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FORUMS Sony Cameras, Lenses & Accessories Sony Cameras 
Thread started 13 Jul 2015 (Monday) 12:45
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Sony A7R II impression and images

 
wallstreetoneil
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Mar 18, 2016 17:28 |  #856

Thought I would give a little Metabones IV T update

I'm going out each day for my lunch walk exercise and making myself grab a different lens just to keep things fresh. For the most part I'm taking the A7Rii unless the weather is dicey then I take one of my Canons.

Anyways, my prior experience had led me to only have issues with the Sigma 24-105 F4 with the Metabones - it loses the F stop info and defaults into M mode an really doesn't work, you need to disconnect then reconnect the lens and all is good until a few minutes later.

Last 2 days I have gone out with the 70-200 F2.8 II - and now I am getting issues with this lens - except I don't have to remove and re-attach I just have to rotate the lens counter clockwise / left to 'reconnect' it - i.e. there is slack developing.

What I am pretty sure the issue is, is the pin that comes out from the adapter, which mimics the pin on the camera mount of a Canon body, is either the tiniest fraction too small or there is play in the pin which allows rotation of the lens (i.e. slack) and the rotation of a heavy lens (i.e. the Sigma 24-105 and Canon 70-200) because of the slack causes the connections of the lens to lose contact with the Adapter.

With the Canon 70-200 it started happening all the time today but I didn't have to remove the lens - I just had to rotate it back and the F Stop re-acquired and all was well - for some reason the Sigma won't turn back on and has to be removed and reattached.

i never bought the camera thinking i could do professional work with adapters and this sort of proves it - that said, for non pro work it is just an inconvenience


Hockey and wedding photographer. Favourite camera / lens combos: a 1DX II with a Tamron 45 1.8 VC, an A7Rii with a Canon 24-70F2.8L II, and a 5DSR with a Tamron 85 1.8 VC. Every lens I own I strongly recommend [Canon (35Lii, 100L Macro, 24-70F2.8ii, 70-200F2.8ii, 100-400Lii), Tamron (45 1.8, 85 1.8), Sigma 24-105]. If there are better lenses out there let me know because I haven't found them.

  
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TommyG
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Mar 18, 2016 17:36 |  #857

IMAGE: https://farm2.staticflickr.com/1486/25863291216_8765dcf169_c.jpg
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IMAGE: https://farm2.staticflickr.com/1691/25795973991_664a90be80_c.jpg
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xpfloyd
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Mar 19, 2016 01:56 |  #858

wallstreetoneil wrote in post #17939977 (external link)
Thought I would give a little Metabones IV T update

I'm going out each day for my lunch walk exercise and making myself grab a different lens just to keep things fresh. For the most part I'm taking the A7Rii unless the weather is dicey then I take one of my Canons.

Anyways, my prior experience had led me to only have issues with the Sigma 24-105 F4 with the Metabones - it loses the F stop info and defaults into M mode an really doesn't work, you need to disconnect then reconnect the lens and all is good until a few minutes later.

Last 2 days I have gone out with the 70-200 F2.8 II - and now I am getting issues with this lens - except I don't have to remove and re-attach I just have to rotate the lens counter clockwise / left to 'reconnect' it - i.e. there is slack developing.

What I am pretty sure the issue is, is the pin that comes out from the adapter, which mimics the pin on the camera mount of a Canon body, is either the tiniest fraction too small or there is play in the pin which allows rotation of the lens (i.e. slack) and the rotation of a heavy lens (i.e. the Sigma 24-105 and Canon 70-200) because of the slack causes the connections of the lens to lose contact with the Adapter.

With the Canon 70-200 it started happening all the time today but I didn't have to remove the lens - I just had to rotate it back and the F Stop re-acquired and all was well - for some reason the Sigma won't turn back on and has to be removed and reattached.

i never bought the camera thinking i could do professional work with adapters and this sort of proves it - that said, for non pro work it is just an inconvenience

faulty adaptor maybe? Mine is solid


Eddie | flickr (external link)| gear
α7R III | Mavic 2 Pro | Osmo Pocket | GoPro Hero 7 Black
Loxia 21 | FE35
16-35 GM | Tamron 28-75

  
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digital_AM
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Mar 19, 2016 08:04 |  #859

Found a cooperative lizard for a macro shot using my Tokina 90 manual lens


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wallstreetoneil
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Mar 19, 2016 09:53 |  #860

xpfloyd wrote in post #17940386 (external link)
faulty adaptor maybe? Mine is solid

I'm going to send it it when I have time - but it has worked flawlessly until now (heavy 70-200 F2.8 walking around for hours and hours for a few days)


Hockey and wedding photographer. Favourite camera / lens combos: a 1DX II with a Tamron 45 1.8 VC, an A7Rii with a Canon 24-70F2.8L II, and a 5DSR with a Tamron 85 1.8 VC. Every lens I own I strongly recommend [Canon (35Lii, 100L Macro, 24-70F2.8ii, 70-200F2.8ii, 100-400Lii), Tamron (45 1.8, 85 1.8), Sigma 24-105]. If there are better lenses out there let me know because I haven't found them.

