Rishi Sanyal

Rishi Sanyal

DPReview Administrator
Lives in United States Seattle, WA, United States
Works as a Deputy / Technical Editor
Has a website at www.rishi.photography
Joined on Feb 25, 2014
About me:

Although I'm a scientist by training, having recently completed my Ph.D in biophysics, photography has always been a huge passion of mine. It's been an incredible opportunity to meld these two interests together here at DPReview!

Comments

Total: 4248, showing: 1 – 20
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In reply to:

Mikael Risedal: so many myths are presented here , skin tones, etc.
learn to handle a raw file from a camera
instead of holding on to myths regarding skin tones, and some things can be measured=, DR, color quality, color accuracy etc. nothing that Canon does best

"Expose properly and you won't need to push shadows 5 stops."

Here we go again... and what do you do if protecting certain highlights requires certain tones to be pushed 5 stops below what might have been an 'ideal' exposure'?

Bracket? ND filters? Multiple exposures? I.e. 'workarounds' that a camera with higher dynamic range *doesn't* need?

SMH.

Link | Posted on Sep 29, 2016 at 01:04 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

stromaroma: Great video. I presume VR was turned off? That screws up the framing.

The OP is probably referring to movement during the slight delay between shutter press and actual exposure. Also, if VR reacts to the mirror or shutter actuation, that can also change the framing.

Link | Posted on Sep 14, 2016 at 18:04 UTC
In reply to:

arbux: Stop down to focus? Where is a sense in this? How does it work in dim light stopped down?

Sony, this seems stupid.

... At the cost of sometimes painfully slow focus.

@Htbaa: That doesn't work anymore on the latest Sony bodies.

Link | Posted on Sep 14, 2016 at 17:35 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

O_O: Will there be a big difference using a D500 instead? Many people cannot afford the price for a D5.

Coming soon... :)

Link | Posted on Sep 9, 2016 at 01:09 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

photenth: Wide angle wide open isn't that much of a challenge when even the background is in focus =/ I know this camera can do better. Put a 400mm f/2.8 or 600mm f/4.0 on this puppy and get it to work for its title of the best focusing camera on the market =)

"when working action shots i stick with what Michael said and which manifests in the old saying: "f8 and be there".
but about 20k frames into my D500 i have to say the new AF system in the current Nikons is already changing my shooting habits. there is something magical about it. =)"

Exactly my point. When you're not restricted by rules like 'F8 and be there', you open up creative opportunities.

Good AF and subject tracking allow you to compose more freely, shoot at wider apertures, etc. It was great working with Michael because he was willing to give anything a try - and I think that's an important attribute in a photographer who's looking to separate himself from the herd.

Link | Posted on Sep 9, 2016 at 01:08 UTC
In reply to:

Arun H: Comparing the ISO invariance pics with the Sony Alpha 7R II:

1. 5D Mark IV has cleaner ISO 6400 output.
2. ISO 200+5 stops looks better (compare the green fuzzy sections)
3. ISO 100+6 stops looks pretty bad on each

We can nitpick and interpret every which way, but I combine the above with dual pixel AF and think this is a great upgrade for Canon 5D III users.

I don't think you're comparing at common viewing size...

Link | Posted on Sep 8, 2016 at 23:02 UTC
In reply to:

9mm: I would not agree with you on comparing ISO. Over the ISO 400+pushes is Canon 5DM4 far better then Nikon D810 or Sony 7R2you wrote ". Only on ISO 100 or 64 is Nikon better. But in real life out of atelier you rarely use iso 100. Hence I would say Canon 5D4 is clear winner in DR!! Do not you see it on your charts?

No, we do not.

You are misunderstanding what DR is. You're conflating DR and high ISO noise performance. The high ISO noise performance of a midtone is better on the 5D IV compared to the D810. You can see this in our studio scene comparison.

But pushing lower ISO files, the D810 is far better. This *isn't* only relevant for low ISO photography - one of the points we keep trying to make is that an 'ISO-invariant' camera allows you to use a lower ISO *for a situation that traditionally demands a higher ISO* in order to retain highlights.

That means the extra DR of the D810 can be relevant for higher ISOs as well - if you lower ISO to preserve highlights.

