Sigma 16mm f/2, 18mm f/1.8, 18mm f/2.8, 20mm f/1.8, 24mm f/1.8, 28mm f/1.8, and 35mm f/1.8 Patents Found

By Louis Ferreira | Published: January 30, 2020


Sigma registered some patients in Japan for 16mm f/2, 18mm f/1.8, 18mm f/2.8, 20mm f/1.8, 24mm f/1.8, 28mm f/1.8, and 35mm f/1.8 designs.

[Publication number] JP 2020-16755 (P2020-16755A)
[Release Date] January 30, 2020
[Title of the Invention] Imaging optical system
[Date of application] July 25, 2018
[Applicant]
[Identification number] 000131326
[Name or name] Sigma Corporation
[PROBLEMS] To provide an imaging optical system which is capable of suppressing fluctuations in image magnification during wobbling, enabling high-precision wobbling operation by reducing the weight of a lens, and obtaining good optical performance, and being optimal for a mirrorless camera. I do.

  • 16mm f/2
  • 18mm f/1.8
  • 18mm f/2.8
  • 20mm f/1.8
  • 24mm f/1.8
  • 28mm f/1.8
  • 35mm f/1.8
Example 1Example 2Example 3
Focal length33.9927.9924.00
F value1.851.851.86
Angle of view67.6378.2490.09
Image height21.6321.6321.63
full length100.0095.0190.00
Example 4Example 5Example 6
Focal length20.5918.6016.54
F value1.861.872.06
Angle of view98.81104.50110.91
Image height21.6321.6321.63
full length100.00100.03104.04
Example 7Example 8Example 9
Focal length18.60
F value2.90
Angle of view104.53
Image height21.63
full length80.00

via asobinet

Posted in 3rd Party Lens, Patents| Tagged , , , , , , , | Leave a comment

The Best Lenses For The Sony a7RIV

By Louis Ferreira | Published: January 29, 2020


The Sony a7RIV has a very demanding sensor that can be hard to optimize glass for. Good Thing Sony Alpha Blog posted a list of tested lenses they recommend for the a7RIV which will help you get the most out of the Sony a7RIV. You can view below or read at great length about testing here.

Best

Exceptional/Excellent (In Order)

  1. Sony Zeiss 50mm F1.4 Planar (exceptional but AF not at the latest performance standard)
  2. Sony 90mm F2.8 Macro
  3. Sony 100mm F2.8 T5.6 STF GM
  4. Sony 24-105mm F4 G
  5. Sony 70-200mm F2.8 GM
  6. Sony 16-35mm F2.8 GM
  7. Sony 100-400mm F4.5-5.6 GM
  8. Sony FE 200-600mm F5.6-6.3 G OSS
  9. Sony 12-24mm F4 G

Exceptional/Excellent 3rd Party (In Order)

  1. Sigma 35mm F1.2 DG DN Art  (Exceptional)
  2. Sigma 105mm F1.4 Art (Exceptional)
  3. Sigma 24-70mm F2.8 DG DN Art  (Excellent)
  4. Tamron 35mm F2.8 Di III OSD M 1: 2 (F053) (Excellent)
  5. Tamron 24mm F2.8 Di III OSD M 1: 2 (F051) (Excellent)
  6. Samyang 85mm F1.4 AF (better than  Sony 85mm F1.4 GM )
  7. Sigma 14-24 F2.8 DG DN Art (Excellent)
  8. Samyang 45mm F1.8 AF

Very Good But Not Ideal

Need Updating

Join our Sony a7 Owners Group and Sony a7 Page, also follow SonyAddict on Facebook and Twitter.

Sony a7RIV: B&H Photo / Amazon / Adorama

Posted in 3rd Party Lens, Sony a7RIV, Sony lenses| Tagged , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

TTArtisan 11mm f/2.8 Now Available For E-Mount

By Louis Ferreira | Published: January 28, 2020


TTArtisan released their TTArtisan 11mm f/2.8 for E-mount on Amazon.

