D850 vs. D5: some observations

Given that all three cameras have the same extra processor...???......it could well be down to mirror black out time!........
.....I paid some attention to the differences between the VF on the D850 with what seemed like a darker VF image, against the D5's more constant VF display.......certainly the VF in the D5 has very short lived blackouts.
That's not it. It might be it in some instances, but it's more than that.

I push the AF on my bodies with BIF under difficult lighting, low lighting, weather conditions, use TCs pushing up f stop, erratic birds. Sometimes more for the pushing of it to see what happens then to expect a great image.

In the worse of conditions the pro bodies D4, D4s, D5 will focus where the other bodies (D800/e, D810, D850, D750) will only hunt or fall flat on it's face. Doesn't matter that I can't explain why, all that matters is that's the way it is. On the other hand, a D5 is $4000 more than a D850 in Toronto, or near double. Not much you can buy at double the price that doesn't come with some benefits for the $$$ spent.

Am that's what I chaulk it up to. Designed as a sports and wildlife camera, and at twice the price. I don't need to rationalize it any more than that.
.......and the D500?
 
Given that all three cameras have the same extra processor...???......it could well be down to mirror black out time!........
.....I paid some attention to the differences between the VF on the D850 with what seemed like a darker VF image, against the D5's more constant VF display.......certainly the VF in the D5 has very short lived blackouts.
That's not it. It might be it in some instances, but it's more than that.

I push the AF on my bodies with BIF under difficult lighting, low lighting, weather conditions, use TCs pushing up f stop, erratic birds. Sometimes more for the pushing of it to see what happens then to expect a great image.

In the worse of conditions the pro bodies D4, D4s, D5 will focus where the other bodies (D800/e, D810, D850, D750) will only hunt or fall flat on it's face. Doesn't matter that I can't explain why, all that matters is that's the way it is. On the other hand, a D5 is $4000 more than a D850 in Toronto, or near double. Not much you can buy at double the price that doesn't come with some benefits for the $$$ spent.

Am that's what I chaulk it up to. Designed as a sports and wildlife camera, and at twice the price. I don't need to rationalize it any more than that.
.......and the D500?
I haven't shot the D500 enough under tough conditions to have much to say on it. But I did shoot some barneys in flight and they were zigging and zagging as they do. Only lens that was fast enough AF wise, and small and light enough to be swinging around was the 70-200VRII and both the D4s and D500 could pull it off. I think? I backed the FL off on some shots when using the D500 to make the FOV more equal.

My issue with the D500 is that IQ seems to go all to hell when the ISO goes up, but at the price point you do get a great AF.

So when I'm shooting BIF where there was fast action where I really wanted the shot, I'd go D4s>D500>D850.

But selection can be a jumbled mess, as in close, in good light I'd really want to give the D850 a go for the 46mp.

Or if I'm feeling a little lazy and want the reach, I might use the D500 and 200-500. But I've been kicking myself in the butt on that one a couple of times lately, wishing I'd had use the D4s / 500f4VR / TC1.4III instead.

D4s one here. Notice it's raining. He / she is in the process of tilting to the right, probably followed by a quick tilt to the left
D4s one here. Notice it's raining. He / she is in the process of tilting to the right, probably followed by a quick tilt to the left

--
A Canon G5 and a bit of Nikon gear.
---------------------------
He could be right, he could be wrong. I think he’s wrong but he says it in such a sincere way. You have to think he thinks he’s right. - Bob Dylan
 
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"The D850 uses the same field-proven ultra-accurate AF system as the flagship D5. With 153 focus points, 99 cross-type sensors and a dedicated AF processor, the D850 delivers all of its 45.7 MP performance with NIKKOR lenses. Shoot in low light to -4 EV. Capturing the most elusive subjects will feel like second nature with the D850."

from

https://www.nikonusa.com/en/nikon-products/product/dslr-cameras/d850.html

To me, it looks like the focusing module, the Multi-CAM 20K AF sensor module, as a part of that module there is a processing device. And this is the case for the D850 (and D500 as well?).
That's always been the case. Armchair quarterbacks should not be allowed.

