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I am trying to take photos of white bone china , cutlery, glassware and other small catering objects, using a white box/dome. I am using a white back ground but seem to be having problems with exposure and contrast any tits would be helpful
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You might need to re-phrase that !
I use a black background or red green or blue would imagine white is going to cause you problems ! and i am not sure that tits will be help though they would be a useful addition.
If you absolutely have to have a white background my only thought would be to expose for the background as the objects you are photographing are likely to be at a lower exposure.
If possible make your lighting directional as well, maybe having one light from behind, further brightening the background and back-lighting the subject.
When I photograph my wifes painted white china I always use a contrasting colour background if possible but on the few times she's insisted on a white background and I've had to shoot using my light tent my lighting has been as above
I would use a black background so your subject stands out. I would also suggest using a light meter. I have a Sekonic. Hope this is helpful.
theres four leters between t and p !!!! good typo though
I think you might need a p....
Instead of the second t!
But I would suggest a black or dark grey background too, then you can afford to light the subject a little more.
Ideally at least two lights required - the greater to rule the background and keep it white. The lesser to light the item. (Of course some of the reflected light from the background may be enough to light the item).
You need to expose the plate correctly and have the background over exposed to keep it white.
But the plate is probally mostly white to will tend to under expose too.
So lean a grey card up against the plate and take a exposure reading - lock/set this exposure, remove the card and take the picture.
All may be good, but you may yet adjust exposure up/down a bit if you wish.
Now if contrast is an issue then maybe too much light is coming off the backdrop and overpowering the scene. So reduce the proportion of the backdrop light in the scene - the simplest way is to move it further away.
It is because you're using a white dome/box, that you are having the problems with exposure and contrast - these box/dome units are made to soften shadows and contrast.
I would experiment shooting against a coloured or black base/background, and forget the box/dome for this particular project.
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