OVERALL
ALTERNATIVES
SPECS
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REVIEWS
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Products in this category are evaluated mathematically under Frontumo Camera lenses Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
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Sigma 15mm F2 8 EX DG Diagonal Fisheye Review | 54 Data compared

Avg. price:~£560Lens mount:Canon EF, Nikon F, Sony A, Pentax K, Sigma SAMaximum focal length:15 mmMaximum aperture (telephoto end):2.8Optical image stabilization:noMaximum angle of view:180 °

Sigma 15mm F2 8 EX DG Diagonal Fisheye Review: Compare 54 technical specifications and user reviews to see how this product ranks in the Camera lenses category and whether it is worth buying.

5.7

Overall score

Score
5.7/ 10
✕
What it is
An overall evaluation of the camera lens's quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best camera lenses on the market.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 87% of models
Score components

80%

5.2

Technical score

20%

8.1

User score

â–¼Worse than 87% of camera-lenses
5.2

Technical score

Technical score
5.2/ 10
✕
What it is
An assessment of technical performance for products in the Camera lenses category across these key areas: Mount & Format, Optics & Aperture, Focus & Controls, Stabilization, Build & Handling, Lab Scores.
When it matters
When you want to compare camera lenses based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 88% of models
Score components

35%

5.2

Optics & Aperture

24%

5.8

Build & Handling

20%

4.8

Focus & Controls

10%

?

Lab Scores

8%

1.0

Stabilization

3%

2.8

Mount & Format

â–¼Worse than 88% of camera-lenses
8.1

User score

User score
8.1/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the camera lens.
When it matters
When real-world owner satisfaction and review volume matter to your decision.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 60% of models
Score components

70%

8.3

User ratings

30%

7.6

Number of reviews

Based on 350 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–¼Worse than 60% of camera-lenses
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Best prices

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Best rankings

Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of camera lens Sigma 15mm F2 8 EX DG Diagonal Fisheye

Technical score
Technical score
5.2/ 10
✕
What it is
An assessment of technical performance for products in the Camera lenses category across these key areas: Mount & Format, Optics & Aperture, Focus & Controls, Stabilization, Build & Handling, Lab Scores.
When it matters
When you want to compare camera lenses based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 88% of models
Score components:

35%

5.2

Optics & Aperture

24%

5.8

Build & Handling

20%

4.8

Focus & Controls

10%

?

Lab Scores

8%

1.0

Stabilization

3%

2.8

Mount & Format

5.2
User score
User score
8.1/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the camera lens.
When it matters
When real-world owner satisfaction and review volume matter to your decision.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 60% of models
Score components

70%

8.3

User ratings

30%

7.6

Number of reviews

Based on 350 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
8.1
Popularity
Popularity
7.6/ 10
✕
What it is
An indicator based on the number of reviews received by the camera lens.
When it matters
When you want to see which camera lenses attract the most buyer attention and review activity.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 54% of models
Popularity:
Sigma 15mm F2 8 EX DG Diagonal Fisheye has a popularity score of 7.6 points, which is higher than 54% of camera lenses.
7.6
Value for money
Value for money
6.3/ 10
✕
What it is
An indicator that combines the camera lens's overall rating with its cost.
When it matters
When you want to know how much overall quality you get for the price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 75% of models
Score components:

