-2/3 question

I am reading some books on photography to refresh my memory , In book it says that -2/3 is good for greens. I need helping setting camera . is this pressing the -/+ button and moving it to -2 ?

This is called push or pull correct ?


second question

in another book it talks about "blinkies" which are highlights over exposed how do you check for these on a 20D ?

third question

when looking in view finder and its focusing and you here the beep sound this mean its in focus ? correct ? If so how come some times I don't here it ?

1. Yes, hold down the +/- button and move it but not to 2, only 2 notches to the left (so just before the 1). I've never heard the terms push and pull. I calling it underexposing the image by 2/3.
2. I believe you see them while you review the images on your camera screen but never use this feature on my camera (not sure it even has it).
3. Yes, hearing a beep and seeing the red dots mean you have achieved focus. When you don't see/hear it you haven't achieved focus and need to re-try.

#1-Never heard minus is good for greens... I can tell you when I use exposure compensation +/- it is always on the + side. I call it EC

#2 when viewing the image on the screen the highlights will "blink" if blown out...not sure if 20D has this ability but the 40D does. "blinkies" are not always bad but for the most part you avoid them especially for your subject. a good example is in the ice skating I covered this weekend there are a lot of blown highlights in the ice....not a big deal because subject is exposed correctly. If you learn to read the histogram you can see blown highligts easily also

#3 never used focus beep...first thing I turn off on a new camera. Learn to shoot without it so that its not a crutch.... use the viewfinder or there is a focus lock * in the viewfinder... I never notice it but its there

1: In "Understanding Exposure" it says this. I have had good results using this rule. It depends on iwhat mode you are in as to what you set on your camera. For a 20D, if you are in AV or TV, turn you dial (back of camera) until your meter shows the -2/3 when pointed at a green subject. Leave it set to this if you are metering off of green plant life. If using Manual (recommended) point your camera at green plant life and adjust your settings until the meter reads -2/3. This will effectively do the same thing as before, except that the camera will not attempt to change your settings in between shots.

Push/pull is a film reference that does not apply much to digital, since you can change your ISO as you see fit. It is more of an issue when you only have one type of film (400), but you need the shutter speeds afforded by another film (800). You would shoot as if you had ISO 800 film loaded, but tell the processor to "push" it 1 stop. If you should have used ISO 1600, you would tell them to push it 2 stops.

2. The "blinkies" are the parts of the image that cannot be brought back with image editing software (simple explanation). Completely blown out (super simple).

3. It should, but I turned it off right away (like eigga) so I can't comment exactly. It annoyed the snot outta me. Have a look at this:
https://photography-on-the.net/forum/showthre​ad.php?t=46965

If you learn to use Back Button Focussing early on, it will help you meter in the future.

i always shoot -2/3 stops. its a lot easier to bring a photo back up than it is to try to get back details lost in highlights.

DDCSD wrote in post #5912912
Push/pull is a film reference that does not apply much to digital, since you can change your ISO as you see fit. It is more of an issue when you only have one type of film (400), but you need the shutter speeds afforded by another film (800). You would shoot as if you had ISO 400 film loaded, but tell the processor to "push" it 1 stop. If you should have used ISO 1600, you would tell them to push it 2 stops.

I've never actually tried it, but don't you load ISO 400 then set the camera dial to 800, so that it meters as if you had ISO 800 film? Exposing for the correct film speed then pushing by 1 stop doesn't make a whole lot of sense to me.

HaroldC3 wrote in post #5912789
2. I believe you see them while you review the images on your camera screen but never use this feature on my camera (not sure it even has it).

While in review mode, press info until you see a histogram displayed along with the image... any blown highlights will blink.

Primary green should be zeroed out on your meter. A lighter pastel green should be put at +1 on your meter though that depends on how light the colour is. Darker greens go to - on the meter.

#3- If it does not beep it may be in AF-servo mode (or it's not in focus in the other modes).

DDCSD wrote in post #5912912
Push/pull is a film reference that does not apply much to digital, since you can change your ISO as you see fit. It is more of an issue when you only have one type of film (400), but you need the shutter speeds afforded by another film (800). You would shoot as if you had ISO 400 film loaded, but tell the processor to "push" it 1 stop. If you should have used ISO 1600, you would tell them to push it 2 stops.

I'm glad someone cleared this issue up.. Pushing and pulling only applies to film not digital.. With digital if you underexpose by 2 stops for example you have an image that is underexposed by 2 stops everything being relevant.. Yes maybe you can pull the image out of the fire using PP but the image has not been pushed..

penagate wrote in post #5913258
I've never actually tried it, but don't you load ISO 400 then set the camera dial to 800, so that it meters as if you had ISO 800 film? Exposing for the correct film speed then pushing by 1 stop doesn't make a whole lot of sense to me.

Errrr..... yep, sorry about that. Out-thunk myself. You are correct. I corrected it in my post. Thank you.

yogestee wrote in post #5914092
I'm glad someone cleared this issue up.. Pushing and pulling only applies to film not digital.. With digital if you underexpose by 2 stops for example you have an image that is underexposed by 2 stops everything being relevant.. Yes maybe you can pull the image out of the fire using PP but the image has not been pushed..

Like a number of things (e.g. dodging and burning), the terms are used to explain a similar process in digital even though the methods to accomplish them are vastly different.

e-k

Try this when you have some free time: First set the f-stop & shutter speed you need. Then adjust the ISO.
Need an exposure crutch?

This shows how the subject can affect the exposure & why manual keeps me worry free:
Post #47

yogestee wrote in post #5914092
I'm glad someone cleared this issue up.. Pushing and pulling only applies to film not digital.. With digital if you underexpose by 2 stops for example you have an image that is underexposed by 2 stops everything being relevant.. Yes maybe you can pull the image out of the fire using PP but the image has not been pushed..

Of course it has. With PP, you're doing with digital what lab technicians did with film that was underexposed by shooting at a higher ISO setting.

DStanic wrote in post #5914018
#3- If it does not beep it may be in AF-servo mode (or it's not in focus in the other modes).

Ok thanks ! I was wondering why it does not blink some times but it looks in focus through view finder ......

Sigh I have forgotten a lot about SLR photography