Digital grey card

canon1

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Martin
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Hi Guys!

Digital grey cards? Where do you get them & are they any good, if so, are some better that other's.
 
How do digital grey cards differ from analogue grey cards?
 
How do digital grey cards differ from analogue grey cards?

Perhaps they are more 'noughty'

:D

A 'Grey card' is just a Grey card whatever you shoot it with. I use an Expodisc so can't help with sourcing - soz

DD
 
interesting link
claims to be "white one-side 18% grey the other"
picture looks more like grey and black!

(memo to self: must re-calibrate monitor!)
 
If it helps, the inside of lowepro bags is supposedly 18% grey, so you can use that instead.

(one of the many usefull things i have learnt on this forum:))
 
If it helps, the inside of lowepro bags is supposedly 18% grey, so you can use that instead.

(one of the many usefull things i have learnt on this forum:))

Wow, now that is interesting! Thanks :)
 
interesting link
claims to be "white one-side 18% grey the other"
picture looks more like grey and black!

Perhaps thats because they didnt use a grey card to take the picture!! ;) :D
 
Wow, now that is interesting! Thanks :)

No probs, i think i saw it in a post from marcel, but could have been someone else.
 
Back of hand is supposed to be around 35%, so it's back of hand, +1stop
Depends on sun tan though
 
How do digital grey cards differ from analogue grey cards?


Well to be a bit nerdy for a mo, in the olden days all a grey card had to be was 18% in terms of exposure control. So a small colour cast wouldn't make any difference to your meter reading and all would be well.

These days the grey card is also used to set a WB point so it needs to be absolutely RGB neutral. :)
 
I got mine with Adobe Photoshop CS3 Book for Digital Photographers (Voices That Matter) by Scott Kelby.

Well actually it's still stuck in the back of the book, I've not use it yet :bonk:
 
please dont hang me and im sorry for im sure what will seem like a truely stupid question to most... but... what is a grey card and what is it used for? :thinking:










:coat:
 
If it helps, the inside of lowepro bags is supposedly 18% grey, so you can use that instead.

(one of the many usefull things i have learnt on this forum:))

So are the drawstring lens pouches that the smaller Canon L's come in....just checked and they are very close to the inside of my Lowepro stuff.

Bob
 
please dont hang me and im sorry for im sure what will seem like a truely stupid question to most... but... what is a grey card and what is it used for? :thinking::coat:

I believe its used to take a meter reading off to get a correct exposure.

Place it in the scene you are taking a pic from.

Its a way to tell your camera a known value it can use as a point of reference.

I think you can set white balance from it too.

If I'm wrong, I'm sure I will soon be shot :)
 
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