The ISO 64 DR advantage is a real one - for situations where you *can* give the camera the extra light (e.g. wide open fast primes outdoors, landscape photography, etc.), you can collect enough light on the D810 to have it compete with medium format levels of dynamic range and SNR (all-round image quality).

Link | Posted on Sep 8, 2016 at 23:02 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

PhotoKhan: Very thorough, detailed and useful evaluation. Kudos.

Now for a request. Would it possible to get a Canon pro to tag along when making a similar 1DXII action real-life test?

I am not saying this with malice or second intentions, so please don't be offended but given that many of you use Nikon as a private choice and from what I've read in the past, I am starting to get the feeling that you don't "get" the operational side of 1D cameras.

A photographer familiar with them would be, at least, as useful as this one, accustomed as he is with Nikon.

Once more, thank you for this informative and brilliant piece.

... when in reality, we're finding differences users of any one system may not be aware of.

Why do those differences matter? B/c they could change the way you (technically) approach certain shots, often for the better.

Those of us that do shoot Nikon personally now do so b/c after evaluating all the equipment out there, we've found it best suits our needs. Very different from a user who has chosen one system & stuck with it. We're faced every day w/ an almost requisite re-evaluation of if our chosen system is the best for our needs, b/c we're always gaining info about who is best at what - whether we want to or not. This is not the case for most pros.

So this has nothing to do with how familiar we are with different systems, b/c it is literally our day job to understand all systems in & out (&information is always shared across all members so the team knowledge is built). We are the ones actually well-placed to un-biasedly evaluate, but we take & appreciate pro input all the time.

Link | Posted on Sep 8, 2016 at 22:14 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

PhotoKhan: Very thorough, detailed and useful evaluation. Kudos.

Now for a request. Would it possible to get a Canon pro to tag along when making a similar 1DXII action real-life test?

I am not saying this with malice or second intentions, so please don't be offended but given that many of you use Nikon as a private choice and from what I've read in the past, I am starting to get the feeling that you don't "get" the operational side of 1D cameras.

A photographer familiar with them would be, at least, as useful as this one, accustomed as he is with Nikon.

Once more, thank you for this informative and brilliant piece.

No offense taken. Your post was very politely worded, despite containing some misconceptions.

*Some* of our editors using Nikon as their personal choice does not mean they're not familiar with Canon. Speaking for myself: I've shot Canon for 10+ years, & have taught some Canon pros a thing or two about how to use (& operate) their cameras better.

The problem here is that when we point out something negative, some users of that system/camera immediately jump to the defensive & assume we've done something wrong. Because their experience doesn't match ours.

The problem with that is this: their experience typically *couldn't* match ours, b/c (1) they tend to not have the perspective of *other* systems we do, & (2) they're not generally trying to test certain parameters of a camera across *all* use cases &, instead, extrapolating performance based on *their* use for *their* photography.

But those claims of us getting it wrong spread the misconception we don't know what we're doing.

...

Link | Posted on Sep 8, 2016 at 22:08 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

Rich Rosen: The new Nikon AF system is amazing. The use of 3D AF is great if you know who the subject is prior to shooting, but in team sports, such as football, basketball and lacrosse, that is not always possible. In Dynamic AF is best in those instances.

Absolutely. An important point.

Link | Posted on Sep 8, 2016 at 21:45 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

photenth: Wide angle wide open isn't that much of a challenge when even the background is in focus =/ I know this camera can do better. Put a 400mm f/2.8 or 600mm f/4.0 on this puppy and get it to work for its title of the best focusing camera on the market =)

Cool - do report back, please. Or PM me. Will be curious to hear your thoughts, because I think this is yet another common misconception that warrants a re-think. :)

Link | Posted on Sep 8, 2016 at 21:44 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

RubberDials: Great video but why do Americans insist on pronouncing Nikon Nai-kon when all other English-speaking peoples (and the Japanese) call it it Nick-on?

Because when Americans try to pronounce it Nee-kon, we just end up sounding like posers.

Link | Posted on Sep 8, 2016 at 21:36 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

O_O: Will there be a big difference using a D500 instead? Many people cannot afford the price for a D5.

