June 18, 2018, 10:11:55 AM

Author Topic: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin  (Read 15098 times)

TWI by Dustin Abbott

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Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« on: February 20, 2018, 10:31:19 AM »
Hi everyone,

I've just spent a lot six+ weeks deeply reviewing (and comparing) the Sony a7R3. 

Text Review:  http://bit.ly/a7R3review
Video Review:  http://bit.ly/a7R3Sony
Video Playlist:  http://bit.ly/SonyA7r3da
Image Gallery:  http://bit.ly/Sonya7R3ig

Bottom line:  I'm adding one alongside my 5D Mark IV for both personal use and reviews.  Moving ahead I'm shooting/reviewing with a 5D Mark IV/80D and a7R3/a6500 kit.
6D x 2 | 80D | 70D | EOS-M3 w/22mm f/2 + 18-55 STM + 55-200 STM + Rokinon 12MM F/2 + EF Adapter| Tamron 15-30 VC | EF-S 24mm f/2.8 | Tamron 24-70 f/2.8 VC | 35mm f/2 IS | 40mm f/2.8 | Tamron 45mm VC | Zeiss 50 | 50 STM | 100L | 135L | Tamron 70-200 VC | 100-400L II | Legacy Glass

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Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« on: February 20, 2018, 10:31:19 AM »

Sarpedon

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #1 on: February 20, 2018, 12:02:59 PM »
Excellent review that jives with my own experience (though I switched, rather than supplemented, my kit). It was the removal of the interchangeable focus screen on the 6D Mark II (not its pedestrian dynamic range) that prompted me to look elsewhere and I now find that all of my EF mount lenses, which are either manual focus (like my favorite, the Zeiss 28 f/2) or wide-aperture primes (like the 85L II) actually work better on the Sony. And I'm continually surprised at how fun this camera is to use, which I couldn't say of my time, albeit limited, with the A7R II.

I made this comment elsewhere but I think the best way to look at the size question with the full frame Sonys is that they are 'modular': significantly smaller and a somewhat lighter if you're using something like the FE 35 f/2.8, but the advantage disappears if you're using conventional big glass like an 85 1.4 or 70-200 2.8. Indeed, you pay an ergonomic penalty if you don't use a grip. (And personally, I like the RRS plate instead of the grip unless I'm using an extremely large lens or I'm on a shoot.)

« Last Edit: February 20, 2018, 12:06:07 PM by Sarpedon »

bwud

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #2 on: February 20, 2018, 12:48:32 PM »
And I'm continually surprised at how fun this camera is to use, which I couldn't say of my time, albeit limited, with the A7R II.

Agreed. I describe the A7Rii based on ~2.5 years of use as beta hardware. The third iteration is ready for prime time, it’s a night and day difference.

(And personally, I like the RRS plate instead of the grip unless I'm using an extremely large lens or I'm on a shoot.)

I used an L-bracket with my rII to get another finger on, but picked up the vertical grip for the riii and haven’t taken it off, even with using something light and compact like my 25mm. It’s substantially more comfortable.


My A7Rii foray was experimental, neither intended as a supplement or a replacement to my Canon kit. With a7riii it is feeling more like a replacement, especially now that I finally have a longer lens option (100-400).

BeenThere

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #3 on: February 20, 2018, 02:50:39 PM »
Dustin,
Which EF lens adapter did you like best. I didn’t see the Metabones mentioned.

YellowJersey

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #4 on: February 20, 2018, 10:48:05 PM »
Hi Dustin,

 Thanks for the review. Have you encountered any issues with the so-called "star eater" phenomenon due spacial filtering noise reduction for exposures longer than 3.2 seconds? It removes stars mistaking them for noise  Much was made about this issue on previous A7 models and it seems like the spacial filtering is still there but the "star eater" effect has drastically improved on the A7rIII. I've noticed that none of the reviewers I follow have mentioned it and was curious what you thought about the A7rIII for shooting the night sky. As one of the few reviewers that looks at coma for lenses, I thought you might be the right man to ask.

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #5 on: February 21, 2018, 09:44:39 AM »
Hi Dustin,

 Thanks for the review. Have you encountered any issues with the so-called "star eater" phenomenon due spacial filtering noise reduction for exposures longer than 3.2 seconds? It removes stars mistaking them for noise  Much was made about this issue on previous A7 models and it seems like the spacial filtering is still there but the "star eater" effect has drastically improved on the A7rIII. I've noticed that none of the reviewers I follow have mentioned it and was curious what you thought about the A7rIII for shooting the night sky. As one of the few reviewers that looks at coma for lenses, I thought you might be the right man to ask.

