Showing posts with label Carl Zeiss. Show all posts
Showing posts with label Carl Zeiss. Show all posts

Monday, October 21, 2013

Sony A7r and A7 Focus Speeds

sony a7r zeiss 35mm sonnar

Sony A7r with Zeiss 35mm f/2.8 Sonnar

One of the major differences between the Sony Alpha 7r (A7r) and the Alpha 7 (A7) is their focusing systems. Both cameras have contrast-detection autofocus but the Sony A7 incorporates phase-detection autofocus for a hybrid system which adds speed and accuracy to locking focus. The videos show a slight difference in locking focus for both cameras. More information below.

Sony A7 Focus Speed with Zeiss 35mm f/2.8 Sonnar

Sony A7r Focus Speed with Zeiss 55mm f/1.8 Sonnar

Sony Alpha 7rSony Alpha 7
Focus system TypeContrast-detection AFFast Hybrid AF
(phase-detection AF/contrast-detection AF)
Focus point25 points35mm full-frame:
     117 points (phase-detection AF)
     99 points (phase-detection AF)
     25 points (contrast-detection AF)

Sony A7r vs A7 Focusing System Comparison


Contrast Detect Autofocus of the Sony A7 and A7r

The Sony A7r's autofocus system as explained by Sony:
Fast Intelligent AF

Fast Intelligent AF provides extremely fast AF performance despite the employment of a full-frame sensor. In fact, it achieves top-level AF speed in the full-frame category through the support of various advances including new lightning-fast BIONZ X, high-speed full-frame image sensor output, and a newly developed Spatial Object Detection AF algorithm that conducts focusing analysis in real-time using spatial frequency information to optimally control the lens drive.


Phases Detect Autofocus of the Sony A7

The Sony A7's autofocus system as explained by Sony:
Enhanced Fast Hybrid AF

Enhanced Fast Hybrid AF combines speedy phase-detection AF with highly accurate contrast-detection AF, which has been accelerated through a new Spatial Object Detection algorithm, to achieve among the fastest autofocusing performance of any full-frame camera. First, phase-detection AF with 117 densely placed phase-detection AF points* swiftly and efficiently moves the lens to bring the subject nearly into focus. Then contrast-detection AF (Fast Intelligent AF) with wide AF coverage fine-tunes the focusing in the blink of an eye. Performance is dramatically improved beyond that of previous Fast Hybrid AF systems through a number of major advances in high-speed contrast-detection AF, including faster communication with the lens made possible by the advanced Spatial Object Detection algorithm. Other advances include optimized image-sensor data read-out, swifter processing of AF-related data by the new BIONZ X image processing engine, and a more efficient lens drive that reduces back-and-forth lens movement.

* 99 points when an APS-C lens compatible with Fast Hybrid AF is mounted.

sony a7r zeiss 35mm sonnar

Sony A7r with Zeiss 55mm f/1.8 Sonnar

Saturday, October 19, 2013

Sony A7r with Contax G 28mm Biogon

sony a7r contax zeiss  28mm biogon

Some glamour shots of the new Sony A7r with a Contax G 28mm f/2.8 Biogon lens from forum contributors dabpes, robsiqi, and 四核八线程. The Carl Zeiss Contax G lenses are mounted using an E-mount lens adapter.

sony a7r contax zeiss  28mm biogon

sony a7r contax zeiss  28mm biogon

sony a7r contax zeiss  28mm biogon

Pre-order your Sony Alpha A7r here.

Thursday, October 17, 2013

Sony NEX E-mount Lens Roadmap 2013-2015

sony nex full frame lens roadmap

Sony NEX Lens Roadmap for 2013 and Beyond

Along with the introduction of the new full frame e-mount cameras, A7 and A7r, Sony updated the lens roadmap for 2013 and beyond. There are at least 15 full frame e-mount lenses coming by 2015. The first five lenses announced are
  • Sont FE 28-70mm f/3.5-5.6 OSS SEL2870
    • Kit Lens for the Sony A7 Bundle
    • EFOV of 42-105mm on NEX APS-C cameras
  • Carl Zeiss 35mm f/2.8 FE Sonnar ZA SEL35F28Z $798
    • EFOV of 52mm on NEX APS-C cameras
  • Carl Zeiss 55mm f/1.8 FE Sonnar ZA SEL55F18Z $998
    • EFOV of 82mm on NEX APS-C cameras
  • Carl Zeiss 24-70mm f/4 FE Vario-Tessar ZA OSS SEL2470FZ $1198
    • EFOV of 36-105mm on NEX APS-C cameras. As a NEX-7 user this is the most appealing one.
  • Sony FE 70-200mm f/4 G OSS SEL70200G
    • EFOV of 105-300mm on NEX APS-C cameras
The first four will be available this year, they are pictured below. The Sony G zoom will be the 1st of six for 2014 and at least five more lenses will be released in 2015. These lenses are compatible with all E-mount cameras include the NEX, VG Camcorders, and FS Camcorder which means Autofocus, auto-aperture, and image stabilization (lens dependent).
sony a7r zeiss 35mm sonnar