My D4 blew away the AF on my D800 / d800e

My D4 / and now D4s blew away the AF on my D810.

And while the D850 has a different AF system than my D4s, if you're pushing the AF (as I'm referring to in the "blew away" comments above), I'd pick the D4s over the D850 every time.

As a reference point, shooting the same fast moving ducks where the situation was repeated over and over, I shot the D4s with 500f4VR and TC1.7II and it AF'ed better than the D850 shooting the 500f4VR bare. (And no there's nothing wrong with the D850 - just don't pull the D4s out of the bag to shoot alongside it)

D5 is suppose to be even better, but I need no better than the D4s, so have no interest in one.
Well you are an armchair Engineer and that don’t stop you from having an opinion ...
More than just an armchair engineer. Unlike others, I don't need to say I'm an engineer, I'm a doctor, I'm a physicist to talk about camera gear. Not into the self-important, self-righteous crap. Maybe the way I was raised. Unfortunately, doesn't stop me from being an azz on times, but I realize it. Most don't. :)

I'm only interested in the image. Gear is secondary but I know the AF of the above bodies by using them and pushing the AF.

And you'll find I don't give opinions about something I know nothing about. There's enough idiots without me being one.
A lot of self praise there, but you certainly make this place more lively

I have my M.Sc and work in a optical company.
 
"The D850 uses the same field-proven ultra-accurate AF system as the flagship D5. With 153 focus points, 99 cross-type sensors and a dedicated AF processor, the D850 delivers all of its 45.7 MP performance with NIKKOR lenses. Shoot in low light to -4 EV. Capturing the most elusive subjects will feel like second nature with the D850."

from

https://www.nikonusa.com/en/nikon-products/product/dslr-cameras/d850.html

To me, it looks like the focusing module, the Multi-CAM 20K AF sensor module, as a part of that module there is a processing device. And this is the case for the D850 (and D500 as well?).
That's always been the case. Armchair quarterbacks should not be allowed.

My D4 blew away the AF on my D800 / d800e

My D4 / and now D4s blew away the AF on my D810.

And while the D850 has a different AF system than my D4s, if you're pushing the AF (as I'm referring to in the "blew away" comments above), I'd pick the D4s over the D850 every time.

As a reference point, shooting the same fast moving ducks where the situation was repeated over and over, I shot the D4s with 500f4VR and TC1.7II and it AF'ed better than the D850 shooting the 500f4VR bare. (And no there's nothing wrong with the D850 - just don't pull the D4s out of the bag to shoot alongside it)

D5 is suppose to be even better, but I need no better than the D4s, so have no interest in one.
Well you are an armchair Engineer and that don’t stop you from having an opinion ...
More than just an armchair engineer. Unlike others, I don't need to say I'm an engineer, I'm a doctor, I'm a physicist to talk about camera gear. Not into the self-important, self-righteous crap. Maybe the way I was raised. Unfortunately, doesn't stop me from being an azz on times, but I realize it. Most don't. :)

I'm only interested in the image. Gear is secondary but I know the AF of the above bodies by using them and pushing the AF.

And you'll find I don't give opinions about something I know nothing about. There's enough idiots without me being one.
A lot of self praise there, but you certainly make this place more lively
That's why I get free membership.
I have my M.Sc and work in a optical company.
Could mean something big or you might have a degree but no work at it, so pushing eyeglasses in an eyeglass dispensary.

Either way, does it help you take better snaps? :) Because if not, it's irrelevant here (to me)

--
A Canon G5 and a bit of Nikon gear.
---------------------------
He could be right, he could be wrong. I think he’s wrong but he says it in such a sincere way. You have to think he thinks he’s right. - Bob Dylan
 
Last edited:
"The D850 uses the same field-proven ultra-accurate AF system as the flagship D5. With 153 focus points, 99 cross-type sensors and a dedicated AF processor, the D850 delivers all of its 45.7 MP performance with NIKKOR lenses. Shoot in low light to -4 EV. Capturing the most elusive subjects will feel like second nature with the D850."

from

https://www.nikonusa.com/en/nikon-products/product/dslr-cameras/d850.html

To me, it looks like the focusing module, the Multi-CAM 20K AF sensor module, as a part of that module there is a processing device. And this is the case for the D850 (and D500 as well?).
That's always been the case. Armchair quarterbacks should not be allowed.

