Showing posts with label Lens Adapter. Show all posts
Showing posts with label Lens Adapter. Show all posts

Friday, June 6, 2014

Sony A7r with Contax G 28mm Biogon Test Shots

sony a7r contax g 28mm

Manhattan from Brooklyn


We are still learning which lenses play well with the Sony A7r and we found one that's not so friendly. The Contax G 28mm f/2.8 Biogon, shown in our previous post, is a non-retrofocus rangefinder lens which means that the rear of the lens is closer to the film plane or sensor. This causes the light at the edges to hit the Sony's A7r full frame sensor at oblique angles which results in color casts. This happens with the Leica M9 and M240 but is corrected with in-camera with software. The color cast can also be corrected with CornerFix or Light Room's Flat Field Plug-in, discussed by Tobinators here. We did not correct the images here for color cast.

Apart from the color cast, the Contax G 28mm Biogon performed well. We love the sharpness, contrast, and color the lens and the Sony A7r sensor delivers. Most of the shots are at f/5.6 or f/8 as we tried for the sweet spot of the lens. The A7r was set to Aperture Priority as there was plenty of light to keep a fast shutter speed.

sony a7r contax g 28mm

Anchored


sony a7r contax g 28mm

Manhattan Blue Bridge


sony a7r contax g 28mm

Green Clock


sony a7r contax g 28mm

Men At Work




Tuesday, May 13, 2014

Trainspotting with the 40mm M-Rokkor and Sony A7r

sony a7r 40mm m-rokkor leica

Here are some test shots with the Minolta 40mm f/2 M-Rokkor for the Minolta CLE. This is the multicoated version of the Leica 40mm Summicron-C. We used the very compact 40mm M-Rokkor walking around a local train museum with the Sony A7r via a Leica M lens adapter. The shots up to the handcart are all done at maximum aperture of f/2. Manual focus was very easy with using the viewfinder magnification of the A7r even in the mid-day sun. The mid-day sun also guaranteed high shutter speeds at ISO 100 and f/2. All the shots are handheld.

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica


sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

The shots below are at f/5.6 up to f/11. We need to test this lens more but the sweet spot is definitely at f/5.6.

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

The CSX 152 (GE AC4400CW diesel-electric locomotive) and the CSX 7305 (GE C40-8 [Dash 8]) was shot during the afternoon sun.

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

sony a7r 40mm m-rokkor leica

Sony A7r with a Minolta 40mm f/2 M-Rokkor via Leica M Adapter


The lens has been great on the Minolta CLE and NEX-7 and it performs well on the full-frame A7r. The lightweight and compact 40mm M-Rokkor with a fairly fast f/2 aperture should always be considered for the A7 if you want to try Leica M lenses.




Friday, May 9, 2014

Konica Hexanon 57mm 1.2 on NEX-7

sony nex-7 konica 57mm 1.2

We've seen what the Sony A7r can do with the Konica 57mm f/1.2, now it's the NEX-7's turn. We actually took these shots almost two years ago. The 57mm on the NEX-7's APS-C sensor produces an equivalent field of view of 86mm. The lens having such a large aperture at f/1.2 is perfect for isolating your subjects.

sony nex-7 konica 57mm 1.2

The shots are most likely at f/2.0 instead of wide open. We had to stop down since it was producing better results that day. We love greens that are produced by the Sony sensor and the shots below show it well.

sony nex-7 konica 57mm 1.2

sony nex-7 konica 57mm 1.2

sony nex-7 konica 57mm 1.2

sony nex-7 konica 57mm 1.2

sony nex-7 konica 57mm 1.2

sony nex-7 konica 57mm 1.2 />

sony nex-7 konica 57mm 1.2

Can you tell a big difference between the 2 year old NEX-7 shots vs the recent A7r shots? Our biggest lesson is to process your files as soon as you can.