 I looked hard for it, but it seems like that might have been a little overstated.  Here's a 25 second comparison with the Tamron 15-30 VC (too long for real astro, as there is some movement, but I wanted to really try and make it happen).
6D x 2 | 80D | 70D | EOS-M3 w/22mm f/2 + 18-55 STM + 55-200 STM + Rokinon 12MM F/2 + EF Adapter| Tamron 15-30 VC | EF-S 24mm f/2.8 | Tamron 24-70 f/2.8 VC | 35mm f/2 IS | 40mm f/2.8 | Tamron 45mm VC | Zeiss 50 | 50 STM | 100L | 135L | Tamron 70-200 VC | 100-400L II | Legacy Glass

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #6 on: February 21, 2018, 09:45:43 AM »
Excellent review that jives with my own experience (though I switched, rather than supplemented, my kit). It was the removal of the interchangeable focus screen on the 6D Mark II (not its pedestrian dynamic range) that prompted me to look elsewhere and I now find that all of my EF mount lenses, which are either manual focus (like my favorite, the Zeiss 28 f/2) or wide-aperture primes (like the 85L II) actually work better on the Sony. And I'm continually surprised at how fun this camera is to use, which I couldn't say of my time, albeit limited, with the A7R II.

I made this comment elsewhere but I think the best way to look at the size question with the full frame Sonys is that they are 'modular': significantly smaller and a somewhat lighter if you're using something like the FE 35 f/2.8, but the advantage disappears if you're using conventional big glass like an 85 1.4 or 70-200 2.8. Indeed, you pay an ergonomic penalty if you don't use a grip. (And personally, I like the RRS plate instead of the grip unless I'm using an extremely large lens or I'm on a shoot.)

It sounds like you felt the same way about the a7R2 as I did.  It just didn't do a lot for me.  The a7R3 is so much more fun to use.
6D x 2 | 80D | 70D | EOS-M3 w/22mm f/2 + 18-55 STM + 55-200 STM + Rokinon 12MM F/2 + EF Adapter| Tamron 15-30 VC | EF-S 24mm f/2.8 | Tamron 24-70 f/2.8 VC | 35mm f/2 IS | 40mm f/2.8 | Tamron 45mm VC | Zeiss 50 | 50 STM | 100L | 135L | Tamron 70-200 VC | 100-400L II | Legacy Glass

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #6 on: February 21, 2018, 09:45:43 AM »

TWI by Dustin Abbott

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #7 on: February 21, 2018, 09:47:01 AM »
Dustin,
Which EF lens adapter did you like best. I didn’t see the Metabones mentioned.

I haven't used the Metabones 5th yet, but I do have a comparo planned with the Sigma MC-11.  I used the IV with the a7R2, but it's focus system was downright primitive by comparison, so I kind of threw that experience out of consideration.
6D x 2 | 80D | 70D | EOS-M3 w/22mm f/2 + 18-55 STM + 55-200 STM + Rokinon 12MM F/2 + EF Adapter| Tamron 15-30 VC | EF-S 24mm f/2.8 | Tamron 24-70 f/2.8 VC | 35mm f/2 IS | 40mm f/2.8 | Tamron 45mm VC | Zeiss 50 | 50 STM | 100L | 135L | Tamron 70-200 VC | 100-400L II | Legacy Glass

YellowJersey

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #8 on: February 21, 2018, 03:13:20 PM »
Hi Dustin,

 Thanks for the review. Have you encountered any issues with the so-called "star eater" phenomenon due spacial filtering noise reduction for exposures longer than 3.2 seconds? It removes stars mistaking them for noise  Much was made about this issue on previous A7 models and it seems like the spacial filtering is still there but the "star eater" effect has drastically improved on the A7rIII. I've noticed that none of the reviewers I follow have mentioned it and was curious what you thought about the A7rIII for shooting the night sky. As one of the few reviewers that looks at coma for lenses, I thought you might be the right man to ask.

 I looked hard for it, but it seems like that might have been a little overstated.  Here's a 25 second comparison with the Tamron 15-30 VC (too long for real astro, as there is some movement, but I wanted to really try and make it happen).

 Thanks! I don't see any difference between the two, either, other than the exposures seem a bit different, despite the fact that the settings were the same. This bodes well, as I recently switched from the 5DmkIII to the A7rIII, and am itching to get down to Writing On Stone Provincial Park in May to shoot the stars. Here's hoping my six year old laptop can handle stacking 10 42mp images without bursting into flames or, at the very least, without microwaving my keyboard hand. Thanks, mate!