My D4 blew away the AF on my D800 / d800e

My D4 / and now D4s blew away the AF on my D810.

And while the D850 has a different AF system than my D4s, if you're pushing the AF (as I'm referring to in the "blew away" comments above), I'd pick the D4s over the D850 every time.

As a reference point, shooting the same fast moving ducks where the situation was repeated over and over, I shot the D4s with 500f4VR and TC1.7II and it AF'ed better than the D850 shooting the 500f4VR bare. (And no there's nothing wrong with the D850 - just don't pull the D4s out of the bag to shoot alongside it)

D5 is suppose to be even better, but I need no better than the D4s, so have no interest in one.
Well you are an armchair Engineer and that don’t stop you from having an opinion ...
More than just an armchair engineer. Unlike others, I don't need to say I'm an engineer, I'm a doctor, I'm a physicist to talk about camera gear. Not into the self-important, self-righteous crap. Maybe the way I was raised. Unfortunately, doesn't stop me from being an azz on times, but I realize it. Most don't. :)

I'm only interested in the image. Gear is secondary but I know the AF of the above bodies by using them and pushing the AF.

And you'll find I don't give opinions about something I know nothing about. There's enough idiots without me being one.
A lot of self praise there, but you certainly make this place more lively
That's why I get free membership.
I have my M.Sc and work in a optical company.
Could mean something big or you might have a degree but no work at it, so pushing eyeglasses in an eyeglass dispensary.

Either way, does it help you take better snaps? :) Because if not, it's irrelevant here (to me)
It always helps to know what you are doing

And it’s not a disadvantage in a gear forum

And no there are no eyeglass maker in Sweden
 
"The D850 uses the same field-proven ultra-accurate AF system as the flagship D5. With 153 focus points, 99 cross-type sensors and a dedicated AF processor, the D850 delivers all of its 45.7 MP performance with NIKKOR lenses. Shoot in low light to -4 EV. Capturing the most elusive subjects will feel like second nature with the D850."

from

https://www.nikonusa.com/en/nikon-products/product/dslr-cameras/d850.html

To me, it looks like the focusing module, the Multi-CAM 20K AF sensor module, as a part of that module there is a processing device. And this is the case for the D850 (and D500 as well?).
That's always been the case. Armchair quarterbacks should not be allowed.

My D4 blew away the AF on my D800 / d800e

My D4 / and now D4s blew away the AF on my D810.

And while the D850 has a different AF system than my D4s, if you're pushing the AF (as I'm referring to in the "blew away" comments above), I'd pick the D4s over the D850 every time.

As a reference point, shooting the same fast moving ducks where the situation was repeated over and over, I shot the D4s with 500f4VR and TC1.7II and it AF'ed better than the D850 shooting the 500f4VR bare. (And no there's nothing wrong with the D850 - just don't pull the D4s out of the bag to shoot alongside it)

D5 is suppose to be even better, but I need no better than the D4s, so have no interest in one.
Well you are an armchair Engineer and that don’t stop you from having an opinion ...
More than just an armchair engineer. Unlike others, I don't need to say I'm an engineer, I'm a doctor, I'm a physicist to talk about camera gear. Not into the self-important, self-righteous crap. Maybe the way I was raised. Unfortunately, doesn't stop me from being an azz on times, but I realize it. Most don't. :)

I'm only interested in the image. Gear is secondary but I know the AF of the above bodies by using them and pushing the AF.

And you'll find I don't give opinions about something I know nothing about. There's enough idiots without me being one.
A lot of self praise there, but you certainly make this place more lively
That's why I get free membership.
I have my M.Sc and work in a optical company.
Could mean something big or you might have a degree but no work at it, so pushing eyeglasses in an eyeglass dispensary.

