Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion ...
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Transcript of Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion ...
![Page 1: Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion Vignette (Light Falloff) Chromatic Aberration.](https://reader035.fdocuments.in/reader035/viewer/2022062216/56649dc55503460f94ab91ff/html5/thumbnails/1.jpg)
S
Lens ComparisonsStefano Prezioso
![Page 2: Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion Vignette (Light Falloff) Chromatic Aberration.](https://reader035.fdocuments.in/reader035/viewer/2022062216/56649dc55503460f94ab91ff/html5/thumbnails/2.jpg)
Lens Image Characteristics
Resolution (Sharpness)
Distortion
Vignette (Light Falloff)
Chromatic Aberration
![Page 3: Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion Vignette (Light Falloff) Chromatic Aberration.](https://reader035.fdocuments.in/reader035/viewer/2022062216/56649dc55503460f94ab91ff/html5/thumbnails/3.jpg)
Resolution
How “sharp” the lens is Contrast Resolving Power of
Detail
Measured and Quantified in MTF Charts
Lenses “Out Resolve” the Sensor
![Page 4: Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion Vignette (Light Falloff) Chromatic Aberration.](https://reader035.fdocuments.in/reader035/viewer/2022062216/56649dc55503460f94ab91ff/html5/thumbnails/4.jpg)
Distortion
Three types Pincushion Barrel Mustache
Most noticeable at edges/corners
Usually Correctable
![Page 5: Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion Vignette (Light Falloff) Chromatic Aberration.](https://reader035.fdocuments.in/reader035/viewer/2022062216/56649dc55503460f94ab91ff/html5/thumbnails/5.jpg)
Vignette
Amount of Light Fall Off in Lens
Increases as Distance from Center Increases
Measured in Exposure Value (EV) Stops
Correctable in Post Processing
![Page 6: Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion Vignette (Light Falloff) Chromatic Aberration.](https://reader035.fdocuments.in/reader035/viewer/2022062216/56649dc55503460f94ab91ff/html5/thumbnails/6.jpg)
Chromatic Aberration
Different Colors Converge at Different Points
Good Lenses are Corrected
Correctable in Post-Processing
![Page 7: Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion Vignette (Light Falloff) Chromatic Aberration.](https://reader035.fdocuments.in/reader035/viewer/2022062216/56649dc55503460f94ab91ff/html5/thumbnails/7.jpg)
Nikon Brand Lens Candidates
Nikkor AF-S 14-24 f/2.8 G ED
Nikkor AF 14mm f/2.8 D ED
Nikkor AF-S DX 10-24mm f/3.5-4.5G ED
Nikkor AF-S 12-24mm f/4G IF-ED DX
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Sigma Brand Lens Candidates
Sigma EX 10-20mm f/3.5 EX DC HSM
Sigma AF 10-20mm f/4-5.6 DC EX HSM
Sigma AF 12-24mm f/4.5-5.6 EX HSM DG
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Tamron/Tokina/Samyung Lens Candidates
Tamron SP AF 10-24mm F/3.5-4.5 Di II LD Aspherical IF
Tokina AF 12-24mm f/4 AT-X Pro DX
Samyang 14 mm f/2.8 IF ED MC Aspherical
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Pricing Overview
Nikkor AF-S 14-24 f/2.8 G ED $1549
Nikkor AF 14mm f/2.8 D ED $1390