Thursday, April 24, 2014

Autofocus Speed with LA-EA4 and Sony A7

Here's a quick video showing the autofocus speed of the Sony A7 and the LA-EA4 lens adapter. The LA-EA4 allows the Sony Alpha / Minolta A mount lenses to be used on the Sony A7 with phase detect autofocus.

Sony A7, Sigma 50mm via LA-EA4 Adapter


Here is Mr. Ticknor giving his impressions on using the Sony A7 with a Tamron 70-200 f/2.8 lens via the LA-EA4 lens adapter.

Sony A7 with Tamron 70-200 f/2.8 Impressions by Ticknor Photography


Friday, April 18, 2014

Sony A7r with Konica Hexanon 57mm f1.2

sony a7r konica hexanon 57mm 1.2

Sony A7r with Konica Hexanon 57mm f/1.2 shot by NEX-7 with a Leica 60mm Macro-Elmarit-R


Here are some of our test shots from the Sony A7r and the Konica Hexanon 57mm f/1.2 lens. The lens was mounted on the A7r using a Konica AR lens adapter. We wanted to test out the lens at f/1.2 the whole time and it was fitted with a 4X ND filter to battle the sun. The 1/8000 shutter speed and 50 ISO of the Sony A7r helped at times as well.

The Konica 57mm played very well with the A7r per our standards. All the shots were handheld as we rarely use a tripod. The focusing, at such a shallow depth of field from the large f/1.2 aperture of the lens, was manageable on the A7r. The weight of the lens would make us think twice of walking around with it but the results are hard to argue with. The details shown at f/1.2 is remarkable even at the outer edges of the shots.

sony a7r konica hexanon 57mm 1.2

sony a7r konica hexanon 57mm 1.2

100% crop of the shot above shows great detail.


sony a7r konica hexanon 57mm 1.2

Not a technically perfect shot.


sony a7r konica hexanon 57mm 1.2

Red Pail Pops.


sony a7r konica hexanon 57mm 1.2

100% crop of the shot above at the top edge has plenty of detail.


sony a7r konica hexanon 57mm 1.2

We need to shoot this one again.


sony a7r konica hexanon 57mm 1.2

Blue lamp.


sony a7r konica hexanon 57mm 1.2

Gold detail.


sony a7r konica hexanon 57mm 1.2

Zombie Barricade.


sony a7r konica hexanon 57mm 1.2

100% crop at the extreme left edge.



It was our first time playing with RAW files from the Sony A7r. We used Raw Photo Process to process the 36 MB RAW files to 218 MB tiff files - our laptop was straining a bit. The files were then finished off in Aperture. We need to tweak our workflow since we are still using our NEX-7 processing.

P.S. The shot of the A7r and the Konica 57mm was taken by the NEX-7 using wireless flash with the F20AM as the controller and the F43AM as the slave. Experimenting with wireless flash was fun.



Friday, April 11, 2014

Sony A7S at ISO 409600 Nightvision.

Sony A7S ISO 1600 to 409,600


Let's go eight stops by the campfire.

Wednesday, November 27, 2013

Sony A7 and A7r Hands On with DigitalRev

sony a7r weather sealing water resistant

Sony A7r Weather Sealing Test with 28-70mm FE Kit Lens


Kai Wong of DigitalRev Plays with the Sony A7 Cameras


The new Sony A7 and A7r cameras are featured on Digital Rev with Kai Wong. The A7's 28-70mm FE Kit lens was used on the A7r and produced "stellar" shots. The A7 and A7r's focus systems were compared. The water resitance was also tested using the A7r and the 28-70mm kit lens. A Leica 50mm f/0.95 Noctilux-M ASPH was used to show how adaptable the E-mount is. The focus peaking display was nicely featured. In conclusion, Kai was impressed with both cameras, "Sony has created a product of desire."