Either way, does it help you take better snaps? :) Because if not, it's irrelevant here (to me)
It always helps to know what you are doing

And it’s not a disadvantage in a gear forum

And no there are no eyeglass maker in Sweden
Being a Swede, I hope you're remaining neutral in this D850 / D5 conflict.
 
I'm not doubting you at all that the D5 outperforms the 850 and 500 in the AF department. I was just pointing out that all three have a dedicated AF processor. Whether or not it's the same one, I have no idea.
Can anyone (some guru nerd in photography) to clarify this? Or out in the field hardcore photographer of dynamic subjects ?

what is the practical difference between these AF modules? Can you quantify it ?

if you have one of the models please don’t justify your purchase, try to be objective

(The more expensive the camera, more guilt to heal?!)
 
Earlier this week, I had the opportunity to do an experiment comparing my D850 with my D5 for low-light indoor action photography. I have tons of experience with the D5
- Much better dynamic range.
Much better dynamic range at base ISO and the D5 catches around ISO800 and then surpasses the D850 in DR after that where it matters shooting indoor action. Even at ISO200 it's less than a stop difference.
 
Much better dynamic range at base ISO and the D5 catches around ISO800 and then surpasses the D850 in DR after that where it matters shooting indoor action. Even at ISO200 it's less than a stop difference.
Good point. The D5 is definitely superior at higher ISOs, both in lower noise and better DR.
 
Earlier this week, I had the opportunity to do an experiment comparing my D850 with my D5 for low-light indoor action photography. I have tons of experience with the D5
- Much better dynamic range.
Much better dynamic range at base ISO and the D5 catches around ISO800 and then surpasses the D850 in DR after that where it matters shooting indoor action. Even at ISO200 it's less than a stop difference.
But the D850 does iso 64, I'd expect it to get another stop difference out of that.

A lot of spec jockeys in this thread. I don't know why anyone would be shooting indoor action at 45MP, post processing must be hell. I even find 24MP more than enough.
 
Main difference I saw was in switching focus from a subject at a distance of 50 yards to one at a distance of 15 yards and vice versa that the focus acquisition was much faster with the D5 camera. I had the D850 powered by the EN-EL18 in the grip so it had as much power to drive the lens.

On the other hand the D850 in DX mode becomes a 19MP camera and so is much better in situations where there will be cropping later. D5 in DX provides 8.9MP output and so any cropping of the D5 image is likely to be more limiting in producing a print.
 
Main difference I saw was in switching focus from a subject at a distance of 50 yards to one at a distance of 15 yards and vice versa that the focus acquisition was much faster with the D5 camera. I had the D850 powered by the EN-EL18 in the grip so it had as much power to drive the lens.

On the other hand the D850 in DX mode becomes a 19MP camera and so is much better in situations where there will be cropping later. D5 in DX provides 8.9MP output and so any cropping of the D5 image is likely to be more limiting in producing a print.
Rather than spend $3500 on a D850 to use it in crop mode I think I'd prefer a D500 at half the price and run it with a D4 or D810 coming in around the same price.

I've never been convinced by the idea of running cameras in a crop mode with a smaller image in the viewfinder and using expensive cameras like cheap DX ones too often. Just an IMO.
 
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Given that all three cameras have the same extra processor...???......it could well be down to mirror black out time!........
.....I paid some attention to the differences between the VF on the D850 with what seemed like a darker VF image, against the D5's more constant VF display.......certainly the VF in the D5 has very short lived blackouts.
That's not it. It might be it in some instances, but it's more than that.

I push the AF on my bodies with BIF under difficult lighting, low lighting, weather conditions, use TCs pushing up f stop, erratic birds. Sometimes more for the pushing of it to see what happens then to expect a great image.

In the worse of conditions the pro bodies D4, D4s, D5 will focus where the other bodies (D800/e, D810, D850, D750) will only hunt or fall flat on it's face. Doesn't matter that I can't explain why, all that matters is that's the way it is. On the other hand, a D5 is $4000 more than a D850 in Toronto, or near double. Not much you can buy at double the price that doesn't come with some benefits for the $$$ spent.

