Lens for shiny rings and things

gemtracker wrote in post #2259733
Here is a decent shot of a pink diamond and white diamond pendant hand made from platinum in our shop from a drawing by the customer. This with the Canon 60mm, my homemade lightbox and taken at f22 about .2sec.

Why f/22? Couldn't you turn the lights down a bit or add a CP or ND filter?

Did you try taking a shot at f/11 for comparison purposes? Since the pendant is relatively flat you do not need too much depth of field. The trouble with f/22 is that the image often starts to get softer when apertures get smaller than f/11. The sweet spot for many lenses is in the f/8 to f/11 range.

Sometimes you have to use f/22 to get enough depth of field, but I would not think that would be the case with the image you posted. You have a good shot. I am just suggesting that you try this to see if it could be even better.

Jon wrote in post #1752300
Because you can go wider with FF for those who like that. If you want AF with small max. apertures (f/8), that's only available with the 1D series, which don't take EF-S. If you want max. frame rate, you're back with the 1D/1D II line at 8.5 fps. If you want max pixels for enlarging, the 5D does 12 MP, the 1Ds II does 16.7. There are lots of reasons that people have for wanting to move to the EF-only bodies.

Well you took all the words out of my mouth and then some....I love FF...and my only ef-s lens was quick to be sold, being non-versatile...

Dr. Flynn wrote in post #1740431
hey there,

I would watch out with that ef-s mount. you may like the lens to much and be stuck with an ef-s body.

Rian

But what a great stick...then you could buy the 17-55MM EF-S IS and the 10-22 EF-S...more than reason enough to keep a 1.6 crop body in the old kit bag

Well, you'll never be too stuck, will you? Canon lenses seem to hold their value reasonably well, and there are so many EF-S users out there, I can't imagine having too much trouble selling your EF-S lenses if you decide to switch to a FF body.

Raymate:
A quick flame removes the lint.
A lighter is cleaner than a match.

You'll get much more sparkle from the diamonds if you use point lights with small reflectors. For this sort of thing, I usually use one large overhead diffused light with a 4-foot shoot-through umbrella, and two or three lights with small reflectors to add sparkle and specular highlights.

There's a reason why jewelry stores have all those tiny halogen lights all over them. The less diffused the light source, the more the prismatic separation which gives stones their fire.

Rick "who thinks the 60 was intended only to fulfill the function that the 100 fulfills on 24x36 format" Denney