Like I said, they're different. How different is hard to assess, but it's far less in magnitude than the difference between these cameras and the D810, which while excellent up to the point of the first shutter actuation, lags in subject tracking during actual bursts.

The D500 can also track very well during bursts (like the D4 as well). Seems there's something about the higher-end cameras (D4/s, D5, D500) vs. the lower-end ones (D750/D810) that enable subject tracking during bursts better. Not sure exactly what it is, or if there are other variables (blackout times?).

Someone made a good point about blackout: D500 blackout isn't as good as D5, which *might* affect your ability to manually keep an AF point over your subject.

As we dig further into AF testing, we'll try & tease out the differences between the D500/D5, but it's difficult. It's not as easy to spot as the differences between Nikon and Canon subject tracking, e.g., which we're already criticized for over-emphasizing :-P

Link | Posted on Sep 8, 2016 at 21:33 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

stromaroma: Great video. I presume VR was turned off? That screws up the framing.

Hand-holding 300mm following an erratic kayaker screws up the framing. :-P

Link | Posted on Sep 8, 2016 at 20:56 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

Bartek S: I think I saw Nikkor 10-24 attached to the D5. Was a DX lens used to shoot 4K video, or for some other reason?

Just for 4K video samples.

Link | Posted on Sep 7, 2016 at 17:10 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

photenth: Wide angle wide open isn't that much of a challenge when even the background is in focus =/ I know this camera can do better. Put a 400mm f/2.8 or 600mm f/4.0 on this puppy and get it to work for its title of the best focusing camera on the market =)

300mm at 10m?

What are you shooting?

Let's try a thought experiment: pick more reasonable/realistic subject distances for the 300mm and 24mm cases, then take (amount of subject movement per second) and divide by (DOF).

What do you get?

Link | Posted on Sep 7, 2016 at 17:09 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

joe_leads: Today I will be shooting the Bobby Car racing at the local Kindergarten. I have some inspiration now and will bring my EL Quadra. ;-)

If I'd shoot sports regularly, I promise I'd return to Nikon, they look like great cameras for that.

They're very different cameras depending on your application.

Link | Posted on Sep 7, 2016 at 17:04 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

O_O: Will there be a big difference using a D500 instead? Many people cannot afford the price for a D5.

D5 has a dedicated AF processor to help with subject tracking, whereas D500 does not. So they're different.

How different? Hard to assess. The D500 is already far ahead most other cameras in this regard, but for to eke out that last bit of acquisition speed of lock-on and reliability, nothing beats the D5 (that we've tested). The D500 also did struggle in some situations that, to be fair, most cameras struggle far more with, but situations we'd expect the D5 to handle with slightly more finesse (low light soccer game - a bit of an extreme case).

Link | Posted on Sep 7, 2016 at 17:03 UTC
On article Field Test: Shooting action with the Nikon D5 (114 comments in total)
In reply to:

photenth: Wide angle wide open isn't that much of a challenge when even the background is in focus =/ I know this camera can do better. Put a 400mm f/2.8 or 600mm f/4.0 on this puppy and get it to work for its title of the best focusing camera on the market =)

Not necessarily true, since it's changes in *relative* distance to camera that can be taxing on the AF system. And there was a lot of that in these wide angle shots shot mere meters away from the subject. The background *is* out of focus in the wide open shots. We'll upload some full res samples soon.

Furthermore, there are 300mm F4 shots in there... Where the camera nailed almost every shot in the sequence (kayaked, motocross riders, etc.). Actually, more so than the wide open wide-angle shots.

Which kind of goes against the premise of your comment, and aligns more with 'it's relative distance changes to the camera that are most taxing' - which were quite drastic in our wide angle shots because if the small subject distances.

Link | Posted on Sep 6, 2016 at 21:58 UTC
In reply to:

Dylthedog: Like others I really want to see a 5DIII on the comparison list... come on DPR! :-)

We'll try to get 5D Mark III into the Exposure Latitude widget for the final 5D IV review.

Link | Posted on Sep 6, 2016 at 02:34 UTC
Total: 4248, showing: 1 – 20
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