 

  • Design for Sony E-mount camera. Full frame sensor coverage with extreme ultra-wide 180 degrees angle of view on full-frame cameras.
  • 11 Elements in 7 Groups with aperture range of f2.8 – f16 effectively improve the image degradation of the fisheye lens edge.
  • 6.7 inches Minimum focusing distance with 7 Diaphragm blades contributes an entirely new perspective on any shoot.
  • Aluminum Body with anodizing coloring design. Multiple brass components. Compact and Lightweight 17.1oz/485g.
  • Well Compatiable with Sony A7 A7II A7R A7RII A7S A7SII NEX-3, NEX-5, NEX-C3, NEX-5N, NEX-7, NEX-F3, NEX-5R, NEX-6, NEX-3N, NEX-5T, a3000, a5000, a6000, a3500, a5100 a6300, a6500.

Be sure to follow us on Facebook, Twitter, Instagram, Youtube

Posted in 3rd Party Lens| Tagged , | Leave a comment

Lens Tips: Sigma 24-70mm f/2.8 Review – Disappointing Results

By Louis Ferreira | Published: January 27, 2020


The Sigma 24-70mm f/2.8 DG DN has enjoyed high demand since its announcement, but was it deserved? Lens Tips seems to think that it wasn’t due to a variety of flaws they found that while easy to correct with software shouldn’t exist when lenses like the Tamron 28-75mm f/2.8 Di III RXD FE offer superior performance for a lower price. The only advantage Sigma has against the Tamron is that it extends to 24mm according to Lens Tips, but is that a good enough reason to pick the Sigma over the Tamron? You can read Lens Tips full review here.

Pros:

  • very solid and weather- sealed casing,
  • excellent image quality in frame centre,
  • good image quality on the edge of APS-C,
  • acceptable image quality on the edge of full frame,
  • low lateral chromatic aberration,
  • negligible astigmatism,
  • low vignetting on the APS-C/DX sensor,
  • fast, silent, and accurate autofocus,
  • very good performance against bright light.

Cons:

  • very high distortion which, additionally, at the shortest focal length, shows significant moustache deformations,
  • a tad too high spherical aberration at 70 mm,
  • noticeable longitudinal chromatic aberration at 70 mm,
  • monstruous vignetting on full frame.

Be sure to follow us on Facebook, Twitter, Instagram, Youtube

SIGMA 24-70mm F2.8 DG DN Art: B&H Photo / Amazon / Adorama
Tamron 28-75mm f/2.8 Di III RXD FE: B&H Photo / Amazon / Adorama

Posted in 3rd Party Lens| Tagged , , , , , , , , , , , , , , | Leave a comment

Sony Savings Sunday

By Louis Ferreira | Published: January 26, 2020


Amazon is currently offering 15% back on various products including Sony cameras. You can find a list here.

Camera Bodies
Sony a9 (Save $500):
B&H Photo / Amazon / Adorama
Sony a7RIII (Save $300):
B&H Photo / Amazon / Adorama
Sony a7III (Save $200):
B&H Photo / Amazon / Adorama
Sony a7rII (Save $400):
B&H Photo / Amazon / Adorama
Sony a7II (Save $500):
B&H Photo / Amazon / Adorama
Sony a7sII (Save $400):
B&H Photo / Amazon / Adorama

Sony a6500 (Save $400):
B&H Photo / Amazon / Adorama
Sony a6000 (Save $100):
B&H Photo / Amazon / Adorama

