Showing posts with label Sigma. Show all posts
Showing posts with label Sigma. Show all posts

Friday, April 4, 2014

Sony A7r and NEX APS-C Lenses

sony a7r crop lenses nex touit

Carl Zeiss 32mm Touit Lens on Sony A7r


Here are a bevy of autofocus lenses made for the Sony NEX system mounted on the new Sony A7r. The red boxes show a 1:1 or square aspect ratio and a 16:9 aspect ratio. The lenses have rear baffles which were not removed. Most of the prime lenses can provide a square image with a little bit of vignetting. 16:9 images show heavy vignetting, maybe we can extract a 2.35:1 Cinemascope / Panavision image with the A7r's 36 megapixels to play with.

sony a7r crop lenses nex touit

Carl Zeiss 12mm Touit Lens on Sony A7r


sony a7r crop lenses nex touit

Sony 16mm Pancake with Ultra Wide Adapter on Sony A7r



sony a7r crop lenses nex touit

Sigma 19mm Lens on Sony A7r


sony a7r crop lenses nex touit

Sigma 30mm Lens on Sony A7r


sony a7r crop lenses nex touit

Sony 55-210mm OSS Lens @55mm on Sony A7r


sony a7r crop lenses nex touit

Sony 55-210mm OSS Lens @98mmLens on Sony A7r


sony a7r crop lenses nex touit

Sony 55-210mm OSS Lens @210mm Lens on Sony A7r


Monday, December 30, 2013

Canon 6D vs NEX-7 with Speedbooster

Canon 6D vs Sony NEX-7 with Metabones Speedbooster


Tarocoo wanted to see what the NEX-7 with the Canon EF to E-mount Speedbooster can do against his full frame Canon 6D. He had access to a multitude of manual focus lenses which can be used on both E-mount and EF mount (EOS). The Speedbooster's final EFOV on the NEX APS-C sensor is about 1.1x the focal lenght - so the EFOV is close to the Canon 6D with the full frame sensor. The lenses used are:

  • Sigma 24mm f/2.8
  • Sigma 28mm f/2.8
  • Olympus 35mm f/2.0
  • Sigma 50mm f/1.4

The images will show the whole scene at wide open to an aperture of f/11. It will be followed by center and corner crops at same aperture range. Here we go...

Canon 6D vs NEX-7 Speedbooster Sigma 24mm f/2.8


nex-7 speedbooster canon 6d sigma 24mm
nex-7 speedbooster canon 6d sigma 24mm

nex-7 speedbooster canon 6d sigma 24mm
nex-7 speedbooster canon 6d sigma 24mm

nex-7 speedbooster canon 6d sigma 24mm

nex-7 speedbooster canon 6d sigma 24mm


Canon 6D vs NEX-7 Speedbooster Sigma 28mm f/2.8


nex-7 speedbooster canon 6d sigma 28mm
nex-7 speedbooster canon 6d sigma 28mm

nex-7 speedbooster canon 6d sigma 28mm
nex-7 speedbooster canon 6d sigma 28mm

nex-7 speedbooster canon 6d sigma 28mm
nex-7 speedbooster canon 6d sigma 28mm


Canon 6D vs NEX-7 Speedbooster Olympus 35mm f/2.0


nex-7 speedbooster canon 6d Olympus 35mm
nex-7 speedbooster canon 6d Olympus 35mm

nex-7 speedbooster canon 6d Olympus 35mm
nex-7 speedbooster canon 6d Olympus 35mm

nex-7 speedbooster canon 6d Olympus 35mm
nex-7 speedbooster canon 6d Olympus 35mm

nex-7 speedbooster canon 6d Olympus 35mm
nex-7 speedbooster canon 6d Olympus 35mm


Canon 6D vs NEX-7 Speedbooster Pentax 50mm f/1.4


nex-7 speedbooster canon 6d pentax 50mm
nex-7 speedbooster canon 6d pentax 50mm

nex-7 speedbooster canon 6d pentax 50mm
nex-7 speedbooster canon 6d pentax 50mm

nex-7 speedbooster canon 6d pentax 50mm
nex-7 speedbooster canon 6d pentax 50mm

nex-7 speedbooster canon 6d pentax 50mm
nex-7 speedbooster canon 6d pentax 50mm

nex-7 speedbooster canon 6d pentax 50mm
nex-7 speedbooster canon 6d pentax 50mm

We think the samples speak well for the NEX-7 and the Metabones Speedbooster.

