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Reviewing files in the EVF

  
 
RoamingScott
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p.1 #1 · p.1 #1 · Reviewing files in the EVF


I've often struggled with reviewing my files in the EVF, as it can be somewhat difficult to see if critical sharpness was obtained. I assumed this is because when you shoot RAW only, there is a very small (2 megapixel?) jpeg file that is used for playback/thumbnail. My assumption is that while reviewing you are seeing this jpeg.

Maybe that's wrong?

If it's correct, would shooting RAW+JPEG then allow you to review a full resolution jpeg instead? I have tested this myself and can't really discern a difference, but I have eye floaters so bad that I can't really trust what I'm seeing half the time anyways.



May 20, 2023 at 11:49 AM
Steve Spencer
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p.1 #2 · p.1 #2 · Reviewing files in the EVF


RoamingScott wrote:
I've often struggled with reviewing my files in the EVF, as it can be somewhat difficult to see if critical sharpness was obtained. I assumed this is because when you shoot RAW only, there is a very small (2 megapixel?) jpeg file that is used for playback/thumbnail. My assumption is that while reviewing you are seeing this jpeg.

Maybe that's wrong?

If it's correct, would shooting RAW+JPEG then allow you to review a full resolution jpeg instead? I have tested this myself and can't really discern a difference, but I have eye floaters so bad that I can't really trust what I'm
...Show more

I never check images in the EVF, but I know some people do. Some claim higher resolution EVFs are good for that. Personally, I don't check sharpness until I am back home on the monitor. I think if you wanted to check sharpness you would be better off shooting RAW + high resolution JPEG and then you might get the high resolution JPEG to view in the EVF. I am pretty sure you will never get the RAW to view in the EVF.



May 20, 2023 at 11:58 AM
RoamingScott
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p.1 #3 · p.1 #3 · Reviewing files in the EVF


Steve Spencer wrote:
I think if you wanted to check sharpness you would be better off shooting RAW + high resolution JPEG and then you might get the high resolution JPEG to view in the EVF. I am pretty sure you will never get the RAW to view in the EVF.


Like I said, I've tried this and honestly couldn't tell a difference, but my eyes aren't the best test case.

I have heard some people use a custom profile with sharpness at +4/+5, which I assume "emulates" how sharp the RAW is.

Overall I tend to only worry about this when doing MFD type work where there are disturbances by the wind which could push or pull the subject out of focus easily.

My main thought was especially geared towards the super high res EVFs (9mil), and how would they necessarily benefit if using a tiny undersized jpeg for preview.



May 20, 2023 at 12:00 PM
1bwana1
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p.1 #4 · p.1 #4 · Reviewing files in the EVF


I do find reviewing sharpness in the EVF useful in certain types of shooting like landscape, architectural, wildlife, and surprisingly portraits. I don't find it possible to do critical sharpness review on any of the rear screens I have tried it on. The best being the Leica M 11 that I have seen. The same with lower resolution or dim EVFs, so I didn't use to bother. But the 9M Dot EVF in the A1 is good enough to spot problems with critical sharpness. It is also useful to zoom in on the high res EVF screen. So now I do review in the EVF with confidence.

I don't think whichever format or resolution you shoot in will matter in this regard. The image will be displayed at the resolution the EVF screen allows. Results will be limited by this. When i review on the A1 EVF screen it does appear to me that the screen is applying a lot of sharpening and contrast on its own. Sometimes beyond the point I would like it to. Not sure about the details of this, but that is the way it feels to me at times.



May 20, 2023 at 12:51 PM
RoamingScott
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p.1 #5 · p.1 #5 · Reviewing files in the EVF


The Z9 manual is frustratingly vague about this.

Regarding shooting RAW+JPEG: "Only the JPEG copy is displayed during playback. If only one memory card was inserted in the camera when the photos were recorded, the NEF (RAW) copies can only be viewed using a computer."

That tells me that you SHOULD be viewing a full resolution JPEG if shooting both, yet the playback at 100% zoom doesn't seem different at all to me than simply shooting RAW.



May 20, 2023 at 01:35 PM
Spectro
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p.1 #6 · p.1 #6 · Reviewing files in the EVF


I appreciate the EVF for viewing on bright days and many others I shoot with (using various brands) do as well. We often have exposure settings locked in as we are shooting bursts so are primarily looking to confirm focus more then anything. Itís especially helpful as we are normally tagging photos in camera for quick edits later on deadline and donít want to pick a photo in a sequence that is not critically sharp.


May 20, 2023 at 02:04 PM
CanadaMark
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p.1 #7 · p.1 #7 · Reviewing files in the EVF


A regular NEF actually has a few files inside it, but one is a full resolution basic JPEG, and that is what you see when you view a NEF at 100% magnification in camera either on the rear LCD or viewfinder. You will never see the actual RAW file in-camera as it needs to be demosaiced and processed to become viewable, and that isn't practical in-camera.

The smaller JPEGs (~0.3MP and ~1.8MP) are used for thumbnails of various sizes. It's probably no coincidence that one of those JPEGs is about the same resolution as the rear LCD. There is even a very tiny TIFF file inside. There is no need to shoot RAW + JPEG if it's just for reviewing purposes, checking sharpness, etc.

The embedded JPEG will have your picture control settings applied (as will the EVF live preview), but note that this also affects your live histogram, so if you rely on that histogram, you probably want to be using Neutral or Flat profiles. There is some evidence suggesting that increasing the picture control sharpness helps the AF in low contrast situations, so I use Neutral plus a few ticks of sharpening just in case it actually does something (I haven't noticed either way). The camera defaults to "Auto" picture control. Most people are just shooting RAW anyways so you can play around with the picture control stuff without any actual effect on your images.