Am that's what I chaulk it up to. Designed as a sports and wildlife camera, and at twice the price. I don't need to rationalize it any more than that.
.......and the D500?
I haven't shot the D500 enough under tough conditions to have much to say on it. But I did shoot some barneys in flight and they were zigging and zagging as they do. Only lens that was fast enough AF wise, and small and light enough to be swinging around was the 70-200VRII and both the D4s and D500 could pull it off. I think? I backed the FL off on some shots when using the D500 to make the FOV more equal.

My issue with the D500 is that IQ seems to go all to hell when the ISO goes up, but at the price point you do get a great AF.

So when I'm shooting BIF where there was fast action where I really wanted the shot, I'd go D4s>D500>D850.

But selection can be a jumbled mess, as in close, in good light I'd really want to give the D850 a go for the 46mp.

Or if I'm feeling a little lazy and want the reach, I might use the D500 and 200-500. But I've been kicking myself in the butt on that one a couple of times lately, wishing I'd had use the D4s / 500f4VR / TC1.4III instead.

D4s one here. Notice it's raining. He / she is in the process of tilting to the right, probably followed by a quick tilt to the left
D4s one here. Notice it's raining. He / she is in the process of tilting to the right, probably followed by a quick tilt to the left
Under questions and answers on Nikon's official site for the D500......I copy and paste:

"Q: Is the 153 focus-point AF system completely the same as the one in the D5?

A:If you don’t count in the metal fittings, the AF sensor itself is the same.

The 153 focus-point AF sensor, which covers a wide area, may seem a bit big for the body of a DX-format camera, but the developers decided that it was best to use the AF sensor the way it was, and as a result, the D500 body was designed to fit it. Thanks to this, almost the entire viewfinder image area is covered by focus points."

I couldn't find the same for the D850.........(probably just difficult to find)





--
Dave's clichés
 
Earlier this week, I had the opportunity to do an experiment comparing my D850 with my D5 for low-light indoor action photography. I have tons of experience with the D5
- Much better dynamic range.
Much better dynamic range at base ISO and the D5 catches around ISO800 and then surpasses the D850 in DR after that where it matters shooting indoor action. Even at ISO200 it's less than a stop difference.
But the D850 does iso 64, I'd expect it to get another stop difference out of that.

A lot of spec jockeys in this thread. I don't know why anyone would be shooting indoor action at 45MP, post processing must be hell. I even find 24MP more than enough.
Not a lot of indoor action shot at ISO64, so not really relevant. My comment was around the stated comparison under stated conditions with stated benefits of D850 over D5....which really isn't a benefit.
 
And many of the parts of the AF system might be the same in the 3 cameras - BUT, the fact that the D5 has an additional computer processor the other 2 cameras don't have to process AF calculations means that the D5 is CLEARLY better* for the most demanding and challenging AF subjects. (*in my experience for MY photo subjects.)
How do you know the D5 has an additional computer processor?

I have not seen anything about an extra processor in the D5. The battery comsumption does not look like that is the case either.
"The D5 is the first Nikon camera to utilize a dedicated autofocus processor. Its Multi-CAM 20K AF sensor module" Source: Imaging Resource D5 Review.
But D850 came out later so it could have dedicated AF processor too.
 
This comes from my experience.....

If you have access to D5 and D500 try this: AF-C, 10fps, low light.

D5 slows down a little and you can hear it. D500 shoots at 10fps no matter what.

Just my experience.
 
This comes from my experience.....

If you have access to D5 and D500 try this: AF-C, 10fps, low light.

D5 slows down a little and you can hear it. D500 shoots at 10fps no matter what.

Just my experience.
SE

just keeping shooting is good but not everything

The point is: acquisition speed and stability of focus acquired

How much precise % and faster is D5 ?
 
Given that all three cameras have the same extra processor...???......it could well be down to mirror black out time!........
.....I paid some attention to the differences between the VF on the D850 with what seemed like a darker VF image, against the D5's more constant VF display.......certainly the VF in the D5 has very short lived blackouts.
That's not it. It might be it in some instances, but it's more than that.