Thanks to Tarocco for performing the tests and sharing the samples with us.

Friday, April 12, 2013

NEX-7 with Speed Booster vs Nikon D600

nikon d600 nex-7 metabone speed booster comparison

Sony NEX-7 with Speed Booster vs Nikon D600


TheCameraStoreTV posted their hands on video with the Metabone Speed Booster for NEX cameras. They used the Canon EOS to NEX Speed Booster lens adapter on the NEX-7.

In the video they compare the NEX-7 and the Nikon D600, a full frame camera, to see if there are perceptible differences. They used a Sigma 35mm f/1.4 DG HSM lens on both cameras. The exposures were set to be equal at ISO 200 and aperture set at f/8. The NEX-7 with the Speed Booster registered and aperture of f/5.6 due to the full stop of light from the adapter. The D600 registered f/8. The image above is a side by side comparison at 400% enlargement. Would you be able to tell the difference?

Check out the full hands on video with the Speed Booster below.

Metabones Speed Booster Review by TheCamaeraStore


Thanks Jordan and TheCamerStore!

The Metabones Speed Booster can be found here.

Tuesday, January 29, 2013

Sigma 60mm DN Lens for Sony NEX Cameras Announced

sony nex-7 sigma 60mm

Mockup of Sigma 60mm on NEX-7


Sigma is adding a third lens to their Digital Neo series for E-mount cameras. It is the 60mm f/2.8 macro in native E-mount. The lens is similar to the one found in Sigma's new DP3 Merrill.

Here is Sigma's description of the 60mm DN.
Sigma 60mm F2.8 DN- Featuring the natural perspective of mid-range telephoto lenses, together with a shallow depth of field, this lens allows the photographer to capture a single part of a subject with great bokeh effects. It has an angle of view equivalent to 90mm on the E-mount system (35mm equivalent focal length). The minimum focusing distance is 19.7 inches; the maximum magnification is 1:7.2. This lens also contains Special Low Dispersion (SLD) glass, which helps minimize axial and transverse chromatic aberration.

sony nex-5r sigma 60mm macro

Mockup of Sigma 60mm on NEX-5R


Sigma Corporation announces four new lenses at CP+ Camera and Photo Imaging Show 2013
YOKOHAMA, Japan — Jan. 29, 2013—Sigma Corporation of America a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines of lenses, cameras and flashes, today announced the release of four new lenses for the ART product line, including three lenses for mirrorless interchangeable lens cameras and one lens for DSLR cameras with APS-C size sensors. This announcement comes at the start of the CP+ Camera and Photo Imaging Show 2013 this week in Yokohama, Japan.

The new and updated Sigma lenses include the 30mm F1.4 DC HSM, which will be available in Sigma, Canon and Nikon mounts, and the 30mm F2.8 DN, 19mm F2.8 DN and 60mm F2.8 DN lenses, which are available for Sony E-Mount camera systems. Pricing and availability on all of these lenses has yet to be announced.

The 60mm F2.8 DN lens is entirely new to the Sigma lineup, while the 30mm F1.4 DC HSM and the 30mm F2.8 DN and 19mm F2.8 DN lenses are existing focal lengths that have been redesigned with enhanced optical performance and included as part of Sigma’s new Global Vision category restructuring. All three DN lenses incorporate telecentric optical designs and a linear, auto focusing motor that ensures accurate and quiet focusing for video recording. They also boast metal exteriors and a simply shaped focus ring, with varying textures to distinguish each part of the lens. In addition, DN users can choose between a black or silver finish to match their favorite equipment.

“We’re really proud of the super sharp lenses we’ve produced in the past year and these new Art lenses will continue to impress our fans and critics alike. They’re ideal for the landscape, portrait, still-life, close-up and casual photographer who values creative, dramatic outcomes above compactness and multifunction,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “The lenses are entirely made in Japan and they boast the new product line’s sleek design and enhanced quality control. We’re quite proud of these changes – and additions – to our lens lineup; they’re further evidence of Sigma’s forethought in this fast-moving industry.”

sony nex-7 sigma dn art 19mm 30mm 60mm lenses

Mockup of Sigma Art DN Lenses on NEX-7


The Sigma 19mm and 30mm DN E-mount lenses have been upgraded and added to the Sigma Art line. The previous Sigma 19mm and 30mm are discontinued and were available at a discount. The improvements are a new metal body, quieter autofocus mechanism for videos, and enhanced optical performance.