May 24, 2023 at 05:06 PM
 


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Ross Martin
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p.1 #8 · p.1 #8 · Reviewing files in the EVF


RoamingScott wrote:
I've often struggled with reviewing my files in the EVF, as it can be somewhat difficult to see if critical sharpness was obtained. I assumed this is because when you shoot RAW only, there is a very small (2 megapixel?) jpeg file that is used for playback/thumbnail. My assumption is that while reviewing you are seeing this jpeg.

Maybe that's wrong?

If it's correct, would shooting RAW+JPEG then allow you to review a full resolution jpeg instead? I have tested this myself and can't really discern a difference, but I have eye floaters so bad that I can't really trust what I'm
...Show more

Reviewing images through the EVF while on a landscape shoot is part of my workflow, not just for zooming in to check sharpness and depth of field but also for evaluating the composition I just made - I really enjoy reviewing images as I work. The A7RV is the first EVF Iíve used where image review is highly effective, and simply gorgeous! For me itís been a revelation and adds a lot to my enjoyment while shooting, and I look forward to NikonĎs first camera when they go all out with the EVF.

By the way, I have developed quite a lot of floaties in my vision in the last few years, itís a little disconcerting. When did you start getting yours? Iím 57 so I guess mine started in my early 50s. Itís annoying but I am learning to adapt to it, though I really hope it doesnít become a lot worse. I read that there is a type of laser surgery that can be used in certain cases to get rid of some of them. Have you seen an eye doctor about it? I am thinking of scheduling an appointment at a really good eye institute in my area.

Edited on May 24, 2023 at 05:37 PM · View previous versions



May 24, 2023 at 05:29 PM
RoamingScott
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p.1 #9 · p.1 #9 · Reviewing files in the EVF


CanadaMark wrote:
A regular NEF actually has a few files inside it, but one is a full resolution basic JPEG, and that is what you see when you view a NEF at 100% magnification in camera either on the rear LCD or viewfinder. You will never see the actual RAW file in-camera as it needs to be demosaiced and processed to become viewable, and that isn't practical in-camera.

The smaller JPEGs (~0.3MP and ~1.8MP) are used for thumbnails of various sizes. It's probably no coincidence that one of those JPEGs is about the same resolution as the rear LCD. There is even a
...Show more

Thanks, that confirms what I felt like I was seeing. It makes sense that there's a full res jpeg used for playback within the NEF file given that nothing seemed to change shooting RAW vs RAW+JPEG. I assume, then, that a higher resolution EVF would be quite beneficial for a Nikon shooter vs the currents screens, in terms of playback fidelity/sharpness review.



May 24, 2023 at 05:29 PM
RoamingScott
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p.1 #10 · p.1 #10 · Reviewing files in the EVF


Ross Martin wrote:
Reviewing images through the EVF while on a landscape shoot is part of my workflow, not just for zooming in to check sharpness and depth of field but also for evaluating the composition I just made - I really enjoy reviewing images as I work. The A7RV is the first EVF Iíve used where image review is highly effective, and simply gorgeous! For me itís been a revelation and adds a lot to my enjoyment while shooting, and I look forward to NikonĎs first camera when they go all out with the EVF.

By the way, I have developed
...Show more

I've had floaters since my late teens, but they've gotten WAY worse in my late 30s. My primary eye doc once couldn't even see my retina because it was totally obstructed. I talked to a retinal specialist and he said I'm experiencing vitreous detachment, a natural process most people experience around your age, not mine, I'm just an early bloomer In my case, they led to significant, but not serious, macular pucker on my right retina. So far, no serious issues stemming from that, but also fixable. I have a history of concussions so that might have sped things up.

You could completely replace the vitreous or do the laser thing where they blast the big ones into smaller ones, but those come with risks that I'm not ready to face. My vision is still 20/15 corrected when they aren't totally in my way, and a quick glance will clear them up for a bit. It's definitely starting to slow my photography down, though, and makes using a mid-resolution EVF a little wonky...I sometimes can't tell if the image isn't sharp or if I'm just looking through a pile of eye goo.



May 24, 2023 at 05:37 PM
Ross Martin
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p.1 #11 · p.1 #11 · Reviewing files in the EVF


RoamingScott wrote:
I've had floaters since my late teens, but they've gotten WAY worse in my late 30s. My primary eye doc once couldn't even see my retina because it was totally obstructed. I talked to a retinal specialist and he said I'm experiencing vitreous detachment, a natural process most people experience around your age, not mine, I'm just an early bloomer

You could completely replace the vitreous or do the laser thing where they blast the big ones into smaller ones, but those come with risks that I'm not ready to face. My vision is still 20/15 corrected when they aren't
...Show more

Dangit man, sorry you developed those earlier than normal! This year it has been affecting how I feel about getting outdoors because skies and other bright areas really trigger the view of floaties.




May 24, 2023 at 05:42 PM
runakid
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p.1 #12 · p.1 #12 · Reviewing files in the EVF


So sorry about your eyes.
dan



May 24, 2023 at 05:57 PM
RoamingScott
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p.1 #13 · p.1 #13 · Reviewing files in the EVF


Ironically cardio is supposedly the best thing you can do to reduce them, but doing cardio with them can be disorienting!

Ross Martin wrote:
Dangit man, sorry you developed those earlier than normal! This year it has been affecting how I feel about getting outdoors because skies and other bright areas really trigger the view of floaties.





May 24, 2023 at 06:44 PM
johnvanr
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p.1 #14 · p.1 #14 · Reviewing files in the EVF


I know a guy who goes through all his files on his camera at the end of the day. Weíre talking bird photography, so thousands of files. Iíve never understood that, since the LCD or the EVF are poor resemblances of the actual images. But if it works for him, why not? He will never find out if he made the wrong decision about a fileÖ


May 24, 2023 at 06:52 PM







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