Kaowdo wrote:
I'm a senior, and I'm very new to all this. I got a Canon DSLR SL1 to take jewelry photo's. I got a very nice 'light tent'...with built in lights. My Camera did not come with a flash attachment. I've been reading up on Aperatures. Less Aperatures...more light. Should I get a flash attachment, or can I make it work with using Aperatures?
Thanks in advance
Hi,
In my line of work, I often take pictures of reflective objects like jewelry, bottles etc.
Mirrored objects are the hardest thing to take pictures of.
In the bottle image below, you can actually see the room where it was taken. It looks like a hallway with the ceiling and ceiling lights clearly visible.
In the pendant sample, it is passable if printed small like flyers or handouts, but on looking at the photo closely, I can see myself, the camera, ceiling & ceiling lights. So it is also not good for large posters.
The last image is what can happen when a big aperture is used. Yes it will take in more light, but will also make a shallow depth of field and some lenses are not sharp fully open so not only do the sharpest part will be out of focus already, the other parts will be more so. Here the other end of the necklace is much out of focus. On the ring, the diamond is out of focus but the back end of the loop is sharp.
To wrap it up, Mirrored objects are best photographed in a dark lit room where the lighting is focused to the object but located far from it. For small items like jewelry, a lightbox is a good option if the above snoot lighting is impractical.
In both cases;
1. Wear dark clothes and shoot on a dark room.
2. Use a good tripod. If all you have is a wobbly one, don't extend the legs.
3. Use a smaller aperture to increase DOF
4. Use the lowest ISO of the camera.
5. Delay the shutter so the camera is steady before it takes a picture
6. Use the shutter speed setting to brighten or darken your image.
7. If required, use focus stacking.
8. DO NOT USE FLASH if you can not control light bleeding out to all directions. It will complicate your problem.
9. Keep chimping so you can see if you have taken a good image and adjust as needed.
10. JPEG is usually sufficient for a controlled lighting scene, but on mirrored objects with a very high contrast, RAW would be a better choice. If you know how to process RAW, use it. Either way, some form of editing afterwards will produce a better final image.