

Max Magnification
0.39x
0.26x
0.12x
Min Focus Distance
140 mm / 5.51 in
180 mm / 7.09 in
850 mm / 33.46 in

Production

Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2019-07-08
2021-10-21
2020-05-27
Remove
Remove
Remove
Add up to 6 products to the comparison using the search bar above
Information on this page is provided on an as-is basis. No warranty on accuracy is implied. This page may contain affiliate links to third-party merchants such as Amazon and eBay. If you make a purchase using the supplied link, we may receive a commission. Neofiliac places the utmost respect for your privacy. We use no cookie whatsoever beyond that needed for the proper functioning of the website.