topic Re: Canon 80D pictures a overexposed in EOS DSLR & Mirrorless Cameras

Canon 80D pictures a overexposed

Assaf — Fri, 20 Jul 2018 17:13:16 GMT

i just cant get my head around it.

the pictures looks good on live view. the histogram looks fine when i take the picture its completly overexposed.
i have being told it might have something to do with the lens im using is very old (manual 50mm 1.8 olympus)
but this lens worked great with my old camera (600D)

is there any reason for why the camera is suddenly decided to give me a headache?

Re: Canon 80D pictures a overexposed

kvbarkley — Fri, 20 Jul 2018 17:37:18 GMT

What mode are you in? Does it happen in manual mode?

Re: Canon 80D pictures a overexposed

Assaf — Fri, 20 Jul 2018 17:39:10 GMT

indeed, i forgot to mention that i was shooting at manual

Re: Canon 80D pictures a overexposed

RobertTheFat — Fri, 20 Jul 2018 17:48:40 GMT

@Assaf wrote:
indeed, i forgot to mention that i was shooting at manual

And your shutter speed and aperture settings matched what the meter in the viewfinder told you? Live view isn't a reliable indicator, because it tries to show you a properly exposed image, regardless of your settings. Most cameras have an option to have it instead show you what you're actually going to get, but that option isn't active by default.

Re: Canon 80D pictures a overexposed

Assaf — Fri, 20 Jul 2018 17:56:43 GMT

i was relying on the histogram not what the liveview is showing me.
witch shows a change. before taking the picture he pritty much, shows that the he is high on midtones and shadows but low on highlight. on the other hand its all highlight on the picture after being taken.

when it comes well as i said its a manual lens an old one.so apparture is also need to adjusted manually
but as i said it was never a problem with my previus camera. so i find it confusing.

Re: Canon 80D pictures a overexposed

diverhank — Fri, 20 Jul 2018 18:08:28 GMT

Go to the menu and make sure the Live View has the Simulation Enabled option activated. Then what you see on live view is what you will get.

Re: Canon 80D pictures a overexposed

TCampbell — Fri, 20 Jul 2018 18:12:44 GMT

I'm wondering if the aperture blades aren't working on the lens.

Suppose you plan to shoot at f/8 using your 50mm f/1.8 lens.

While you compose a shot looking through the viewfinder, the aperture blades are wide open (to f/1.8). If you use live-view, rember that it's "exposure SIMULATION" ... so it still keeps the aperture blades wide open (they aren't stopped down to f/8) but the camera will "simulate" the exposure on the viewfinder.

When you take the shot, the aperture blades are supposed to stop down to f/8 before the shutter opens. But if the aperture blades don't do this, then you would get an over-exposed shot.

You might want to press the "Depth of Field Preview" button on the camera while looking through the lens to make sure the aperture blades are working.

Re: Canon 80D pictures a overexposed

Assaf — Fri, 20 Jul 2018 18:12:49 GMT

it was already opened, well i guess it means i have to get a new lens.

Re: Canon 80D pictures a overexposed

kvbarkley — Fri, 20 Jul 2018 18:18:02 GMT

(manual 50mm 1.8 olympus)

What does olympus mean here?

If it is a totally manual lens, no wonder that the camera is confused.

Re: Canon 80D pictures a overexposed

TCampbell — Sat, 21 Jul 2018 01:19:48 GMT

The good news is the Canon EF 50mm f/1.8 STM is the most affordable lens in the lineup... it’s about $125 for a new lens.

Re: Canon 80D pictures a overexposed

Assaf — Sat, 21 Jul 2018 09:51:06 GMT

lol yeah i already figured that one out 🙂
and its was indeed a good news 😛

Re: Canon 80D pictures a overexposed

ebiggs1 — Sat, 21 Jul 2018 14:13:17 GMT

"What does olympus mean here?"

It means the lens is faulty or doesn't work with a 80D.

Re: Canon 80D pictures a overexposed

Assaf — Sat, 21 Jul 2018 15:23:58 GMT

Olympus is just the name of company made the lens (i think)

any i dont think its fulty just outdated 😞

any way i like someone already saids good thing those kind os lenses are usualy the affordable ones

Re: Canon 80D pictures a overexposed

ebiggs1 — Sun, 22 Jul 2018 13:46:39 GMT

"...the affordable ones..."

Not if they don't work! A used ef 50mm f1.8 is affordable at approx. $50 bucks and they work.

Re: Canon 80D pictures a overexposed

Assaf — Sun, 22 Jul 2018 13:52:13 GMT

not sure you understood what i was talking.
i was talking about finding replacements those lens (even recent models) are relativly affordable.

tommorow im going to get my self cannon 50mm 1.8 STM.
pritty sure this one is going to work just fine 🙂

Re: Canon 80D pictures a overexposed

ebiggs1 — Sun, 22 Jul 2018 14:30:46 GMT

" tommorow im going to get my self cannon 50mm 1.8 STM.
pritty sure this one is going to work just fine "

Great, it will work just fine. Sometimes when you try for too affordable, you wind up spending more money.

Re: Canon 80D pictures a overexposed

Assaf — Sun, 22 Jul 2018 17:12:08 GMT

i already learned that lesson... the hard way 😞

Re: Canon 80D pictures a overexposed

ebiggs1 — Mon, 23 Jul 2018 08:05:54 GMT

The good thing, you learned something. Sometimes education can be expensive, too.

Re: Canon 80D pictures a overexposed

Waddizzle — Mon, 23 Jul 2018 11:15:41 GMT

@Assaf wrote:
indeed, i forgot to mention that i was shooting at manual

I frequently use a manual lens in manual mode, with Auto ISO. I always use the viewfinder to measure exposure, never Live View.

Re: Canon 80D pictures a overexposed

TCampbell — Mon, 23 Jul 2018 14:19:38 GMT

Something to keep in mind is how the metering system works.

If you have a hand-held light meter, the light is falling directly on the meter. There is no lens. The meter reports the amount of light.

If you have a meter in a camera, then light has to pass through the lens before it reaches the meter. Since an f/4 lens reduces the light more than an f/2.8 lens... the meter doesn't really know how much light is actually in the environment unless it also knows how much the light is reduced as it passes through the lens.

For electronic lenses that interface with the camera, that information is reported and the camera can properly calculate the exposure. But for a completely manual lens with no electronic interface, the camera has no information about the lens, doesn't know the lens aperture, and can't realistically make any prediction about any exposure (not an accurate exposure anyway).

There are some manual lenses that are "chipped". Rokinon makes lots of lenses that are comletely manual, and often they make the same version in an edition that talks to the camera. If you use a completely manual (no communication of any kind) lens, then you would need to meter with an external light meter to get an accurate meter reading. If you have the chipped version (electronic interface) then it's still a manual lens, but at least the camera knows what's attached and the f-stop ... so it can provide a meter reading which is likely to be accurate.