Sony A7r with the Zeiss 35mm Sonnar For Size Reference


Carl Zeiss 35mm f/2.8 Sonnar SEL35F28Z


Carl Zeiss 55mm f/1.8 Sonnar SEL55F18Z


Carl Zeiss FE 24-70mm f/4 Vario Tessar ZA OSS

sony alpha nex full frame lens roadmap

Available E-mount Lenses from Sony and Zeiss

Wednesday, July 10, 2013

Sony RX1R and RX100 Mark II Q&A

sony rx1r rx100m size

RX1R vs RX100M II Size Comparison

Sony RX1R and RX100 Mark II Question and Answer Session

Sony and Amazon teamed up to gather question from google+, twitter, amazon, and the rest of the social media world to coincide with the release of the Sony RX1R and the RX100M II. Both can be pre-ordered from Amazon by clicking on their images below. Set aside an hour and learn more about the RX1R and RX100M II.

sony rx1r rx100m faq

Sony RX1R Full Frame Compact Anti-Alias Filter Removed Camera

sony rx1r rx100m faq

sony rx1r rx100m faq

Sony RX100M II PocketSized Zoom NFC Enabled Camera

Monday, July 1, 2013

Fotodiox Vizelex RhinoCam for NEX Cameras

nex fotodiox rhinocam hasselblad

Sony NEX-5N with a Hasselblad 50mm Distagon via RhinoCam
Photo by PCMag"

The RhinoCam allows us to use NEX E-mount cameras with medium format lenses. The RhinoCam has lens adapters for Pentax 645, Mamiya 645, or Hasselblad V lenses. The NEX is mounted on a shift mount while the lens is fixed. The NEX is then shifted to cover the image circle projected by the medium format lens. Each image is then stitched by an imaging software.

Here's an in-depth video walk through of the RhinoCam.

Vizelex RhinoCam Quick Start Guide

Check out PCMag's review of the RhinoCam.

Click here for more information on the Vizelex RhinoCam at

Friday, June 28, 2013

Sony RX1R Removes Anti-Alias Filter

Sony Cybershot RX1R Full Frame Sensor

Sony RX1R Hands On with Olivia

The Sony Cybershot RX1R, R = resolution, takes away the Sony RX1's optical low pass (anti-alias) filter to improve resolution. Other cameras that offer AA less cameras are Leica, Nikon, and Ricoh. The RX1R and RX1 will co-exist and share the same accessories.

Here is the Sony RX1R press release.

A new sister version of Sony’s acclaimed Cyber-shot™ RX1 full-frame compact camera satisfies the most critical photographer’s hunger for sharper, more detailed pictures.

Building on the awesome imaging power of the RX1, the RX1R takes pixel-perfect picture quality to new heights. The model’s ‘R’ suffix denotes a further improvement in the pocket-sized camera’s already spectacular resolution.

In common with many DSLR cameras, the original Cyber-shot™ RX1 features an optical low-pass filter (OLPF) in front of the sensor to suppress unwanted moiré and colour artefacts. The enthusiast-oriented RX1R removes this low-pass filter, guaranteeing flawless capture of fine details without any blurring or dispersion. To compensate for the OLPF’s removal, the camera’s processing functions have been optimised to maintain image sharpness without compromising lens/sensor performance*.

Bringing new levels of realism to landscapes and other finely-detailed subjects, the modified edition RX1R lets photo enthusiasts express their creativity with unprecedented clarity. While weight and dimensions remain the same as the ground-breaking RX1, the special edition RX1R adds other refinements to suit discerning photographers.

In addition, compatibility with TRILUMINOS Colour technology ensures even richer, more natural colours when viewing stills and video on the new generation of BRAVIA televisions featuring TRILUMINOS Display. Videographers can also add an optional stereo microphone, allowing Full HD movie soundtracks to be captured with even greater clarity.

Introduced in September 2012, the Cyber-shot™ DSC-RX1 is world’s first compact fixed-lens camera with a 35mm full-frame 24.3 effective megapixel sensor. It’s already won several prestigious European accolades, including ‘Best Premium Camera’ in the 2013 Technical Image Press Association (TIPA) Awards. Read the Cyber-shot™ DSC-RX1 press release (12 September 2012) here.