  
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xpfloyd
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Mar 19, 2016 10:17 |  #861

wallstreetoneil wrote in post #17940610 (external link)
I'm going to send it it when I have time - but it has worked flawlessly until now (heavy 70-200 F2.8 walking around for hours and hours for a few days)

I wonder if the weight of that lens has loosened things up a bir


Eddie | flickr (external link)| gear
α7R III | Mavic 2 Pro | Osmo Pocket | GoPro Hero 7 Black
Loxia 21 | FE35
16-35 GM | Tamron 28-75

  
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wallstreetoneil
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Mar 19, 2016 10:36 |  #862

xpfloyd wrote in post #17940632 (external link)
I wonder if the weight of that lens has loosened things up a bir

It has for sure.

I'm pretty sure it is the pin that locks the lens in place - there is just enough movement now that the lens rotates the very slightest amount.

The lens that this first surfaced with was the Sigma 24-105 - it is a heavy lens - and it is particularly sensitive to losing contact - but unlike the Canon lenses that can just be rotated back while still connected, the Sigma will not re-acquire the lost F-Stop information and needs to be quickly removed and then reattached


Hockey and wedding photographer. Favourite camera / lens combos: a 1DX II with a Tamron 45 1.8 VC, an A7Rii with a Canon 24-70F2.8L II, and a 5DSR with a Tamron 85 1.8 VC. Every lens I own I strongly recommend [Canon (35Lii, 100L Macro, 24-70F2.8ii, 70-200F2.8ii, 100-400Lii), Tamron (45 1.8, 85 1.8), Sigma 24-105]. If there are better lenses out there let me know because I haven't found them.

  
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rcarlton
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Mar 20, 2016 08:03 |  #863

Since recent posts have been about 70-200 f/2.8 lens, here are a couple of mine. Shot at ISO 4,000 but useful. Last one is a tight crop on the eyes. Not bad for a handheld shot in a high school cafeteria. Had the lens on my camera with the Metabones IV and the Canon 2x adapter all day without loosing contact or loosening up.


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Sony α7rii, α6500, Metabones IV, Zeiss Batis 18mm f/2.8, FE 24-70mm f/2.8 GM, FE 50mm f/1.8, EF 70-200L II IS USM f2.8, EF 100mm 1:2.8L IS USM Macro

  
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TommyG
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Mar 20, 2016 17:34 |  #864

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David ­ Arbogast
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Mar 20, 2016 20:43 |  #865

Love it! Well done. :)


David | Flickr (external link)
Sony α7R II | CV 12mm, FE 12-24mm, Loxia 21mm, Loxia 35mm, Sigma 35mm F/1.2, Loxia 85mm, Batis 85mm, Batis 135mm

  
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TommyG
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Mar 21, 2016 05:44 as a reply to  @ David Arbogast's post |  #866

Thanks David! I had fun with this one :)


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xpfloyd
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Mar 21, 2016 06:57 |  #867

brilliant


Eddie | flickr (external link)| gear
α7R III | Mavic 2 Pro | Osmo Pocket | GoPro Hero 7 Black
Loxia 21 | FE35
16-35 GM | Tamron 28-75

  
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TommyG
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Mar 21, 2016 12:14 as a reply to  @ xpfloyd's post |  #868

Thanks very much xpfloyd!


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jonneymendoza
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Mar 22, 2016 09:33 |  #869

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Canon 5dmkIII | Canon 85L 1.2 | Sigma 35mm ART 1.4|Canon 16-35mm L 2.8 |Canon 24-70mm L f2.8 | Canon 70-200mm F2.8L MK2 | Canon 430EX MK2 Flickr (external link)

  
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adned
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Mar 23, 2016 11:27 |  #870

I need an adapter to change ok aperture, autofocus does not interest me . Any recommendation for something not too expensive?



24-70 II ----- 70-200 II

  
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Sony A7R II impression and images
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