I push the AF on my bodies with BIF under difficult lighting, low lighting, weather conditions, use TCs pushing up f stop, erratic birds. Sometimes more for the pushing of it to see what happens then to expect a great image.

In the worse of conditions the pro bodies D4, D4s, D5 will focus where the other bodies (D800/e, D810, D850, D750) will only hunt or fall flat on it's face. Doesn't matter that I can't explain why, all that matters is that's the way it is. On the other hand, a D5 is $4000 more than a D850 in Toronto, or near double. Not much you can buy at double the price that doesn't come with some benefits for the $$$ spent.

Am that's what I chaulk it up to. Designed as a sports and wildlife camera, and at twice the price. I don't need to rationalize it any more than that.
.......and the D500?
I haven't shot the D500 enough under tough conditions to have much to say on it. But I did shoot some barneys in flight and they were zigging and zagging as they do. Only lens that was fast enough AF wise, and small and light enough to be swinging around was the 70-200VRII and both the D4s and D500 could pull it off. I think? I backed the FL off on some shots when using the D500 to make the FOV more equal.

My issue with the D500 is that IQ seems to go all to hell when the ISO goes up, but at the price point you do get a great AF.

So when I'm shooting BIF where there was fast action where I really wanted the shot, I'd go D4s>D500>D850.

But selection can be a jumbled mess, as in close, in good light I'd really want to give the D850 a go for the 46mp.

Or if I'm feeling a little lazy and want the reach, I might use the D500 and 200-500. But I've been kicking myself in the butt on that one a couple of times lately, wishing I'd had use the D4s / 500f4VR / TC1.4III instead.

D4s one here. Notice it's raining. He / she is in the process of tilting to the right, probably followed by a quick tilt to the left
D4s one here. Notice it's raining. He / she is in the process of tilting to the right, probably followed by a quick tilt to the left
Under questions and answers on Nikon's official site for the D500......I copy and paste:

"Q: Is the 153 focus-point AF system completely the same as the one in the D5?

A:If you don’t count in the metal fittings, the AF sensor itself is the same.

The 153 focus-point AF sensor, which covers a wide area, may seem a bit big for the body of a DX-format camera, but the developers decided that it was best to use the AF sensor the way it was, and as a result, the D500 body was designed to fit it. Thanks to this, almost the entire viewfinder image area is covered by focus points."

I couldn't find the same for the D850.........(probably just difficult to find)
It seems like some of you want to believe the D850 AF is as good as the D5 AF. I can only go by my D4s, but my D4s is better than my D850.

On the D500, a guess, not having used the D500 much, is that the D500 AF is as good as the D4s, but I like what comes out of the D4s more. AF is only one part of it.

Based on Old Greenlander's theory that we tend to lean towards what we paid most for well I paid $4500 for the D850 new, $2800 for the D4s with 90k and I swapped a D750 that I paid $2100 for and had for two years for the D500. So....................... so much for that theory when it comes to me.

But I think y'all are sweating too much over the small stuff. All three are very good, and I rarely see any BIF shots on here that I couldn't have got with a D50. Even more challenging ones. Not consistently, but I have no way of knowing if the blue sky / large bird shots I see on here are 1 out of 3 or 1 out of 50.

--
A Canon G5 and a bit of Nikon gear.
---------------------------
He could be right, he could be wrong. I think he’s wrong but he says it in such a sincere way. You have to think he thinks he’s right. - Bob Dylan
 
This comes from my experience.....

If you have access to D5 and D500 try this: AF-C, 10fps, low light.

D5 slows down a little and you can hear it. D500 shoots at 10fps no matter what.

Just my experience.
SE

just keeping shooting is good but not everything

The point is: acquisition speed and stability of focus acquired

How much precise % and faster is D5 ?
It isn't, maybe, I get 100% keepers from D500. But I shoot 20x more with D5 so it is hard to say. I am only going by what I get less frames in AF-C from D5, in low light, than from D500 in the same light. On the other hand if I switch D5 to AF-S I get full speed but if the person is moving I get OOF photos. In the good light it makes no difference.
 

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