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The Ever Hated Grainy Photo

samkusterbeck
Contributor

20220415-IMG_0729.jpgTo begin I have a CANON REBEL T7 with a 24-70 mm CANON lens. 
I have taken quite a bit of time scouring the internet for the do's and don't of photography. All my images are RAW files and I shoot in Manual mode and use the auto focus mode (which I feel like is what the issue is) 
ISO is 100 f/28 1/320 I think I was set at AL SERVO 
I point the red dot on the face and then I open the files and some/most of the pictures come out "annoyling" grainy. I don't know what to do!
Is the AF Point Selection just no good? I heard the center one is the best to use, but the face or subject I want in focus isn't always smack dab in the center.

Is it the distance I am shooting from? If so could someone explain to me in simple terms what and how the best  shooting distance is determined?

Is my camera no bueno and its just not capable sometimes of getting crisp shots?

Do I need to use manual focus and if so HOW> it seems like it would make photo taking take forever trying to make sure you get the right focus? 

38 REPLIES 38

I don't typically use the Live view and use the viewfinder- do you think one is better than the other?
I feel like the focus takes too long when I use the live view... 

Tronhard
VIP
VIP

Personally, when hand-holding (which is 99.9% of my photography), the viewfinder is the way to go. A tripod has three legs for a reason - that's the minimum, if not the optimum, number of support points for a stable shot.  When hand-holding, you needs to hold the camera as shown below: left hand under the lens, supporting the weight of the camera, right hand less support but with stability and using the controls, and the viewfinder to the eye, providing the contact to achieve the third point of support.

See what I mean here:
The correct techniquesThe correct techniques


cheers, TREVOR

The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris

Tintype_18
Authority
Authority

This has been very informative as I have a T7. Thanks for a valid question and to those who replied with the information. Lots to learn.

John
Canon EOS T7; EF-S 18-55mm IS; EF 28-135mm IS; EF 75-300mm; Sigma 150-600mm DG

ebiggs1
Legend
Legend

I use the eye level viewfinder 99% of the time. But I suppose it is a personal preference.

EB
EOS 1DX and 1D Mk IV and less lenses then before!

Tronhard
VIP
VIP

Looking at the photos, the issue, to me, seems to be in focus.  Exposure may be better or worse, but the focus in some images is not right.  You are using a good lens, and the shots I have seen do not suggest a shutter speed that would encourage camera shake, to I feel it is on what and how your camera is focusing.

I realize that you are using centre point focus, but the issue can be that even with setting a focus point correctly, as the camera is repositioned to compose or track the subject, the shutter button may lose track and focus on a different location.  The solution I am suggesting exploring takes the focus function away from the shutter and assigns to to the AF-On button at the back of the camera.  Thus you focus with that, it locks and then you can recompose and press the shutter button when ready to capture your image without risk of losing focus.

Here are a couple of You Tube videos on how to set that up and why you would want to do so:
See: https://www.youtube.com/watch?v=2AXUzslHnRc from Canon Aus.

And: Back Button Focus: Why and How! - YouTube
Setting up for the Rebel  camera:
 
The other thing I do is to set up AE-Lock (auto-exposure lock) on the button with that label on the back of the camera.  It is right beside the * button that is the usual place for the Focus lock.

There is a reason for both of these: as I said the advantage of using single (or very few) AF points is that you can place them precisely and the * can be set up to allow you to lock the focus and recompose.  On the other hand, exposure needs to be controlled too, and sensors like to make whatever is the area considered for exposure metering to be about 18% grey - as such it will tend to make a dark subject lighter than reality or make a white subject look grey.  By assigning AF-L on and using a single point of evaluation, one can point at a suitably toned location anywhere on the image, lock exposure, then lock focus on your subject with the * button beside it, recompose the photo and get both bang on.   It is more complicated to explain that to do actually, so again I suggest viewing this video.
 
Like anything else, it takes a wee while to get used to, and you need to get used to finding those buttons without looking, but when you do, you will have serious control over your images.
 
To give you an example of this, I took the following image with my camera set to BBF and AE-L.
DF2_1552 A.jpg
In this example, I needed to precisely get the closest eye in focus.  So, using my BBF I aligned my single point AF to the eye and tapped the AF-On button and the focus locked.  For the correct exposure, if I had used matrix metering the camera would have considered the vast amount of black in the image and over-exposed the subject.  So, using single point exposure, I metered on the jersey by the subject raised hand and pressed the * to lock that.  I then recomposed the image and pressed the shutter to execute the shot.  All this took barely 2 secs.
 

cheers, TREVOR

The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris

Hi Trevor. Unfortunately this forum software doesn't number responses. Look at my response where I posted the two dog photos. You can see that the OP used single point One Shot AF. The one focus point is shown as a red square. 

John Hoffman
Conway, NH

1D X Mark III, M200, Many lenses, Pixma PRO-100, Pixma TR8620a, Lr Classic

Hi John, thanks for that. 🙂  Yes it is confusing and very frustrating! 

I have expanded on my post to include what I hope may be of significant help - i.e. the use of BBF and the AE-L features to make sure that critical parts of the subject are in focus and the image is correctly exposed.
My concern is that in using the shutter button to hold focus that this could be an issue in focus shift if the finger relaxes a bit, or the subject moves.  I thought it was worth a try and it is a well-established method.


cheers, TREVOR

The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris

In the dog images the focus point is on the dog for both images. In One Shot AF the shutter won't fire unless focus is confirmed.

The shutter speed is almost twice the focal length- 1/40 second/24mm. Should be enough for normal handholding stability.

That's why I'm thinking severe hand holding shake or a potential camera problem.

That's why i recommended the OP see about a tripod to run a test.

A number of the other images also so single point One Shot AF with focus point in the same location on in and out of focus images.

John Hoffman
Conway, NH

1D X Mark III, M200, Many lenses, Pixma PRO-100, Pixma TR8620a, Lr Classic

First I have been driven mad by not finding posts that are not in chronological order, as they are slotted with the posts to which they reply, as opposed to the struct chronology of the old interface.  Further made worse by having to keep clicking to see more... 

I certainly agree that shooting with a tripod is a good idea.  In the dog images you mention - that I finally found - the top image seems to have the eye more in focus but when I look at the focus point, it is on the nose (rather than the eye).  Since the face of the dog is turned to our left, that puts the eye in roughly the same focal place as that point on the nose, which likely saves that shot.

On the other hand the lower photo has the face more direct and the focus point is still not on the eye, but this time the DoF does not allow for that degree of depth.

So, to me, the issues are:
1. Is the camera operating properly?
2. Is Sam focusing on the right spot: the eye - I suspect not, and that is an issue.
3. If not, why not?  If she intends to focus on the dog's eye, has the focus point shifted during composition?

So, I am not at odds with you there, but offering a suggestion to investigate a solution that I know works well for accurately shooting a wide range of subject.
In the end, I think we are all still feeling our way with this puzzle! 🤔 


cheers, TREVOR

The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
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