Nikkor AF-S DX 10-24mm f/3.5-4.5G ED $780
Nikkor AF-S 12-24mm f/4G IF-ED DX $900
Sigma EX 10-20mm f/3.5 EX DC HSM $649
Sigma AF 10-20mm f/4-5.6 DC EX HSM $479
Sigma AF 12-24mm f/4.5-5.6 EX HSM DG $859
Tamron SP AF 10-24mm F/3.5-4.5 Di II LD Aspherical IF
$474
Tokina AF 12-24mm f/4 AT-X Pro DX $499
Samyang 14 mm f/2.8 IF ED MC Aspherical $426
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Resolution at f/8 14mm
Lens Center f/8
Edge f/8
Extreme f/8
Nikkor AF-S 14-24 f/2.8 G ED @ f/4 2212.5 2143.5 2051.5
Nikkor AF 14mm f/2.8 D ED 2176 1981 1750.5
Nikkor AF-S DX 10-24mm f/3.5-4.5G ED 2099 2038 1863
Nikkor AF-S 12-24mm f/4G IF-ED DX @ 18mm
2113 1898.5 1839.5
Sigma EX 10-20mm f/3.5 EX DC HSM @ 15mm
2144 2020 1861
Sigma AF 10-20mm f/4-5.6 DC EX HSM @ f/5.6
2181 1993 1780
Sigma AF 12-24mm f/4.5-5.6 EX HSM DG @ 17mm
2037 2000.5 No Data
Tamron SP AF 10-24mm F/3.5-4.5 Di II LD Aspherical IF
2100 1884 1479
Tokina AF 12-24mm f/4 AT-X Pro DX @ f/5.6 18mm
2104.5 1890.5 1756
Samyang 14 mm f/2.8 IF ED MC Aspherical Awesome
Superb Great
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Bad Resolution Results
Nikkor AF 14mm f/2.8 D ED
Nikkor AF-S 12-24mm f/4G IF-ED DX
Sigma AF 10-20mm f/4-5.6 DC EX HSM
Tamron SP AF 10-24mm F/3.5-4.5 Di II LD Aspherical IF
Tokina AF 12-24mm f/4 AT-X Pro DX
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Distortion Results
Nikkor AF-S DX 10-24mm f/3.5-4.5G ED
Very Good from 14mm-18mm
Nikkor AF-S 14-24 f/2.8 G ED 14mm: Very Slight 18mm+: Exceptional
Sigma EX 10-20mm f/3.5 EX DC HSM
15mm: Almost Perfect
Sigma AF 12-24mm f/4.5-5.6 EX HSM DG
Very Good throughout
Samyang 14 mm f/2.8 IF ED MC Aspherical
Absolutely Awful
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Chromatic Aberration Results
Nikkor AF-S DX 10-24mm f/3.5-4.5G ED
Moderate
Nikkor AF-S 14-24 f/2.8 G ED Good
Sigma EX 10-20mm f/3.5 EX DC HSM
Moderate
Sigma AF 12-24mm f/4.5-5.6 EX HSM DG
Terrible
Samyang 14 mm f/2.8 IF ED MC Aspherical
Stunning
![Page 16: Lens Comparisons Stefano Prezioso. Lens Image Characteristics Resolution (Sharpness) Distortion Vignette (Light Falloff) Chromatic Aberration.](https://reader035.fdocuments.in/reader035/viewer/2022062216/56649dc55503460f94ab91ff/html5/thumbnails/16.jpg)
Vignetting Results
Nikkor AF-S DX 10-24mm f/3.5-4.5G ED
0.51 EV
Nikkor AF-S 14-24 f/2.8 G ED 0.2 EV
Sigma EX 10-20mm f/3.5 EX DC HSM
0.45 EV
Samyang 14 mm f/2.8 IF ED MC Aspherical
1.36 EV
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DxO Optics Pro 6
Automatically corrects… everything.
Calibrated to specific camera and lens set up
Compatible with only certain lens/camera combinations
$169 for standard edition. EDU discount?
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Final Picks
Sigma 10mm-20mm f/3.5 Distortion free from 14mm-20mm Sharp Decent CA and Vignetting Characteristics
Samyang 14mm f/2.8 Super Sharp Perfect CA Characteristics Bad Distortion and Vignetting
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Surprise Lens
Sigma 14mm f/3.5 Older Lens (Replaced by f/2.8 version) No Profiles for Corrections (To my knowledge) Sharp, Good Distortion Characteristics Long Term Loan… Free