FE Lenses
Sony Distagon T* FE 35mm f/1.4 ZA (Save $100):
B&H Photo/Amazon/Adorama
Sony Sonnar T* FE 35mm f/2.8 ZA (Save $50):
B&H Photo/Amazon/Adorama
Sony Zeiss Planar T* 5omm f/1.4 (Save $100):
B&H Photo/Amazon/Adorama
Sony 50mm FE f/1.8 (Save $50):
B&H Photo/Amazon/Adorama
Sony FE 50mm f/2.8 Macro (Save $50):
B&H Photo/Amazon/Adorama
Sony Zeiss Sonnar T* FE 55mm f/1.8 (Save $100):
B&H Photo/Amazon/Adorama
Sony FE 85mm f/1.8 (Save $50):
B&H Photo/Amazon/Adorama
Sony FE 90mm f/2.8 Macro G OSS (Save $100):
B&H Photo/Amazon/Adorama
Sony FE 12-24mm f/4 G (Save $100):
B&H Photo / Amazon / Adorama
Sony Zeiss Vario-Tessar T* FE 16-35mm f/4 ZA OSS (Save $100):
B&H Photo/Amazon/Adorama
Sony Zeiss Vario-Tessar T* FE 24-70mm f/4 ZA OSS (Save $100):
B&H Photo/Amazon/Adorama
Sony FE PZ 28-135mm f/4 G OSS (Save $100):
B&H Photo/Amazon/Adorama 
Sony FE 24-240mm f/3.5-6.3 OSS (Save $100):
B&H Photo/Amazon/Adorama
Sony FE 70-200mm f/4 G OSS Lens (Save $100):
B&H Photo/Amazon/Adorama
Sony FE 70-300mm f/4.5-5.6 G OSS (Save $100):
B&H Photo/Amazon/Adorama

NEX Lenses
Sony 20mm f/2.8 Alpha E-mount (Save $50):
B&H Photo / Amazon / Adorama
Sony E 10-18mm f/4 OSS (Save $100):
B&H Photo / Amazon / Adorama
Sony Zeiss Vario-Tessar T* E 16-70mm f/4 ZA OSS (Save $100):
B&H Photo / Amazon / Adorama
Sony E 18-200mm f/3.5-6.3 OSS LE (Save $50):
B&H Photo / Amazon / Adorama

Zeiss Batis and Loxia Savings:
Zeiss Batis 135mm (Save $177): B&H Photo/Amazon/Adorama
Zeiss Batis 18mm (Save $351): B&H Photo/Amazon/Adorama
Zeiss Batis 25mm (Save $302): B&H Photo/Amazon/Adorama
Zeiss Batis 85mm (Save $184): B&H Photo/Amazon/Adorama

Additional Zeiss Savings

Voigtlander Heliar-Hyper Wide 10mm f/5.6 ASPH (Save $100):
B&H Photo / Amazon / Adorama
Voigtlander Super Wide-Heliar 15mm f/4.5 ASPH III (Save $100):
B&H Photo / Amazon / Adorama
Voigtlander 21mm f/1.4 FE (Save $100):
B&H Photo / Amazon / Adorama
Voigtlander Color-Skopar 21mm f/3.5 ASPH (Save $100):
B&H Photo / Amazon / Adorama
Voigtlander Nokton 35mm f/1.4 FE (Save $200):
B&H Photo / Amazon / Adorama
Voigtlander Nokton 40mm f/1.2 FE (Save $150):
B&H Photo / Amazon / Adorama
Voigtlander Nokton 50mm f/1.2 FE (Save $100):
B&H Photo / Amazon / Adorama
Voigtlander MACRO APO-LANTHAR 65mm f/2 ASPH (Save $100):
B&H Photo / Amazon / Adorama
Voigtlander MACRO APO-LANTHAR 110mm f/2.5 (Save $100):
B&H Photo / Amazon / Adorama

Lens Deals
E-Mount Lens Deals
Mitakon Zhongyi Speedmaster 35mm f/0.95 Mark II Save $150
Sigma E-mount Lenses
Zeiss E-mount Lenses
Laowa Savings

Accessory Deals
Lexar Memory Cards
Memory Card Savings
Power Banks

General Deals
Deal Zone
Featured Deals
Mac Book Pro Savings save up to$1,500
Apple Holiday Savings save up to $500

New Apple iPad Pro and More: B&H Photo / Adorama
New Apple iMac Pro: B&H Photo / Adorama
New Apple MBP: B&H Photo / Adorama
MacBook Pro (Savings still available): B&H Photo

Software Deals
Luminar 4 & Aurora HDR 2019 (Savings code FUJIADDICT)
ON1 Photo RAW 2020
Photolemur
Picktorial

Posted in Deals| Leave a comment

Save $500 on Sigma 28mm f/1.4 DG HSM ART

By Louis Ferreira | Published: January 25, 2020


You can save $500 on the Sigma 28mm f/1.4 DG HSM ART on Adorama for a limited time.

Posted in 3rd Party Lens| Tagged , , | Leave a comment