* Moire and/or colour artifacts may be visible in some photographic situations. Colour reproduction performance is the same as the RX1.

Sony RX1R and its fixed Carl Zeiss 35mm f/2 Sonnar

The Sony Cybershot RX1R is available for pre-order for $2798 and will be available on July 26.

Monday, June 17, 2013

Carl Zeiss Touit 12mm Distagon and Miami

nex-7 zeiss touit 12mm distagon miami

Delano Hotel South Beach

Here are some shots from the Zeiss Touit 12mm Distagon from Miami. It was a quick trip and the weather did not cooperate. The 12mm Touit is a nice match for the NEX-7 due to its lightweight design yet being so well built. The lens was glued to the NEX-7 for most of the trip. The 18mm FOV will take more practice since it's such a wide perspective.

nex-7 zeiss touit 12mm distagon miami

Car Inside Trump Sunny Isles

nex-7 zeiss touit 12mm distagon miami

La Sandwicherie South Beach

nex-7 zeiss touit 12mm distagon miami

Mac's Club Deuce

nex-7 zeiss touit 12mm distagon miami
nex-7 zeiss touit 12mm distagon miami

Airport Code: EWR

Thursday, June 6, 2013

Zeiss Touit 12mm Lens in Istanbul Not Constantinople

carl zeiss touit 12mm distagon sony nex

The plan: spend the 5 hr layover in Istanbul Ataturk Airport to visit the Asian side of Istanbul by ferry.

The plan was devised by my friend and I with no planning. Our other companions stayed behind and wished us luck since we needed it. First one needs a $20 visa to enter Turkey, this took 15 minutes. Next was the passport check line, this took 25 minutes - we have 4 hrs and 20 mins left before our plane left to our final destination. The easiest way to get into Istanbul is by the Metro. We had to take the Subway then the tram to the ferry. Luckily we had no map and were depending on strangers to get us to our destination. We arrived at the ferry one hour later with no complications except for the slow and jam packed tram - 3 hrs and 20 mins to go.

And the problems began. We were told that the ferry was free - it was not. We had to scramble to get tokens - where did the Turkish Liras go? We were rushing to catch the next ferry, and did not confirm its destination. We boarded and waited for 5 mins for the ferry to launch. We saw the Asian side to the left of us, and it stayed to the left of us. The ferry took 15 mins to arrive at its destination which was still the European side of Istanbul - oops. We had no choice but to retrace our steps back to the airport. We finally acquired a map and saw where we went wrong. We took the wrong ferry. The ferry fiasco took 40 mins - 2 hrs and 40 mins left.

We missed the first tram back - 10 mins wait. We got on the next one and slowly countdown the stops in order not to miss the transfer to the subway. It always felt faster returning but this time it did not. Everything was new and we didn't notice how close the tram was to the people and the sidewalks - did we get on the right tram? We did as confirmed by the tram map. We transfer to the subway and get back into the airport - one hour gone, 1 hr 30 min left.

We had to go through two security checks - one has not seen a film camera before. We also had to go through the passport / visa check again and ran through the airport. We checked the flight status boards and saw that our flight was blinking red - FINAL CALL. We arrived at our gate with 10 mins before take off and the airline ticket attendants questioned us. A special screener was assigned to my friend since he had no checked in luggage. We eventually boarded the plane with cheers and jeers from our companions. It was a good yet unsuccessful adventure on a nice day in Istanbul not Constantinople.

Here are a few photos I managed to snap with the new Carl Zeiss Touit 12mm f/2.8 Distagon lens on the NEX-7. I was hoping I had more time to shoot but this was low on our priority list. The camera was on Aperture Priority and Autofocus.

carl zeiss touit 12mm distagon sony nex

carl zeiss touit 12mm distagon sony nex

carl zeiss touit 12mm distagon sony nex

carl zeiss touit 12mm distagon sony nex

carl zeiss touit 12mm distagon sony nex

carl zeiss touit 12mm distagon sony nex

carl zeiss touit 12mm distagon sony nex

Saturday, June 1, 2013

How Zeiss Touit Lenses Are Made

Manufacturing of Zeiss Touit Lenses for NEX Cameras

One Hundred Pieces Hand Assembled

Carl Zeiss shows the time and care invested into each Zeiss Touit lens for your NEX Camera.

Wednesday, May 15, 2013

Zeiss Touit Press Event Coverage

nex-7 zeiss touit 12mm voigtlander

Zeiss 12mm f/2.8 Touit with the Voigtlander 12mm f/5.6

Here's what we learned from the Zeiss Touit Lens press event yesterday.