Sony A7r Focus Peaking with Leica Noctilux


sony a7r weather sealing water resistant

Sony A7r Rear LCD Water Resistance



sony a7 kit 28-70mm lens

Sony A7 Kit


Sony A7r vs 50mm Lenses by geesbert

sony a7r 50mm lens test

The 50mm Lens Candidates


geesbert puts the new Sony A7r up against a multitude of 50mm lenses. The list of thirteen (13) 50mm lenses used on the Sony A7r is as follows:
  • Canon EF 50mm f/1.2
  • Canon 45mm f/2.8 Tilt/Shift
  • Leica 50mm f/2.8 Elmar M
  • Leica 50mm f/3.5 Elmar Screwmount
  • Leica 50mm f/2 Summicron M
  • Leica 50mm f/1.4 Summilux M
  • Olympus OM 28-48mm f/4
  • Olympus OM 50mm f/1.4
  • Olympus OM 50mm f/2 Macro
  • Pentax SMC-A 50mm f/1.4
  • Minolta Rokkor 58mm f/1.2
  • Minolta 40mm f/2 Rokkor-M
  • Sony 50mm f/1.8 E-mount

geesbert has a great setup which shows the lens being tested. He took shots from wide open up to f/5.6 aperture.

Sony Alpha 7r vs 50mm Lenses


Thanks geesbert!



Friday, October 25, 2013

Sony A7 and A7r Hands On at PhotoPlus Expo

sony a7r lens adapter e-mount

Sony A7r with a Voigtlander 12mm Lens and Viewfinder


It was a very crowded Sony booth at PhotoPlus. The great thing was the Sony representatives were very accommodating to anyone who wanted to play with the new Sony A7 and A7r. We had our bag of lenses and was able to mount them all on the A7 and A7r - check out the 12mm viewfinder on the A7r above. The lenses include the following:

  • Voigtlander 12mm f/5.6 Leica Thread Mount on a helicoid adapter.
  • Voigtlander 35mm f/1.7 Ultron LTM.
  • Minolta 24mm f/2.8 Rokkor MD.
  • Contax G 28mm f/2.8 Biogon.
  • Contax Zeiss 85mm f/1.4 Planar with the Metabones Speedbooster and the standard C/Y adapter.
  • Zeiss 12mm f/2.8 Touit Distagon.
The cameras were pre-production and the use of memory cards to record the images was prohibited. We wanted to see if I could see immediate problems on the rear tilting lcd but none were glaring.  The only noticeable issue was color shift with the Contax G 28mm Biogon.  We're hoping that this can be remedied with the production models.

sony a7r lens adapter e-mount

Sony A7r and a Contax G Lens


Below is the Contax 85mm Planar on a Metabones Speedbooster. As you can see it cannot cover the whole sensor but with APS-C mode on the A7 cameras the Speedbooster is still useable.

sony a7r lens adapter e-mount

sony a7r lens adapter e-mount

Sony A7r and a Contax 85mm Planar Lens via Speedbooster

The Voigtlander 35mm Ultron LTM was a nice surprise.  This lens gives the NEX-7 some problems with color shift but on the A7 this was not the case.  The few snaps that we took looked great on the rear lcd.


sony a7r lens adapter e-mount

Sony A7r and a Voigtlander 35mm Ultron

The Minolta 24mm f/2.8 MD provide a nice wide angle image on the Sony A7.  It felt nice and balance on the slightly larger frame of the Sony A7.

sony a7r lens adapter e-mount

Sony A7r and a Contax 85mm Planar Lens via Speedbooster

We were very excited to mount the Zeiss 12mm f/2.8 Touit on the new Sony A7.  We had the A7's APS-C lens detection off to see how much the Touit can cover the full frame sensor.  The lens has a plastic shroud to protect the rear element and this showed up in the shot below.  The Touit works perfectly fine in APS-C mode.

sony a7r lens adapter e-mount

Sony A7r and a Zeiss 12mm Distagon Touit


The images above were from a smartphone.