Here is Sigma's description of the new 19mm DN and 30mm DN for Sony NEX cameras.
Sigma 19mm F2.8 DN – This high-performance, wide-angle lens has an angle of view equivalent to 28.5mm on the E-mount system (35mm equivalent focal length). As a wide-angle lens with excellent mobility, it is ideal for studio photography, architecture and starry skies. Its minimum focusing distance is 7.9 inches and its maximum magnification is 1:7.4.

Sigma 30mm F2.8 DN – This high-performance, standard lens has an angle of view equivalent to 45mm on the E-mount system (35mm equivalent focal length). This lens, which is perfect for casual and formal portraiture, documentary photography, travelogues and everyday shooting, includes a double-sided aspherical lens that enhances its optical performance. Its minimum focusing distance of 11.8 inches and its maximum magnification is 1:8.1.

Sigma, we would love to see that Sigma 30mm f/1.4 DC HSM in native E-mount as well.

Thanks Sigma!

Friday, January 18, 2013

Sigma 19mm and 30mm Two For One Deal

sigma 19mm 30mm sony nex deal

Get Both the Sigma 19mm and 30mm EX DN Lenses for $199


Here's a great deal from B&H Photo for the Sigma autofocus lenses for the Sony NEX system. Get the Sigma 19mm and 30mm EX Digital Neo lenses for $199. Each are normally priced at $199. The kit shows as backordered but B&H states that they can be ordered and they will ship and charge when the Sigma lenses come into stock. Happy ordering.

Thursday, October 11, 2012

NEX-7 with Voigtlander Sigma and Fuji Lenses in Turkey

NEX-7 with Voigtlander 15mm, Sigma 30mm, and Fujinon 50mm lens


Here is a set of pictures by Emmanuel C. taken in Turkey with his Sony NEX-7. He brought along a pair of adapted manual focus lenses: Voigtlander 15mm f/4.5 Super Wide Heliar and the Fujinon 50mm f/1.9 lens. He also used the native E-mount autofocus the Sigma 30mm f/2.8 DN lens. This provides a nice set covering 22.5mm, 45mm, and 75mm equivalent field of view.

Check out Emmanuel's website at EmmanuelChampagne.fr.

Wednesday, May 2, 2012

NEX-7 Lens Resolution Tests via Imatest at LensRentals.com

R.C. at LensRentals.com performed a test on several lenses on the NEX-7. The lenses comprised of the native E-mount lenses from Sony and Sigma. A Leica Summilux was also thrown into the mix since it's done well in previous Imatest challenges.

The numbers below represent MTF-50 at aperture f/4. The NEX-7 was set at ISO 400 and each lens was manually focused and bracketed so that focus errors were eliminated.

from Imatest.
Device or system sharpness is measured as a Spatial Frequency Response (SFR), also called Modulation Transfer Function (MTF). MTF is the contrast at a given spatial frequency (measured in cycles or line pairs per distance) relative to low frequencies. The 50% MTF frequency correlates well with perceived sharpness— much better than the old vanishing resolution measurement, which indicated where the detail wasn’t.

Now let's look at the test results at aperture f/4.
Lens Max Avg
Sony 16mm f/4 915 646
Sigma 19mm f/4 920 765
Sony 24mm f/4 1000 795
Sony 18-200 f/4 855 680
Sony 18-55 @20 f/4 855 640
Sony 30mm f/4 940 725
Sigma 30mm f/4 1040 840
Sony 50mm f/4 885 835
Leica 50mm f/4 1020 870


sony nex-7 lens test mtf

Photo by jerome_Munich


What can we learn from this test? At f/4 most of these lenses, from $4000+ Leicas to $200 Sigmas, will be separated by the technique of the photographer with regards to resolution. Keep the camera still when taking a shot by using a high shutter speed, a tripod, a remote shutter release, etc. If you want maximum resolution, it looks like the Sigma 30mm DN Lens is the best bang for the buck.

Here's a quick quote from the article regarding the NEX-7 vs the Canon 5d Mark III and the Nikon D800.
  • (NEX-7) resolution at f/4 with a good lens is about what we see with a Canon 5DII or III (1050 / 800 or so LP/IH) with a good lens, not quite as good as a Nikon D800 (1200 / 1000 LP / IH).


