Jump to content

A7R ii Blacking Out With Fotodiox Adapter and Sigma 35mm f1.4

Velmahr

By Velmahr,
in Adapters & Speedboosters

 Share

Recommended Posts

Velmahr Newbie

Velmahr

Posted
Posted

This is my first post on this forum site. I am new to photography and have owned a couple canon dslr cameras (EOS 40D and 70D). Forgive me for my formatting.


just got a used Sony A7R ii, which worked perfectly according to the previous owner who sold it on craigslist in pristine condition with all documentation purchased from B&H.  I saw it autofocus and take pictures with his own native E-mount lens, which he was selling, albeit at a $1500 price point, and I was already a little hard pressed for cash.


I did not have a lens, so I went ahead and purchased the Sigma 35mm f1.4 ART lens with the canon EF mount. I needed some kind of adapter, so I also bought the Fotodiox Pro Lens Adapter from Amazon.


I read on this site: http://briansmith.com/sony-a7rii-canon-ef-smart-adapter-tests/ that the Fotodiox adapter should perform alright with the Sigma lens.


Once I received everything (today, May 26th), I mounted it all on and took my first picture.  Autofocus was... nonexistent.  Second shot in better light proved more promising with pretty snappy autofocus.  Then I tried to take another photo and when I pushed the shutter down, the screen turned true black and then the "artificial black" for about 5 seconds.  When it returned to normal, there was an audible "clicking" or "readjusting" of the whole system.  I took the lens and adapter off, put on the lens cap, and I was firing away normally, so it leads me to believe that the lens or adapter is causing some kind of lag.  This happens in both manual and autofocus modes.  It seems to happen randomly, but it happens more than 75% the times I have tried to take photos.  It also happened a couple times when I pressed the shutter half-way.


I also thought it could be my SD Card.  I am using an old SDHC I SanDisk Ultra 30 mb/s 8gb card.  I have a 64gb Lexar 1000x 64gb U3 card coming in a couple days from Amazon.


Link to post
Share on other sites
  • 6 months later...
nicholas teixeira Newbie

nicholas teixeira

Posted
Posted

im having issues with my a7r2 and fotodiox too...

i don't have the sigma 35 art, but with original canon glass im having a lot of troubles...

the major problem to me is that when i try to select 24fps on video mode de camera freezes...

does this happened to you too? please test it...

if it happens, i think we should leave the fotodiox and go to metabones or something more reliable...

best!

 

nicholas 

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Posts

    • Mr. Lips
      Bokeh?

      By Mr. Lips · Posted

      Like Cameratose, I usually go for as much depth of field as I can, but sometimes there is no getting around out of focus areas, such as a closeup of a cactus flower.  I guess, everything else being equal, I might be concerned about a lenses bokeh, but everything else is seldom equal.  At this point in my photography I think I have bigger problems than unattractive bokeh.
    • MDEMM
      Sony A1 ii Focusing Challenge

      By MDEMM · Posted

      I elected to upgrade from Sony A1 to the A1 ii and am seeing some significant focusing challenges in the little time I've spent with it so far. Less than 10% of photos appear to be in focus when photographing small birds in subject mode birds with seemingly no improvement when subject mode is changed to birds/animals/people. Scenario: Sony A1 ii, 200-600 G lens @ 600mm, F6.3, shutter speed on male cardinal (in-focus mostly) at 1/250 ISO 125 and female cardinal (nothing in focus) at 1/1600 ISO 100; AF-C set with eye supposedly in focus in both shots. Lens has AF on, OSS on, Mode 1. I've tried switching out lenses using 100-400 with and without 1.4X converter and used handheld and used tripod. Photos are at a distance of 20-25 yards. The photos below are within a couple yards of one another. There is seemingly no improvement in AF performance despite the combinations of lens, tripod and focus zones attempted. Birds are stationary. Many of the photos will have everything in the frame seemingly out of focus and some may have the head in focus and rest of body out of focus and immediate area around bird slightly out of focus at F9-F11. I considered that I was cropping too much and had pixel peeping / expectations problem, but some photos are wildly out of focus when supposedly focusing on eye or body. Neither photo below is cropped. Ideas are welcome!

      Welcome, dear visitor! As registered member you'd see an image here…

      Simply register for free here – We are always happy to welcome new members!

    • Cameratose
      Bokeh?

      By Cameratose · Posted

      Agreed, but it's ancient thinking. Any modern forum lets you edit whenever. It's simply a setting they could click to turn off. It's one reason I won't post many photos here. After 10 minutes I lose complete control over my own property. 

  • Topics

×
×
  • Create New...