A really noob question....

what would this look like at +1/6EV?

Byte size: ZERO | Content warning: NOT AN IMAGE

OVEREXPOSED!!
If you have the file in RAW you could check it......

Right now (if I'm reading the scale right) you're set to +1 2/3 EV. 1/6 EV would be between the center bullet and the first mark.

Can you adjust 1/6 EV? My camera can't.

-js

number six wrote in post #4076721
Right now (if I'm reading the scale right) you're set to +1 2/3 EV. 1/6 EV would be between the center bullet and the first mark.

Can you adjust 1/6 EV? My camera can't.

-js

I don't see the indicator anywhere (+1 2/3 or otherwise).

What he's asking, I think, is how is the rounding between 1/3 stops done. Does at 1/6 (+ a little bit) does it show 1/3 over exposed or does it wait until it really is 1/3 over exposed to show +1/3. I have no idea. "Correct" exposure at that point is pretty subjective anyhow and the scene is about 10x more important at that point than some average light value or formulaic metering.

hard12find wrote in post #4076650
OVEREXPOSED!!
If you have the file in RAW you could check it......

This thread has me terribly confused, although I think vondo is on to something here...

I didn't see the indicator either. I expected it to be below the line of dots. But if you look at the 1 2/3 position you'll see a colon instead of a dot. (Looking at the big pic, of course.) Is that the pointer? Dunno.

If the question is about exposure, I assume that somewhere between 0 and 1/3 the pointer jumps in 1/3 step increments. Mine does, anyway.

-js

number six wrote in post #4076781
I didn't see the indicator either. I expected it to be below the line of dots. But if you look at the 1 2/3 position you'll see a colon instead of a dot. (Looking at the big pic, of course.) Is that the pointer? Dunno.

If the question is about exposure, I assume that somewhere between 0 and 1/3 the pointer jumps in 1/3 step increments. Mine does, anyway.

-js

That's not a colon, that's a plus over top of the 1 2/3 indicator...

vondo wrote in post #4076791
That's not a colon, that's a plus over top of the 1 2/3 indicator...

Of course it is. I wasn't thinking. So no pointer is to be found anywhere.

-js

Guys, if I understand correctly, this is not about Exposure Compensation of +1/6 stop!
He is asking which aperture, shutter speed and ISO combination has to be set on the camera to achieve Exposure Value of +1/6 EV.

Ie, f/1.0 at 1s and ISO 100 gives EV 0.
f/1.4 at 1s and ISO 100 equals EV 1, etc..
It’s more complicated than it looks like.

Here is the calculator, but values are in full stops and I am too lazy to play with it.

http://www.dpreview.co​m/learn/?/key=exposure

JohnnyGalaga wrote in post #4077747
Okay well I'm a newbie and I'm trying to figure out what "+1/6EV" means and what everyone else is talking about.

EV stands for exposure value. It's a measure of how much light reaches the film. Errr, sensor.

Check out the link that Hermeto posted for an explanation.

-js

My guess is that it would point to the zero mark, but I don't understand why you're bothered!

reason I ask is because I read that the 40D needed to be set to +1/6EV to match the 30D

"The good news is, the Canon EOS 40D essentially matches the 30D's low noise capabilities. The process of determining this was not exactly straight forward as I've determined that the 40D's sensor is about 1/6 to 1/3 of a stop less sensitive than the 30D's. This means that images shot with identical shooting parameters (shutter speed, aperture & ISO) are not exposed exactly the same. I should note here that the 40D's metering is fine - this change does not cause underexposed images. In my eyes, the 40D noise is equal to the 30D right up through ISO 3200 when identical shooting parameters are used. I'd rate the 40D slightly better at ISO 800. But, after making the exposures identical (+1/6 EV on the 40D), the 30D has a slight edge at ISO 1600 and 3200 - and the two are about even at ISO 800. "

http://www.the-digital-picture.com …al-SLR-Camera-Review.aspx

They're not necessarily right. The exposure difference could be that one or the other camera has a slow (or fast) shutter. And that kind of variance can occur within a model, not just between models. If they tested multiple calibrated 30Ds and multiple calibrated 40Ds and presented a mean and standard deviation, I might be inclined to consider that claim.

Agree with Jon. Anyway, a 1/6 stop change is basically no change. Our meters, shutters, apertures and ISO settings probably vary as much as 1/2 a stop from camera to camera anyway...

-js