Pentax HD Pentax-D FA 150-450mm f/4.5-5.6 ED DC AW Specs & DoF

150–450 mm

Focal length

f/4.5–5.6

Maximum aperture

11°–4°

Diagonal angle of view (APS-C)

APS-C

Designed for

3.0×

Zoom ratio

Specifications#

Brand: Pentax
Model: HD Pentax-D FA 150-450mm f/4.5-5.6 ED DC AW
Lens type: Telephoto zoom
Focal length: 150–450 mm
Maximum aperture: f/4.5–5.6
Image circle: APS-C (23.5×15.6 mm)
Mount(s): Pentax K
Projection: Rectilinear
Lensfun correction profile: Yes — distortion/vignetting/TCA

Equivalent focal length on different cameras#

Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).

Camera format	At 150 mm	At 260 mm	At 450 mm	Equiv. aperture (DoF)
APS-C	225 mm · 11°	390 mm · 6°	675 mm · 4°	f/6.8
APS-C (Canon)	240 mm · 10°	416 mm · 6°	720 mm · 3°	f/7.2
Micro Four Thirds	300 mm · 8°	520 mm · 5°	900 mm · 3°	f/9.0

Depth of field & background blur#

Computed on its native APS-C format (CoC 20 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 135 mm f/5.6 on aps-c.

Focal	Aperture	at 1 m	at 2 m	at 5 m	at 10 m	Hyperfocal	Blur @2 m
150 mm	f/4.5	0.7 cm	2.9 cm	19.0 cm	77.2 cm	256 m	11.5%
150 mm	f/8	1.2 cm	5.1 cm	33.8 cm	1.38 m	144 m	6.5%
260 mm	f/4.5	0.2 cm	0.9 cm	6.2 cm	25.4 cm	768 m	36.7%
260 mm	f/8	0.3 cm	1.6 cm	11.0 cm	45.1 cm	432 m	20.7%
450 mm	f/4.5	0.0 cm	0.3 cm	2.0 cm	8.3 cm	2.3 km	123.5%
450 mm	f/8	0.1 cm	0.5 cm	3.5 cm	14.8 cm	1.3 km	69.5%

Handheld & night-sky limits#

NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).

Body	Min. handheld shutter (longest focal)	500 rule at 150 mm	NPF at 150 mm, f/4.5
APS-C	1/640 s	2 s	2 s
APS-C (Canon)	1/800 s	2 s	2 s
Micro Four Thirds	1/1000 s	2 s	2 s

Compatible cameras#

Bodies in our database with a native Pentax K mount. Full-frame bodies switch to an APS-C crop with this lens.

Adapt it to other systems#

Sony E-mount Canon RF Nikon Z Fujifilm X-mount Micro Four Thirds L-Mount Canon EF-M Fujifilm G-mount Hasselblad XCD Nikon 1 (CX)Pentax Q Samsung NX Canon EF Nikon F

Similar lenses#

Sigma 150-500mm f/5-6.3 APO DG OS HSM f/5–6.3
Sigma 100-300mm f/4 APO EX DG HSM f/4
Sigma 100-300mm f/4 APO EX DG HSM + Kenko Teleplus PRO 300 AF 1.4× DGX ext. f/4
Pentax smc Pentax-M 80-200mm f/4.5 f/4.5
Tamron AF 80-210mm f/4.5-5.6 280D f/4.5–5.6
Tokina 80-200mm f/4.5-5.6 SZ-X f/4.5–5.6
Tokina AF 80-200mm f/2.8 AT-X 828 Pro f/2.8
Tokina AT-X AF SD 80-400mm f/4.5-5.6 f/4.5–5.6
Pentax smc Pentax-M 75-150mm f/4 f/4
Pentax HD Pentax-D FA* 70-200mm f/2.8 ED DC AW f/2.8
Sigma 70-200mm f/2.8 EX DG HSM f/2.8
Sigma 70-200mm f/2.8 EX DG OS HSM f/2.8

Frequently asked questions#

Is the Pentax HD Pentax-D FA 150-450mm f/4.5-5.6 ED DC AW full frame?

No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.

What is the Pentax HD Pentax-D FA 150-450mm f/4.5-5.6 ED DC AW equivalent to on APS-C?

Its focal length is already the real value for APS-C: 150–450 mm frames like 230–690 mm on full frame.

What is the Pentax HD Pentax-D FA 150-450mm f/4.5-5.6 ED DC AW good for?

As a telephoto zoom it suits sport, wildlife, events and compressed landscapes.

Sources & licences#

Lensfun lens database — CC BY-SA 3.0

Pentax HD Pentax-D FA 150-450mm f/4.5-5.6 ED DC AW