Brand new Canon 7D problem - please help!
Brand new Canon 7D problem - please help!
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Original Poster

Original Poster:

5,429 posts

205 months

Tuesday 25th December 2012
quotequote all
Got my brand new 7D today from Panamoz however there seems to be a problem

When I shoot in live mode I see the image I've taken show up on the display however when shooting in 'non live mode' IE through the shutter the picture that displays on the screen is totally black.

update on the above, full auto, shutter priority and aperture priority are all stuck at 1/4000th and F22 or similar, it's as if the camera thinks its looking at something really bright however this is in my living room with not a huge amount of natural light, certainly not enough light to be shooting at 1/8000th.

Full manual mode eliminates the problem completely.

Seems I've got a duff one?!

Any ideas? Absolutely gutted to be honest as its brand new!

Crafty_

14,081 posts

229 months

Tuesday 25th December 2012
quotequote all
What lens are you using ? the 15-85 that came with it ? This is a long shot as there may be incompatibility with some 3rd party lenses (Sigma for example). If you can, try another lens anyway. Other than that it may well be faulty frown

If you take a picture in manual mode that is roughly correct exposure, where is the exposure indicator ? (the collection of dots/lines with a little arrow that moves along) ? If its at either end of the scale I'd say there is a metering problem - can you check what metering mode its in ? first button on the left on the top of the camera - put it in evaluative if it isn't already.

The rear screen will be blank when shooting, it does that. If you press INFO button to the left of the screen it should cycle through a screen with the usual display on like this:



and the level screen like this (animated):



The image you are shooting will not appear on the back screen unless in live view mode.

Edited by Crafty_ on Tuesday 25th December 18:25

Original Poster

Original Poster:

5,429 posts

205 months

Tuesday 25th December 2012
quotequote all
Yeah tried it with both a 15-85 and a 70-200, both also brand new frown

Original Poster

Original Poster:

5,429 posts

205 months

Tuesday 25th December 2012
quotequote all
Strange that live view mode doesn't create the problem?!

Crafty_

14,081 posts

229 months

Tuesday 25th December 2012
quotequote all
so in aperture priority when using liveview you can select aperture ok ? thats weird.

I'd try a factory reset (again, long shot) other than that I think it will have to be returned frown

RobDickinson

31,343 posts

283 months

Tuesday 25th December 2012
quotequote all
Try a hard reset, it cant hurt.

Sounds to me like the metering is whacky. What does the meter read in manual mode, always saying you are under exposing?

XG332

3,927 posts

217 months

Tuesday 25th December 2012
quotequote all
Is it displaying a blank screen or taking black photos?

Original Poster

Original Poster:

5,429 posts

205 months

Wednesday 26th December 2012
quotequote all
XG332 said:
Is it displaying a blank screen or taking black photos?
It's taking black photos, the metering in manual mode is as far right as possible, even putting the aperture wide open and doing a 30 sec exposure doesn't bring it left at all!


Lakelord

1,756 posts

233 months

Wednesday 26th December 2012
quotequote all
There was a recent update on the firmware - has it got the latest level installed? Don't understand why you should experience this problem but it might be worth upgrading it to see if this fixes it?

Lakelord

1,756 posts

233 months

Wednesday 26th December 2012
quotequote all
There was a recent update on the firmware - has it got the latest level installed? Don't understand why you should experience this problem but it might be worth upgrading it to see if this fixes it?

Lakelord

1,756 posts

233 months

Wednesday 26th December 2012
quotequote all
There was a recent update on the firmware - has it got the latest level installed? Don't understand why you should experience this problem but it might be worth upgrading it to see if this fixes it?

CommanderJameson

22,096 posts

255 months

Wednesday 26th December 2012
quotequote all
Mirror problem, if live view is hunky dory and viewfinder not?

Eta battery out, count to ten, battery back in. Any better?

Edited by CommanderJameson on Wednesday 26th December 14:11

Original Poster

Original Poster:

5,429 posts

205 months

Wednesday 26th December 2012
quotequote all
CommanderJameson said:
Mirror problem, if live view is hunky dory and viewfinder not?

Eta battery out, count to ten, battery back in. Any better?

Edited by CommanderJameson on Wednesday 26th December 14:11
Tried that unfortunately, nothing!

XG332

3,927 posts

217 months

Wednesday 26th December 2012
quotequote all
Quick things i can think of, some have been already suggested.
Update to latest firmware.
Factory Reset in options menu.
You say you have tried both lenses with the same results, If these dont work then i think its time to contact the seller or canon and get it looked at.

XG332

3,927 posts

217 months

Wednesday 26th December 2012
quotequote all
Also, Are you able to change the aperture at all? Press the DoF button (do not release the button) and try to change the aperture value. Looking through the viewfinder, it should get brighter or darker as you change the aperture.

Original Poster

Original Poster:

5,429 posts

205 months

Wednesday 26th December 2012
quotequote all
After.a bit more research it would appear the problem is with the pentaprism meter (whatever that is!).

Realised it can't be the mirrors as it works in full auto mode.

RobDickinson

31,343 posts

283 months

Wednesday 26th December 2012
quotequote all
Canon put the metering system up in the viewfinder area (for some technical reasons).

Looks like your meter is broke.

Original Poster

Original Poster:

5,429 posts

205 months

Wednesday 26th December 2012
quotequote all
RobDickinson said:
Canon put the metering system up in the viewfinder area (for some technical reasons).

Looks like your meter is broke.
Yep someone else has confirmed that elsewhere as well.

Is it an easy fix as the company I bought it from aren't back in till the 2nd.

RobDickinson

31,343 posts

283 months

Wednesday 26th December 2012
quotequote all
Try shooting in manual mode for a bit and chimp.

You cant fix it yourself.

Original Poster

Original Poster:

5,429 posts

205 months

Wednesday 26th December 2012
quotequote all
OK thanks Rob.