  • Zeiss sees the Compact System Camera on an upward trend while the DSLR market peaking.
  • More Touit lenses will be announced within 12-24 months.
  • The 50mm f/2.8 macro will be announced this fall.
  • The lenses are much lighter than they appear.
  • The focus ring is well damped.
  • The lenses are designed to work with the latest NEX firmware.
  • The 12mm Distagon and the 32mm Planar will be available early June.
  • The 12mm and 32mm MTF charts are posted below.

zeiss touit lens mtf chart

Zeiss Touit 12mm f/2.8 Lens MTF Chart

zeiss touit lens mtf chart

Zeiss Touit 32mm f/1.8 Lens MTF Chart

Thank you Richard, Nicole, and Tobias!

Pre-order your Touit Lenses at Unique Photo.

Friday, May 10, 2013

Zeiss Touit Lenses Explained by Dr. Pollmann

nex zeiss touit 32mm planar

Compact Lens for a Compact NEX System

Dr. Michael Pollmann Carl Zeiss Program Manager discusses the Touit Lens Line.

Here is Dr. Pollmann of Carl Zeiss discussing the Touit lens concept. The Touit autofocus lenses are designed for NEX cameras as was the Zeiss 24mm Sonnar. With the introduction of the Touit line, NEX owners have access to Zeiss' legendary lens designs, Distagon, Planar, and Sonnar. The first Touit lenses will be available around June.

Inner Workings of a Zeiss Touit Lens

Pre-order the Zeiss Touit lenses from Unique Photo.

Tuesday, April 30, 2013

Zeiss Touit Lenses for NEX Cameras

nex autofocus carl zeiss touit lens

Carl Zeiss Touit 32mm Planar

Touit, pronounced "do it," is the new name of Carl Zeiss autofocus lenses for NEX cameras. There will initially be three Touit lenses, 12mm, 32mm, and 50mm. They are expected to be available by the summer.

From the Carl Zeiss camera lens blog:
Touit is pronounced like the English “do it.” Touit stands for good visibility, agility, mobility and diversity, qualities which also aptly describe the new ZEISS lenses for mirrorless camera systems. The name Touit comes from the band-tailed parrots. This bird is very small and agile, and its plumage is deep green. The Touit parrots live in Latin America and the Caribbean in a wide range of different habitats, from damp-tropical island regions to lowland rainforests to thorn-bush savannas and even high in the Andes Mountains at altitudes of up to over 20,000 feet.

Please check our previous post for details on the three Touit lenses from Carl Zeiss.

nex autofocus carl zeiss touit lens

Carl Zeiss Touit 32mm Planar mounted on Sony NEX-7

nex autofocus carl zeiss touit lens

nex autofocus carl zeiss touit lens

Carl Zeiss Touit 12mm Distagon

More info about the genus touit from wikipedia.

Thanks Carl Zeiss!

Friday, March 8, 2013

Sony DSC-RX100 $488 For Military Personnel

sony dsc-rx100 aafes discount

If you are in the US Military you can pick up the Sony DSC-RX100 at the AAFES for $488. The AAFES price is $575 and with the "x2175vip" code the final price will be 15% less.

Wednesday, January 16, 2013

Voigtlander 21mm Ultron Aspherical on Sony NEX-7

sony nex-7 voigtlander 21mm 1.8 ultron

NEX-7 with Voigtlander 21mm f/1.8 Ultron via Novoflex Leica M to E-mount adapter.

TechTalk with Ron Sheffler tested the new Voigtlander 21mm f/1.8 Aspherical Ultron against three other Leica M 21mm lenses on the Leica M9. He also used the lenses on the Sony NEX-7 and found that the Voigtlander 21mm f/1.8 the best at farther distances and large apertures. The Leica 21 f/3.4 Super Elmar-M came in second, the Zeiss 21mm f/2.8 Biogon in third, and the Leica 21 f/1.4 Summilux at the back of the pack. At f/4 all the lenses performed equally well on the NEX-7's APS-C sensor.

Here are some samples from the NEX-7 and the Voigtlander 21mm wide open at f/1.8. You can see more samples at TechTalk.
sony nex-7 voigtlander 21mm 1.8 ultron

sony nex-7 voigtlander 21mm 1.8 ultron

sony nex-7 voigtlander 21mm 1.8 ultron

Sample Images from NEX-7 with Voigtlander 21mm f/1.8

Check out TechTalk with Ron Sheffler for an extensive review and comparison between the four 21mm Leica M mount lenses mentioned above. There are also plenty of sample images from the Leica M9 with the lenses.

sony nex-7 voigtlander 21mm 1.8 ultron

Voigtlander 21mm f/1.8 provides an equivalent field of view of 32mm on the NEX sensor.

sony nex-7 voigtlander 21mm 1.8 ultron

Images courtesy of

Thanks Ron S!