60%

5.7

Overall score

40%

7.6

Price

6.3
Lens type
fisheye
Lens mount
Canon EF, Nikon F, Sony A, Pentax K, Sigma SA
Sensor format coverage
Full-frame
Filter thread size
N/A
Teleconverter compatibility
no
Teleconverter compatibility
no
â–¼ Worse than 15% of models
This camera lens does not support teleconverters. 15.3% of camera lenses support teleconverters.
Show more
Minimum focal length
15 mm
Maximum focal length
15 mm
Optical zoom
N/A
Maximum angle of view
180 °
Minimum angle of view
180 °
Show more
Focus motor
screw-drive
Minimum focus distance
0.15 m
Minimum focus distance
0.15 m
★ Better than 93% of models
Market range: <0.18 m – >1.1 m
This camera lens focuses as close as 0.15 m, which is closer than 92.7% of camera lenses and equal to 2.1% of camera lenses.
Maximum reproduction ratio
0.263xx
Maximum reproduction ratio
0.263x
â–² Better than 75% of models
Market range: <0.11 x – >0.39 x
This camera lens reaches a reproduction ratio of 0.263x, which is higher than 74.6% of camera lenses and equal to 2.2% of camera lenses.
Full-time manual focus
no
Full-time manual focus
no
â–¼ Worse than 68% of models
This camera lens does not support full-time manual focus. 68.4% of camera lenses support full-time manual focus.
Internal focusing
yes
Internal focusing
yes
â–² Better than 16% of models
This camera lens supports internal focusing. 83.6% of camera lenses support internal focusing.
Rear-focusing design.
Show more
Optical image stabilization
no
Optical image stabilization
no
â–¼ Worse than 29% of models
This camera lens does not support optical image stabilization. 29.1% of camera lenses include optical image stabilization.
Stabilization effectiveness (CIPA stops)
N/A
Weight
384 g
Weight
384 g
â–² Better than 66% of models
Market range: <171 g – >1.3k g
This camera lens weighs 384 g, which is lighter than 66% of camera lenses.
Lens length
65 mm
Lens length
65 mm
â–² Better than 78% of models
Market range: <46 mm – >189 mm
This camera lens is 65 mm long, which is shorter than 78% of camera lenses and equal to the length of 0.1% of camera lenses.
Lens diameter
73.5 mm
Lens diameter
73.5 mm
â–² Better than 61% of models
Market range: <62.4 mm – >94.7 mm
This camera lens has a diameter of 73.5 mm, which is slimmer than 61.1% of camera lenses and equal to that of 0.6% of camera lenses.
Weather sealing (splashproof)
no
Weather sealing (splashproof)
no
â–¼ Worse than 50% of models
This camera lens does not support weather sealing. 50.3% of camera lenses support weather sealing.
Metal mount
yes
Metal mount
yes
â–² Better than 6% of models
This camera lens uses a metal lens mount. 93.6% of camera lenses use a metal lens mount.
Show more
DxOMark overall score
?
DxOMark sharpness score
?
DxOMark transmission
?
DxOMark distortion
?
DxOMark vignetting
?
Show more

