Sony A7R II impression and images

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

wallstreetoneil wrote in post #17939977
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

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

xpfloyd wrote in post #17940386
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)

wallstreetoneil wrote in post #17940610
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

xpfloyd wrote in post #17940632
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

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.

TommyG wrote in post #17942230

IMAGE LINK: https://flic.kr/p/Fobd​Yx Day out in Formby with Ray and BB-8 by Tom Gutteridge, on Flickr

Love it! Well done.

Thanks David! I had fun with this one

TommyG wrote in post #17942230

IMAGE LINK: https://flic.kr/p/Fobd​Yx Day out in Formby with Ray and BB-8 by Tom Gutteridge, on Flickr

brilliant

Thanks very much xpfloyd!

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