June 25, 2018, 02:18:50 PM

Author Topic: Sony announces a7 iii  (Read 5597 times)

Ryananthony

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Re: Sony announces a7 iii
« Reply #15 on: March 08, 2018, 09:48:39 PM »
Does anyone have any extensive experience using Canon lenses adapted over to Sony's newer cameras? I'm most interested in how it does shooting people in low light. I'd love to take advantage of the eye autofocus the Sonys have, but I get the sense that with Canon glass in low light, advanced AF features like that may not work so great.

Right now I have a 5D4 with a 5D3 as a backup that gets used extremely rarely. I'm really thinking about picking up an A7 III with a metabones adapter, so then my secondary camera could be something worthwhile that brings its own features to the table as opposed to the 5D3 that just collects dust as an outdated camera I just keep around in case of a failure with the 5D4.

Have you tried YouTube? There are endless videos about it.

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Re: Sony announces a7 iii
« Reply #15 on: March 08, 2018, 09:48:39 PM »

Kit Lens Jockey

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Re: Sony announces a7 iii
« Reply #16 on: March 08, 2018, 11:35:36 PM »
Yes, I've watched them, they're all pretty pedantic. I just want to know, overall, in all the varied situations that most people encounter when using a camera, does using Canon lenses on the newer Sony bodies hold up well, or is it just too finicky and imprecise for serious work?

bwud

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Re: Sony announces a7 iii
« Reply #17 on: March 14, 2018, 10:01:35 PM »
Yes, I've watched them, they're all pretty pedantic. I just want to know, overall, in all the varied situations that most people encounter when using a camera, does using Canon lenses on the newer Sony bodies hold up well, or is it just too finicky and imprecise for serious work?

There are too many combinations and variables to draw the conclusion. Which lenses, which bodies, which adapters?

In all cases it’s reverse engineered protocol.

R1-7D

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Re: Sony announces a7 iii
« Reply #18 on: March 14, 2018, 11:29:37 PM »
Yes, I've watched them, they're all pretty pedantic. I just want to know, overall, in all the varied situations that most people encounter when using a camera, does using Canon lenses on the newer Sony bodies hold up well, or is it just too finicky and imprecise for serious work?


The Camera Store just released a good video on the adapter situation. Might be worth checking out, if you have not already done so.

Talys

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Re: Sony announces a7 iii
« Reply #19 on: March 15, 2018, 01:28:20 AM »
Yes, I've watched them, they're all pretty pedantic. I just want to know, overall, in all the varied situations that most people encounter when using a camera, does using Canon lenses on the newer Sony bodies hold up well, or is it just too finicky and imprecise for serious work?

I've given it a pretty serious spin, and my verdict is... it depends on what you shoot, how important it is, and what focal length you need.

1. You do NOT get, on pretty much every adapted lens is any of the subject tracking modes.  So that means, where the camera locks onto a subject, and follows it around.  It's totally useless to me, but DPR and some other reviewers seem to think that this is the best thing ever.  Since more DR, anyways.

2. You do NOT get center point + expanding points (flexible zone expanding points, or some such as they call it).  Basically, this is the mode where it's some movable point, and if there's nothing to AF on, it searches the 8 adjacent points.  This is kind of sad for patio birding, for example with an adapted 70-200 2.8 IS II.

3. You do NOT get magnified focus Autofocus.  This is a One Shot (or AF-S as they call it) autofocus feature, where a magnifier comes up, for example at 6.2x magnificantion, and there is a + reticle.    This allows you to AF on one specific part of the subject.  Works much better with a fixed lens (for example, resting on railing, on a tripod, etc.)

What you DO get:

4. Autofocus works, but it is a little slower than native lens (enough to notice).  The difference gets more and more pronounced as the focal range gets bigger and the aperture gets smaller.

5. Autofocus hunts more than native lenses, but its not bad.

6. It's better with wideish adapted lenses, lke 16-35/4 and 24-70/2.8 and 24-70/4LII.  Definitely good with 70-200L/2.8 II.

7. Eye AF works!! and pretty well with adapted lens, too.


bwud

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Re: Sony announces a7 iii
« Reply #20 on: March 15, 2018, 12:06:27 PM »

What you DO get:

5. Autofocus hunts more than native lenses, but its not bad.

6. It's better with wideish adapted lenses, lke 16-35/4 and 24-70/2.8 and 24-70/4LII.  Definitely good with 70-200L/2.8 II.

7. Eye AF works!! and pretty well with adapted lens, too.

Which adapter are you using? With my adapter (the metabones 4), some lenses don’t work at all (EF50/1.4, Sigma 70-200/2.8), some provide EyeAF but some do not. Maybe the sigma adapter is better.

Talys

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Re: Sony announces a7 iii
« Reply #21 on: March 15, 2018, 12:08:51 PM »

What you DO get:

5. Autofocus hunts more than native lenses, but its not bad.

6. It's better with wideish adapted lenses, lke 16-35/4 and 24-70/2.8 and 24-70/4LII.  Definitely good with 70-200L/2.8 II.

7. Eye AF works!! and pretty well with adapted lens, too.

Which adapter are you using? With my adapter (the metabones 4), some lenses don’t work at all (EF50/1.4, Sigma 70-200/2.8), some provide EyeAF but some do not. Maybe the sigma adapter is better.

My friend lent me his Metabones 4 and MC-11 adapters.  The Sigma MC-11 is the clear winner, in my opinion.

It's even cheaper!

I can't test my EF50/1.4... because the usm focus ring is stuck... again... lol.  I know how to disassemble and fix it myself, but am too lazy to.

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Re: Sony announces a7 iii
« Reply #21 on: March 15, 2018, 12:08:51 PM »

bwud

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Re: Sony announces a7 iii
« Reply #22 on: March 16, 2018, 12:23:12 AM »

What you DO get:

5. Autofocus hunts more than native lenses, but its not bad.

6. It's better with wideish adapted lenses, lke 16-35/4 and 24-70/2.8 and 24-70/4LII.  Definitely good with 70-200L/2.8 II.

7. Eye AF works!! and pretty well with adapted lens, too.

Which adapter are you using? With my adapter (the metabones 4), some lenses don’t work at all (EF50/1.4, Sigma 70-200/2.8), some provide EyeAF but some do not. Maybe the sigma adapter is better.

My friend lent me his Metabones 4 and MC-11 adapters.  The Sigma MC-11 is the clear winner, in my opinion.

It's even cheaper!

I can't test my EF50/1.4... because the usm focus ring is stuck... again... lol.  I know how to disassemble and fix it myself, but am too lazy to.

I’m not surprised given the resources available to metabones. I’d consider getting the sigma but in the last couple years I’ve acquired native lenses. I still adapt my macro and 16-35/4, where AF isn’t particularly concerning.

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Re: Sony announces a7 iii
« Reply #22 on: March 16, 2018, 12:23:12 AM »