Sigma 15mm F2 8 EX DG Diagonal Fisheye vs the average camera lens

246810TotalMount & FormatOptics & ApertureFocus & ControlsStabilizationBuild & HandlingLab Scores
  • Has focus distance scale
    Focus distance scale
    yes
    â–² Better than 51% of models
    This camera lens has a focus distance scale, the average camera lens does not. 48.6% of camera lenses include a focus distance scale.
  • Has drop-in filter support
    Drop-in / rear filter
    yes
    ★ Better than 93% of models
    This camera lens supports drop-in or rear filters, while the average camera lens does not.
    Rear gelatin filter slot.
  • 27.25 mm shorter lens
    Lens length
    65 mm
    â–² Better than 78% of models
    Market range: <46 mm – >189 mm
    This camera lens is shorter than the average camera lens (65 mm vs 92.25 mm). The average lens has a length of 92.25 mm.
    65 mm vs 92.25 mm
  • 0.15 m shorter minimum focus distance
    Minimum focus distance
    0.15 m
    ★ Better than 93% of models
    Market range: <0.18 m – >1.1 m
    This camera lens has a lower minimum focus distance than the average camera lens (0.2 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.
    0.15 m vs 0.3 m
  • 126 g lighter
    Weight
    384 g
    â–² Better than 66% of models
    Market range: <171 g – >1.3k g
    This camera lens is lighter than the average camera lens (384 g vs 510 g). The average lens weighs 510 g.
    384 g vs 510 g
  • 0.07 x higher maximum reproduction ratio
    Maximum reproduction ratio
    0.263 x
    â–² Better than 75% of models
    Market range: <0.11 x – >0.39 x
    This camera lens has a higher maximum reproduction ratio than the average camera lens (0.3 x vs 0.2 x). The average lens has a maximum reproduction ratio of 0.192 x.
    0.263 x vs 0.192 x
  • 3.5 mm narrower lens barrel
    Lens diameter
    73.5 mm
    â–² Better than 61% of models
    Market range: <62.4 mm – >94.7 mm
    This camera lens is slimmer than the average camera lens (73.5 mm vs 77 mm). The average lens has a diameter of 77 mm.
    73.5 mm vs 77 mm
  • Has drop-in filter support
    Drop-in / rear filter
    yes
    ★ Better than 93% of models
    This camera lens supports drop-in or rear filters, while the average camera lens does not.
    Rear gelatin filter slot.
  • Has focus distance scale
    Focus distance scale
    yes
    â–² Better than 51% of models
    This camera lens has a focus distance scale, the average camera lens does not. 48.6% of camera lenses include a focus distance scale.
  • 0.15 m shorter minimum focus distance
    Minimum focus distance
    0.15 m
    ★ Better than 93% of models
    Market range: <0.18 m – >1.1 m
    This camera lens has a lower minimum focus distance than the average camera lens (0.2 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.
    0.15 m vs 0.3 m
  • 0.07 x higher maximum reproduction ratio
    Maximum reproduction ratio
    0.263 x
    â–² Better than 75% of models
    Market range: <0.11 x – >0.39 x
    This camera lens has a higher maximum reproduction ratio than the average camera lens (0.3 x vs 0.2 x). The average lens has a maximum reproduction ratio of 0.192 x.
    0.263 x vs 0.192 x
  • 27.25 mm shorter lens
    Lens length
    65 mm
    â–² Better than 78% of models
    Market range: <46 mm – >189 mm
    This camera lens is shorter than the average camera lens (65 mm vs 92.25 mm). The average lens has a length of 92.25 mm.
    65 mm vs 92.25 mm
  • 126 g lighter
    Weight
    384 g
    â–² Better than 66% of models
    Market range: <171 g – >1.3k g
    This camera lens is lighter than the average camera lens (384 g vs 510 g). The average lens weighs 510 g.
    384 g vs 510 g
  • 3.5 mm narrower lens barrel
    Lens diameter
    73.5 mm
    â–² Better than 61% of models
    Market range: <62.4 mm – >94.7 mm
    This camera lens is slimmer than the average camera lens (73.5 mm vs 77 mm). The average lens has a diameter of 77 mm.
    73.5 mm vs 77 mm
  • Not weather-sealed
    Weather sealing (splashproof)
    no
    â–¼ Worse than 50% of models
    This camera lens does not support weather sealing, the average camera lens does. 50.3% of camera lenses support weather sealing.
  • 2 fewer aperture blades
    Aperture blades
    7
    â–¼ Worse than 61% of models
    Market range: <7 – >9
    This camera lens has fewer aperture blades than the average camera lens (7 vs 9). The average lens has 9 aperture blades.
    7 vs 9
  • No full-time manual focus
    Full-time manual focus
    no
    â–¼ Worse than 68% of models
    This camera lens does not support full-time manual focus, the average camera lens does. 68.4% of camera lenses support full-time manual focus.
  • No rounded blades
    Rounded aperture blades
    no
    â–¼ Worse than 88% of models
    This camera lens does not use rounded aperture blades, the average camera lens does. 87.8% of camera lenses use rounded aperture blades.
    7 straight blades.
  • 2 fewer aspherical elements
    Aspherical elements
    0
    â–¼ Worse than 70% of models
    Market range: <0 – >3
    This camera lens has fewer aspherical elements than the average camera lens (0 vs 2). The average lens has 2 aspherical elements.
    0 vs 2
  • 2 fewer low-dispersion elements
    Low-dispersion elements
    0
    â–¼ Worse than 76% of models
    Market range: <0 – >4
    This camera lens has fewer low-dispersion elements than the average camera lens (0 vs 2). The average lens has 2 low-dispersion elements.
    0 vs 2
  • Fixed lens hood
    Reversible lens hood
    no
    â–¼ Worse than 81% of models
    This camera lens does not include a reversible lens hood, the average camera lens does. 81.4% of camera lenses include a reversible lens hood.
  • Older release date
    Release date
    2005
    â–¼ Worse than 91% of models
    Market range: <2k – >2k
    This camera lens was released earlier than the average camera lens.
    2005 vs 2016
  • 9.5% worse value for money
    Sigma 15mm F2 8 EX DG Diagonal Fisheye has a worse value-for-money score than the average camera lens (6.29 vs 6.9).
    6.29 vs 6.89
  • 2 fewer aperture blades
    Aperture blades
    7
    â–¼ Worse than 61% of models
    Market range: <7 – >9
    This camera lens has fewer aperture blades than the average camera lens (7 vs 9). The average lens has 9 aperture blades.
    7 vs 9
  • No rounded blades
    Rounded aperture blades
    no
    â–¼ Worse than 88% of models
    This camera lens does not use rounded aperture blades, the average camera lens does. 87.8% of camera lenses use rounded aperture blades.
    7 straight blades.
  • 2 fewer aspherical elements
    Aspherical elements
    0
    â–¼ Worse than 70% of models
    Market range: <0 – >3
    This camera lens has fewer aspherical elements than the average camera lens (0 vs 2). The average lens has 2 aspherical elements.
    0 vs 2
  • 2 fewer low-dispersion elements
    Low-dispersion elements
    0
    â–¼ Worse than 76% of models
    Market range: <0 – >4
    This camera lens has fewer low-dispersion elements than the average camera lens (0 vs 2). The average lens has 2 low-dispersion elements.
    0 vs 2
  • No full-time manual focus
    Full-time manual focus
    no
    â–¼ Worse than 68% of models
    This camera lens does not support full-time manual focus, the average camera lens does. 68.4% of camera lenses support full-time manual focus.
  • Not weather-sealed
    Weather sealing (splashproof)
    no
    â–¼ Worse than 50% of models
    This camera lens does not support weather sealing, the average camera lens does. 50.3% of camera lenses support weather sealing.
  • Fixed lens hood
    Reversible lens hood
    no
    â–¼ Worse than 81% of models
    This camera lens does not include a reversible lens hood, the average camera lens does. 81.4% of camera lenses include a reversible lens hood.
  • Older release date
    Release date
    2005
    â–¼ Worse than 91% of models
    Market range: <2k – >2k
    This camera lens was released earlier than the average camera lens.
    2005 vs 2016