Michael Clark

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #9 on: February 28, 2018, 02:40:27 AM »
Hi Dustin,

 Thanks for the review. Have you encountered any issues with the so-called "star eater" phenomenon due spacial filtering noise reduction for exposures longer than 3.2 seconds? It removes stars mistaking them for noise  Much was made about this issue on previous A7 models and it seems like the spacial filtering is still there but the "star eater" effect has drastically improved on the A7rIII. I've noticed that none of the reviewers I follow have mentioned it and was curious what you thought about the A7rIII for shooting the night sky. As one of the few reviewers that looks at coma for lenses, I thought you might be the right man to ask.

 I looked hard for it, but it seems like that might have been a little overstated.  Here's a 25 second comparison with the Tamron 15-30 VC (too long for real astro, as there is some movement, but I wanted to really try and make it happen).

Could the movement of the star field due to the long exposure spread the light of dimmer stars over adjacent pixel wells which may prevent it being misinterpreted as noise like it might if it is only captured by a single pixel well?
It is one of the commonest of mistakes to consider that the limit of our power of perception is also the limit of all there is to perceive. - C. W. Leadbeater

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Ian_of_glos

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #10 on: March 02, 2018, 03:27:14 AM »
Thank you for another set of excellent reviews. As always, your reviews are well presented and carefully constructed.
As a Canon 5D mk 4 owner I would be interested to hear why you have kept your Canon and why you still use it in addition to your Sony A7Riii. Do you use the Sony for some applications and the Canon for others, and if so which are the most significant factors in determining which system you are going to choose for any particular shoot?
I accept that the Sony A7Riii is an excellent camera, but overall I am very happy with my 5D mk4. So what I am really trying to decide is whether the Sony is so much better than the Canon that it worth going through all the pain and expense of changing my camera system.

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #11 on: March 02, 2018, 04:24:50 AM »
Check out Tyler Stalman's videos A7RII versus 5D IV
 and A9 review, most the problems fixed in the A9 applies to the A7RIII as well.
« Last Edit: March 02, 2018, 04:57:38 AM by padam »

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #12 on: March 02, 2018, 06:36:29 AM »
Check out Tyler Stalman's videos A7RII versus 5D IV
 and A9 review, most the problems fixed in the A9 applies to the A7RIII as well.

Thanks for the links to those interesting reviews. There is a big killer for me at the end of the A9 - dust on the sensor. The mirrorless sensors are not protected by the mirror so Tyler is scared of changing lenses during a shoot because of the amount of dust picked up which has spoilt many of his shoots, which he doesn't find with his 5DIV. And I have never had to have a sensor cleaned on mine or any of my other Canon bodies despite my frequent changing of TCs in the wild. Also, what surprised was that it was more difficult to lift shadows and easier to blow highlights with the A9 than with the 5DIV - the DR is worse in practice despite all the hype that Canon is bad.
5D IV, 5DS R, 400mm DO II, 1.4xTC III, 2xTC III, EF 1.8 STM,  EF 24-105, 100-400 II, EF-S 15-85, Sigma 150-600mm C, EOS-M5 15-45, f/2 22, 11-22, Samyang 8mm f/2.8 fisheye: sold 7D II, EOS-M, Powershot G3 X,  Sigma 10-20, EF 300/2.8 II, 70-200/4 IS.

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #12 on: March 02, 2018, 06:36:29 AM »

ecqns

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #13 on: March 02, 2018, 09:44:47 AM »

Thanks for the links to those interesting reviews. There is a big killer for me at the end of the A9 - dust on the sensor. The mirrorless sensors are not protected by the mirror so Tyler is scared of changing lenses during a shoot because of the amount of dust picked up which has spoilt many of his shoots, which he doesn't find with his 5DIV.

I think being that worried about sensor dust is a little unnecessary, all you have to do is keep a little rocket blower in your bag if you need it. Since the sensor is so close to the mount you can get a good look at it if you need to. As opposed to a DSLR sensor deep in the mirror box which is harder to reach and check for dust. And anyone saying dust can spoil a shoot is being a little dramatic.

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #14 on: March 02, 2018, 09:52:31 AM »
Thank you for another set of excellent reviews. As always, your reviews are well presented and carefully constructed.
As a Canon 5D mk 4 owner I would be interested to hear why you have kept your Canon and why you still use it in addition to your Sony A7Riii. Do you use the Sony for some applications and the Canon for others, and if so which are the most significant factors in determining which system you are going to choose for any particular shoot?
I accept that the Sony A7Riii is an excellent camera, but overall I am very happy with my 5D mk4. So what I am really trying to decide is whether the Sony is so much better than the Canon that it worth going through all the pain and expense of changing my camera system.

How is the 5DIV holding you back?

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Re: Sony a7R3 Review and 5D Mark IV Comparisons | Dustin
« Reply #14 on: March 02, 2018, 09:52:31 AM »