Read the complete NEX-7 Lens Resolution Comparison by RC at LensRentals.com.

Read more about sharpness from Imatest.

Thanks RC!

Tuesday, March 27, 2012

NEX Sigma 19mm and 30mm Lenses in Stock at Amazon

The Sigma 19mm and 30mm f/2.8 EX Digital Neo (DN) lenses are in stock at Amazon. These are the first 3rd part autofocus *prime* lenses for the NEX system. The 19mm EX DN translates to 28.5mm equivalent FOV on 35mm and the 30mm EX DN translates to 45mm EFOV. The tests below are by jerome_munich.

sony nex sigma 19mm lens

Sigma 19mm f/2.8 EX DN on NEX-7 by jerome_Munich



sony nex sigma 30mm lens

Sigma 30mm f/2.8 EX DN on NEX-7 by jerome_Munich



Check out more photos by jerome_munich.

Tuesday, January 10, 2012

NEX Sigma 19mm and 30mm DN Lenses Announced

Here are quick mockups of what the new Digital Neo lenses from Sigma will look like on the Sony NEX-5N. Both prime lenses from Sigma will work with the NEX's autofocus system. The 19mm f/2.8 DN lens translates to an FOV of 28.5mm and the 30mm f/2.8 DN translates to an FOV of 45mm due to the NEX APS-C sensor. Both lenses have a maximum aperture of f/2.8 and f/22 as a minimum. The filter size is also the same at 46mm. The Sigma Digital Neo lens system was announced at CES 2012. We are hoping for more DN lenses soon.


sony nex sigma 30mm lens

NEX-5N with Sigma 30mm f/2.8 Digital Neo Lens



The Sigma 30mm f/2.8 DN is a 7 element in 5 group lens construction. The lens weighs a mere 4.8 oz (135 grams). The minimum focus distance for the 30mm DN is 11.8 inches which means a maximum magnification of 1:8.1.

from Sigma


This high-performance standard lens is designed exclusively for mirrorless interchangeable lens cameras and has the equivalent angle of view as a 45mm (35mm equivalent focal length) on the E-mount system.

Two glass mold aspherical lenses, including a double-sided aspherical lens, provide excellent correction for all types of aberration. The inner focusing system corrects the fluctuation of aberration to maintain image quality regardless of the focal distance. Sigma’s Super Multi-Layer Coating reduces flare and ghosting as well as provides sharp and high contrast images even at the maximum aperture. The superior telecentric optical design improves the image quality throughout the frame. The optical design also allows the lens to be compact and lightweight. This lens benefits from a newly developed linear AF motor which moves the lens elements directly without the need for gears or the drive of other mechanical parts. This system ensures accurate and quiet autofocusing, making the lens suitable for video recording as well as still photos. The lens features a rounded 7 blade diaphragm creating an attractive blur to the out of focus areas of the image. This Sigma 30mm F2.8 EX DN has a minimum focusing distance of 30cm/11.8in and a maximum magnification ratio of 1:8.1.



sony nex sigma 19mm lens

NEX-5N with Sigma 19mm f/2.8 DN Lens



The Sigma 19mm f/2.8 DN is a 8 element in 6 group lens construction. The lens weighs 4.9 oz (140 g). The minimum focus distance for the 30mm DN is 7.9 inches which means a maximum magnification of 1:7.4.

from Sigma


This high-performance wide angle lens is designed exclusively for mirrorless interchangeable lens cameras and has the equivalent angle of view as a 28.5mm (35mm equivalent focal length) on the E-mount systems.
Three glass mold aspherical lenses provide excellent correction for distortion, color aberration and field curvature. The inner focusing system corrects the fluctuation of aberration to maintain image quality regardless of the focal distance. Sigma's Super Multi-Layer Coating reduces flare and ghosting and provides sharp and high contrast images even at the maximum aperture. The superior telecentric optical design improves image quality throughout the frame. This lens benefits from a newly developed linear AF motor which moves the lens elements directly without the need for gears or the drive of other mechanical parts. This system ensures accurate and quiet autofocusing, making the lens suitable for video recording as well as still photos. The lens features a rounded 7 blade diaphragm creating an attractive blur to the out of focus areas of the image. This Sigma 19mm F2.8 EX DN has a minimum focusing distance of 20cm/7.9in and a maximum magnification ratio of 1:7.4.


Thanks Sigma!