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

A
astrolenses.com
28/12/2020
Summary of the review
Sigma 15mm F2.8 EX DG Diagonal Fisheye - AstroLenses.com
W
whatdigitalcamera.com
01/07/2010
Summary of the review
Sigma 15mm f/2.8 EX DG Fisheye Review
G
gletscherbruch.de
2008
Summary of the review
Fisheye Lens Review: Canon vs. Sigma
(Translated)Show original
N
nadir.it
20/02/2024
Summary of the review
SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE FULL FRAME Review
(Translated)Show original

Third-party reviews

Based on 350 buyer reviews from online shops.
Reviews last updated: July 2026 · How we calculate this
Read buyer reviews on Amazon →

What we like about Sigma 15mm F2 8 EX DG Diagonal Fisheye

  • Excellent center sharpness even when wide open at f/2.8
  • Extremely close minimum focusing distance of 5.9 inches (15cm)
  • Compact and lightweight design compared to other wide-angle optics
  • Solid, high-quality build primarily using metal components
  • Vibrant color rendition and strong contrast
  • Effective flare resistance and ghosting control due to multi-layer coating
  • Built-in petal hood for front element protection
  • Rear gelatin filter holder for specialized creative uses

What we don't like about Sigma 15mm F2 8 EX DG Diagonal Fisheye

  • Slow and noisy autofocus system (traditional screw-drive motor)
  • Significant softening and darkening (vignetting) in the far corners
  • Noticeable chromatic aberration (color fringing) in high-contrast areas
  • Lacks internal autofocus motor (will not AF on some entry-level Nikon bodies or adapters)
  • No modern weather-sealing for harsh environment shooting
  • Severe barrel distortion (inherent to fisheye design) makes it unsuitable for standard architectural shots
  • Inability to use standard front-mounted screw-in filters

Verdict

The Sigma 15mm f/2.8 EX DG Diagonal Fisheye is a compact, full-frame prime lens featuring a 180° diagonal field of view and a bright f/2.8 maximum aperture for low-light versatility. Its optical design consists of 7 elements in 6 groups with multi-layer coatings to reduce flare, and it offers an impressive minimum focusing distance of 15 cm (5.9 inches) with a 1:3.8 maximum magnification. Main pros include its durable metal build, sharp central image quality, and a rear gelatin filter holder for creative control. However, it is noted for a slow and noisy autofocus system, significant corner softness and chromatic aberration at wider apertures, and a lack of weather sealing.

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